Patent ID: 12235494

DETAILED DESCRIPTION

FIG.1is a diagram of a portion of an example communications and data management system100. The example system100shown inFIG.1includes a part of a communications network101along which communications signals S1pass. In one example implementation, the network101can include an Internet Protocol network. In other implementations, however, the communications network101may include other types of networks.

The communications network101includes interconnected network components (e.g., connector assemblies, inter-networking devices, internet working devices, servers, outlets, and end user equipment (e.g., computers)). In one example implementation, communications signals S1pass from a computer to a wall outlet to a port of communication panel, to a first port of an inter-networking device, out another port of the inter-networking device, to a port of the same or another communications panel, to a rack mounted server.

The portion of the communications network101shown inFIG.1includes first and second connector assemblies130,130′ at which communications signals S1pass from one portion of the communications network101to another portion of the communications network101. Non-limiting examples of connector assemblies130,130′ include, for example, rack-mounted connector assemblies (e.g., patch panels, distribution units, and media converters for fiber and copper physical communication media), wall-mounted connector assemblies (e.g., boxes, jacks, outlets, and media converters for fiber and copper physical communication media), and inter-networking devices (e.g., switches, routers, hubs, repeaters, gateways, and access points). In the example shown, the first connector assembly130defines at least one port132configured to communicatively couple at least a first media segment105to at least a second media segment115to enable the communication signals S1to pass between the media segments105,115.

The at least one port132of the first connector assembly130may be directly connected to a port132′ of the second connector assembly130′. As the term is used herein, the port132is directly connected to the port132′ when the communications signals S1pass between the two ports132,132′ without passing through an intermediate port. For example, routing a patchcord between port132and port132′ directly connects the ports132,132′.

The port132of the first connector assembly130also may be indirectly connected to the port132′ of the second connector assembly130′. As the term is used herein, the port132is indirectly connected to the port132′ when the communications signals S1pass through an intermediate port when traveling between the ports132,132′. For example, in one implementation, the communications signals S1may be routed over one media segment from the port132at the first connector assembly130to a port of a third connector assembly at which the media segment is coupled to another media segment that is routed from the port of the third connector assembly to the port132′ of the second connector assembly130′.

Non-limiting examples of media segments include optical fibers, which carry optical data signals, and electrical conductors (e.g., CAT-5, 6, and 7 twisted-pair cables), which carry electrical data signals. Media segments also can include electrical plugs, fiber optic connectors (e.g., SC, LC, FC, LX.5, or MPO connectors), adapters, media converters, and other physical components terminating to the fibers, conductors, or other such media segments. The techniques described here also can be used with other types of connectors including, for example, BNC connectors, F connectors, DSX jacks and plugs, bantam jacks and plugs.

In the example shown, each media segment105,115is terminated at a plug or connector110,120, respectively, which is configured to communicatively connect the media segments105,115. For example, in one implementation, the port132of the connector assembly130can be configured to align ferrules of two fiber optic connectors110,120. In another implementation, the port132of the connector assembly130can be configured to electrically connect an electrical plug with an electrical socket (e.g., a jack). In yet another implementation, the port132can include a media converter configured to connect an optical fiber to an electrical conductor.

In accordance with some aspects, the connector assembly130does not actively manage (e.g., is passive with respect to) the communications signals S1passing through port132. For example, in some implementations, the connector assembly130does not modify the communications signal S1carried over the media segments105,115. Further, in some implementations, the connector assembly130does not read, store, or analyze the communications signal S1carried over the media segments105,115.

In accordance with aspects of the disclosure, the communications and data management system100also provides physical layer information (PLI) functionality as well as physical layer management (PLM) functionality. As the term is used herein, “PLI functionality” refers to the ability of a physical component or system to identify or otherwise associate physical layer information with some or all of the physical components used to implement the physical layer of the system. As the term is used herein, “PLM functionality” refers to the ability of a component or system to manipulate or to enable others to manipulate the physical components used to implement the physical layer of the system (e.g., to track what is connected to each component, to trace connections that are made using the components, or to provide visual indications to a user at a selected component).

As the term is used herein, “physical layer information” refers to information about the identity, attributes, and/or status of the physical components used to implement the physical layer of the communications system101. In accordance with some aspects, physical layer information of the communications system101can include media information, device information, and location information.

As the term is used herein, “media information” refers to physical layer information pertaining to cables, plugs, connectors, and other such media segments. In accordance with some aspects, the media information is stored on or in the media segments, themselves. In accordance with other aspects, the media information can be stored at one or more data repositories for the communications system, either alternatively or in addition to the media, themselves. Non-limiting examples of media information include a part number, a serial number, a plug or other connector type, a conductor or fiber type, a cable or fiber length, cable polarity, a cable or fiber pass-through capacity, a date of manufacture, a manufacturing lot number, information about one or more visual attributes of physical communication media (e.g., information about the color or shape of the physical communication media or an image of the physical communication media), and an insertion count (i.e., a record of the number of times the media segment has been connected to another media segment or network component). Media information also can include testing or media quality or performance information. The testing or media quality or performance information, for example, can be the results of testing that is performed when a particular segment of media is manufactured.

As the term is used herein, “device information” refers to physical layer information pertaining to the communications panels, inter-networking devices, media converters, computers, servers, wall outlets, and other physical communications devices to which the media segments attach. In accordance with some aspects, the device information is stored on or in the devices, themselves. In accordance with other aspects, the device information can be stored at one or more data repositories for the communications system, either alternatively or in addition to the devices, themselves. Non-limiting examples of device information include a device identifier, a device type, port priority data (that associates a priority level with each port), and port updates (described in more detail herein).

As the term is used herein, “location information” refers to physical layer information pertaining to a physical layout of a building or buildings in which the network101is deployed. Location information also can include information indicating where each communications device, media segment, network component, or other component that is physically located within the building. In accordance with some aspects, the location information of each system component is stored on or in the respective component. In accordance with other aspects, the location information can be stored at one or more data repositories for the communications system, either alternatively or in addition to the system components, themselves.

In accordance with some aspects, one or more of the components of the communications network101is configured to store physical layer information pertaining to the component as will be disclosed in more detail herein. InFIG.1, the connectors110,120, the media segments105,115, and/or the connector assemblies130,130′ may store physical layer information. For example, inFIG.1, each connector110,120may store information pertaining to itself (e.g., type of connector, data of manufacture, etc.) and/or to the respective media segment105,115(e.g., type of media, test results, etc.).

In another example implementation, the media segments105,115or connectors110,120may store media information that includes a count of the number of times that the media segment (or connector) has been inserted into port132. In such an example, the count stored in or on the media segment is updated each time the segment (or plug or connector) is inserted into port132. This insertion count value can be used, for example, for warranty purposes (e.g., to determine if the connector has been inserted more than the number of times specified in the warranty) or for security purposes (e.g., to detect unauthorized insertions of the physical communication media).

In accordance with certain aspects, one or more of the components of the communications network101also can read the physical layer information from one or more media segments retained thereat. In certain implementations, one or more network components includes a media reading interface that is configured to read physical layer information stored on or in the media segments or connectors attached thereto. For example, in one implementation, the connector assembly130includes a media reading interface134that can read media information stored on the media cables105,115retained within the port132. In another implementation, the media reading interface134can read media information stored on the connectors or plugs110,120terminating the cables105,115, respectively.

In some implementations, some types of physical layer information can be obtained by the connector assembly130from a user at the connector assembly130via a user interface (e.g., a keypad, a scanner, a touch screen, buttons, etc.). The connector assembly130can provide the physical layer information obtained from the user to other devices or systems that are coupled to the network101(as described in more detail herein). In other implementations, some or all physical layer information can be obtained by the connector assembly130from other devices or systems that are coupled to the network101. For example, physical layer information pertaining to media that is not configured to store such information can be entered manually into another device or system that is coupled to the network101(e.g., at the connector assembly130, at the computer160, or at the aggregation point150).

In some implementations, some types of non-physical layer information (e.g., network information) can be obtained by one network component from other devices or systems that are coupled to the network101. For example, the connector assembly130may pull non-physical layer information from one or more components of the network101. In other implementations, the non-physical layer information can be obtained by the connector assembly130from a user at the connector assembly130.

In accordance with some aspects of the disclosure, the physical layer information read by a network component may be processed or stored at the component. For example, in certain implementations, the first connector assembly130shown inFIG.1is configured to read physical layer information stored on the connectors110,120and/or on the media segments105,115using media reading interface134. Accordingly, inFIG.1, the first connector assembly130may store not only physical layer information about itself (e.g., the total number of available ports at that assembly130, the number of ports currently in use, etc.), but also physical layer information about the connectors110,120inserted at the ports and/or about the media segments105,115attached to the connectors110,120.

In some implementations, the connector assembly130is configured to add, delete, and/or change the physical layer information stored in or on the segment of physical communication media105,115(i.e., or the associated connectors110,120). For example, in some implementations, the media information stored in or on the segment of physical communication media105,115can be updated to include the results of testing that is performed when a segment of physical media is installed or otherwise checked. In other implementations, such testing information is supplied to the aggregation point150for storage and/or processing. In some implementations, modification of the physical layer information does not affect the communications signals S1passing through the connector assembly130.

In other implementations, the physical layer information obtained by the media reading interface (e.g., interface134ofFIG.1) may be communicated (see PLI signals S2) over the network101for processing and/or storage. The components of the communications network101are connected to one or more aggregation devices150(described in greater detail herein) and/or to one or more computing systems160. For example, in the implementation shown inFIG.1, each connector assembly130includes a PLI port136that is separate from the “normal” ports132of the connector assembly130. Physical layer information is communicated between the connector assembly130and the network101through the PLI port136. In the example shown inFIG.1, the connector assembly130is connected to a representative aggregation device150, a representative computing system160, and to other components of the network101(see looped arrow) via the PLI port136.

The physical layer information is communicated over the network101just like any other data that is communicated over the network101, while at the same time not affecting the communication signals S1that pass through the connector assembly130on the normal ports132. Indeed, in some implementations, the physical layer information may be communicated as one or more of the communication signals S1that pass through the normal ports132of the connector assemblies130,130′. For example, in one implementation, a media segment may be routed between the PLI port136and one of the “normal” ports132. In such an implementation, the physical layer information may be passed along the communications network101to other components of the communications network101(e.g., to the one or more aggregation points150and/or to the one or more computer systems160). By using the network101to communicate physical layer information pertaining to it, an entirely separate network need not be provided and maintained in order to communicate such physical layer information.

In other implementations, however, the communications network101includes a data network along which the physical layer information described above is communicated. At least some of the media segments and other components of the data network may be separate from those of the communications network101to which such physical layer information pertains. For example, in some implementations, the first connector assembly130may include a plurality of fiber optic adapters defining ports at which connectorized optical fibers are optically coupled together to create an optical path for communications signals S1. The first connector assembly130also may include one or more electrical cable ports at which the physical layer information (see PLI signals S2) are passed to other parts of the data network. (e.g., to the one or more aggregation points150and/or to the one or more computer systems160).

FIG.2is a block diagram of one example implementation of a communications management system200that includes PLI functionality as well as PLM functionality. The management system200comprises a plurality of connector assemblies202. The system200includes one or more connector assemblies202connected to an IP network218. The connector assemblies202shown inFIG.2illustrate various implementations of the connector assembly130ofFIG.1.

Each connector assembly202includes one or more ports204, each of which is used to connect two or more segments of physical communication media to one another (e.g., to implement a portion of a logical communication link for communication signals S1ofFIG.1). At least some of the connector assemblies202are designed for use with segments of physical communication media that have physical layer information stored in or on them. The physical layer information is stored in or on the segment of physical communication media in a manner that enables the stored information, when the segment is attached to a port204, to be read by a programmable processor206associated with the connector assembly202.

In the particular implementation shown inFIG.2, each of the ports204of the connector assemblies202comprises a respective media reading interface208via which the respective programmable processor206is able to determine if a physical communication media segment is attached to that port204and, if one is, to read the physical layer information stored in or on the attached segment (if such media information is stored therein or thereon). The programmable processor206associated with each connector assembly202is communicatively coupled to each of the media reading interfaces208using a suitable bus or other interconnect (not shown).

In the particular implementation shown inFIG.2, four example types of connector assembly configurations are shown. In the first connector assembly configuration210shown inFIG.2, each connector assembly202includes its own respective programmable processor206and its own respective network interface216that is used to communicatively couple that connector assembly202to an Internet Protocol (IP) network218.

In the second type of connector assembly configuration212, a group of connector assemblies202are physically located near each other (e.g., in a bay or equipment closet). Each of the connector assemblies202in the group includes its own respective programmable processor206. However, in the second connector assembly configuration212, some of the connector assemblies202(referred to here as “interfaced connector assemblies”) include their own respective network interfaces216while some of the connector assemblies202(referred to here as “non-interfaced connector assemblies”) do not. The non-interfaced connector assemblies202are communicatively coupled to one or more of the interfaced connector assemblies202in the group via local connections. In this way, the non-interfaced connector assemblies202are communicatively coupled to the IP network218via the network interface216included in one or more of the interfaced connector assemblies202in the group. In the second type of connector assembly configuration212, the total number of network interfaces216used to couple the connector assemblies202to the IP network218can be reduced. Moreover, in the particular implementation shown inFIG.2, the non-interfaced connector assemblies202are connected to the interfaced connector assembly202using a daisy chain topology (though other topologies can be used in other implementations and embodiments).

In the third type of connector assembly configuration214, a group of connector assemblies202are physically located near each other (e.g., within a bay or equipment closet). Some of the connector assemblies202in the group (also referred to here as “master” connector assemblies202) include both their own programmable processors206and network interfaces216, while some of the connector assemblies202(also referred to here as “slave” connector assemblies202) do not include their own programmable processors206or network interfaces216. Each of the slave connector assemblies202is communicatively coupled to one or more of the master connector assemblies202in the group via one or more local connections. The programmable processor206in each of the master connector assemblies202is able to carry out the PLM functions for both the master connector assembly202of which it is a part and any slave connector assemblies202to which the master connector assembly202is connected via the local connections. As a result, the cost associated with the slave connector assemblies202can be reduced. In the particular implementation shown inFIG.2, the slave connector assemblies202are connected to a master connector assembly202in a star topology (though other topologies can be used in other implementations and embodiments).

Each programmable processor206is configured to execute software or firmware that causes the programmable processor206to carry out various functions described below. Each programmable processor206also includes suitable memory (not shown) that is coupled to the programmable processor206for storing program instructions and data. In general, the programmable processor206determines if a physical communication media segment is attached to a port204with which that processor206is associated and, if one is, to read the identifier and attribute information stored in or on the attached physical communication media segment (if the segment includes such information stored therein or thereon) using the associated media reading interface208.

In the fourth type of connector assembly configuration215, a group of connector assemblies202are housed within a common chassis or other enclosure. Each of the connector assemblies202in the configuration215includes their own programmable processors206. In the context of this configuration215, the programmable processors206in each of the connector assemblies are “slave” processors206. Each of the slave programmable processor206is also communicatively coupled to a common “master” programmable processor217(e.g., over a backplane included in the chassis or enclosure). The master programmable processor217is coupled to a network interface216that is used to communicatively couple the master programmable processor217to the IP network218.

In this configuration215, each slave programmable processor206is configured to determine if physical communication media segments are attached to its port204and to read the physical layer information stored in or on the attached physical communication media segments (if the attached segments have such information stored therein or thereon) using the associated media reading interfaces208. The physical layer information is communicated from the slave programmable processor206in each of the connector assemblies202in the chassis to the master processor217. The master processor217is configured to handle the processing associated with communicating the physical layer information read from by the slave processors206to devices that are coupled to the IP network218.

The system200includes functionality that enables the physical layer information that the connector assemblies202capture to be used by application-layer functionality outside of the traditional physical-layer management application domain. That is, the physical layer information is not retained in a PLM “island” used only for PLM purposes but is instead made available to other applications. In the particular implementation shown inFIG.2, the management system200includes an aggregation point220that is communicatively coupled to the connector assemblies202via the IP network218.

The aggregation point220includes functionality that obtains physical layer information from the connector assemblies202(and other devices) and stores the physical layer information in a data store. The aggregation point220can be used to receive physical layer information from various types of connector assemblies202that have functionality for automatically reading information stored in or on the segment of physical communication media. Also, the aggregation point220and aggregation functionality224can be used to receive physical layer information from other types of devices that have functionality for automatically reading information stored in or on the segment of physical communication media. Examples of such devices include end-user devices—such as computers, peripherals (e.g., printers, copiers, storage devices, and scanners), and IP telephones—that include functionality for automatically reading information stored in or on the segment of physical communication media.

The aggregation point220also can be used to obtain other types of physical layer information. For example, in this implementation, the aggregation point220also obtains information about physical communication media segments that is not otherwise automatically communicated to an aggregation point220. This information can be provided to the aggregation point220, for example, by manually entering such information into a file (e.g., a spreadsheet) and then uploading the file to the aggregation point220(e.g., using a web browser) in connection with the initial installation of each of the various items. Such information can also, for example, be directly entered using a user interface provided by the aggregation point220(e.g., using a web browser).

The aggregation point220also includes functionality that provides an interface for external devices or entities to access the physical layer information maintained by the aggregation point220. This access can include retrieving information from the aggregation point220as well as supplying information to the aggregation point220. In this implementation, the aggregation point220is implemented as “middleware” that is able to provide such external devices and entities with transparent and convenient access to the PLI maintained by the access point220. Because the aggregation point220aggregates PLI from the relevant devices on the IP network218and provides external devices and entities with access to such PLI, the external devices and entities do not need to individually interact with all of the devices in the IP network218that provide PLI, nor do such devices need to have the capacity to respond to requests from such external devices and entities.

For example, as shown inFIG.2, a network management system (NMS)230includes PLI functionality232that is configured to retrieve physical layer information from the aggregation point220and provide it to the other parts of the NMS230for use thereby. The NMS230uses the retrieved physical layer information to perform one or more network management functions. The NMS230communicates with the aggregation point220over the IP network218.

As shown inFIG.2, an application234executing on a computer236can also use the API implemented by the aggregation point220to access the PLI information maintained by the aggregation point220(e.g., to retrieve such information from the aggregation point220and/or to supply such information to the aggregation point220). The computer236is coupled to the IP network218and accesses the aggregation point220over the IP network218.

In the example shown inFIG.2, one or more inter-networking devices238used to implement the IP network218include physical layer information (PLI) functionality240. The PLI functionality240of the inter-networking device238is configured to retrieve physical layer information from the aggregation point220and use the retrieved physical layer information to perform one or more inter-networking functions. Examples of inter-networking functions include Layer1, Layer2, and Layer3(of the OSI model) inter-networking functions such as the routing, switching, repeating, bridging, and grooming of communication traffic that is received at the inter-networking device.

The aggregation point220can be implemented on a standalone network node (e.g., a standalone computer running appropriate software) or can be integrated along with other network functionality (e.g., integrated with an element management system or network management system or other network server or network element). Moreover, the functionality of the aggregation point220can be distribute across many nodes and devices in the network and/or implemented, for example, in a hierarchical manner (e.g., with many levels of aggregation points). The IP network218can include one or more local area networks and/or wide area networks (e.g., the Internet). As a result, the aggregation point220, NMS230, and computer236need not be located at the same site as each other or at the same site as the connector assemblies202or the inter-networking devices238.

Also, power can be supplied to the connector assemblies202using conventional “Power over Ethernet” techniques specified in the IEEE 802.3af standard, which is hereby incorporated herein by reference. In such an implementation, a power hub242or other power supplying device (located near or incorporated into an inter-networking device that is coupled to each connector assembly202) injects DC power onto one or more of the wires (also referred to here as the “power wires”) included in the copper twisted-pair cable used to connect each connector assembly202to the associated inter-networking device.

FIG.3is a schematic diagram of one example connection system1800including a connector assembly1810configured to collect physical layer information from at least one segment of physical communications media. The example connector assembly1820ofFIG.3is configured to connect segments of optical physical communications media in a physical layer management system. The connector assembly1800includes a fiber optic adapter1810defining at least one connection opening1811having a first port1812and a second port1814. A sleeve (e.g., a split sleeve)1803is arranged within the connection opening1811of the adapter1810between the first and second ports1812,1814. Each port1812,1814is configured to receive a connector arrangement as will be described in greater detail herein.

A first example segment of optical physical communication media includes a first connector arrangement1820and a second example segment of optical physical communication media includes a second connector arrangement1830. The first connector arrangement1820is plugged into the first port1812of the adapter1810and the second connector arrangement1830is plugged into the second port1814of the adapter1810. Each fiber connector arrangement1820,1830includes a ferrule1824,1834that terminates an optical fiber1822,1832, respectively.

The ferrules1824,1834of the connector arrangements1820,1830are aligned by the sleeve1803when the connector arrangements1820,1830are inserted into the adapter1810. Aligning the ferrules1824,1834provides optical coupling between the optical fibers1822,1832. Each segment of optical physical communication media (e.g., each optical fiber1822,1832) carries communication signals (e.g., communications signals S1ofFIG.1). The aligned ferrules1824,1834of the connector arrangements1820,1830create an optical path along which the communication signals may be carried.

In some implementations, the first connector arrangement1820may include a storage device1825that is configured to store physical layer information (e.g., an identifier and/or attribute information) pertaining to the segment of physical communications media (e.g., the first connector arrangement1825and/or the fiber optic cable terminated thereby). In some embodiments, the connector arrangement1830also includes a storage device1835that is configured to store information (e.g., an identifier and/or attribute information) pertaining to the second connector arrangement1835.

In one implementation, each of the storage devices1825,1835is implemented using an EEPROM (e.g., a PCB surface-mount EEPROM). In other implementations, the storage devices1825,1835are implemented using other non-volatile memory device. Each storage device1825,1835is arranged and configured so that it does not interfere or interact with the communications signals communicated over the media segments1822,1832.

The adapter1810is coupled to at least a first media reading interface1816. In certain implementations, the adapter1810also is coupled to a second media interface1818. In some implementations, the adapter1810is coupled to multiple media reading interfaces. In certain embodiments, the adapter1810includes a media reading interface for each port defined by the adapter1810. In other embodiments, the adapter1810includes a media reading interface for each connection opening1811defined by the adapter1810. In still other embodiments, the adapter1810includes a media reading interface for each connector arrangement that the adapter1810is configured to receive. In still other embodiments, the adapter1810includes a media reading interface for only a portion of the connector arrangement that the adapter1810is configured to receive.

In some implementations, the first media reading interface1816is mounted to a printed circuit board1815. In the example shown, the first media reading interface1816of the printed circuit board1815is associated with the first port1812of the adapter1810. In some embodiments, the printed circuit board1815also can include the second media reading interface1818. In one such embodiment, the second media reading interface1818is associated with the second port1814of the adapter1810.

The printed circuit board1815of the connector assembly1800can be communicatively connected to one or more programmable processors and/or to one or more network interfaces. The network interface may be configured to send the physical layer information to the data network (e.g., see signals S2ofFIG.1). In one implementation, one or more such processors and interfaces can be arranged as components on the printed circuit board1815. In another embodiment, one or more such processor and interfaces can be arranged on a separate circuit board that is coupled to the printed circuit board1815. For example, the printed circuit board1815can couple to other circuit boards via a card edge type connection, a connector-to-connector type connection, a cable connection, etc.

When the first connector arrangement1820is received in the first port1812of the adapter1810, the first media reading interface1816is configured to enable reading (e.g., by the processor) of the information stored in the storage device1825. The information read from the first connector arrangement1820can be transferred through the printed circuit board1815to a physical layer management network, e.g., network101ofFIG.1, network218ofFIG.2, etc. When the second connector arrangement1830is received in the second port1814of the adapter1810, the second media reading interface1818is configured to enable reading (e.g., by the processor) of the information stored in the storage device1835. The information read from the second connector arrangement1830can be transferred through the printed circuit board1815to the physical layer management network.

In some such implementations, the storage devices1825,1835and the media reading interfaces1816,1818each comprise three (3) leads—a power lead, a ground lead, and a data lead. The three leads of the storage devices1825,1835come into electrical contact with three (3) corresponding leads of the media reading interfaces1816,1818when the corresponding media segment is inserted in the corresponding port. In certain example implementations, a two-line interface is used with a simple charge pump. In still other implementations, additional leads can be provided (e.g., for potential future applications). Accordingly, the storage devices1825,1835and the media reading interfaces1816,1818may each include four (4) leads, five (5) leads, six (6) leads, etc.

FIGS.4-31provide example implementations of physical layer management networks and components for optical telecommunications applications.FIGS.4-11show one example fiber connector arrangement2000suitable for use in a physical layer management system (e.g., as one or both of the connector arrangements1820,1830shown inFIG.3). The fiber connector arrangement2000includes at least one connector2001configured to receive at least a first optical fiber2002A and terminate the optical fiber at a ferrule2004A. The fiber2002A may include sheathing (e.g., a buffer tube, a jacket, and/or one or more strength members)2003A. Initially, the ferrule2004A can be covered and protected by a dust cap2005A. A boot2006A can cover and protect the fiber2002A as the fiber leaves the connector2001.

In the example shown, the connector arrangement2000is a duplex LC-type connector arrangement2000. The duplex connector arrangement2000includes a second connector2001is configured to receive a second optical fiber2002B and to terminate the second optical fiber at a second ferrule2004B. A second dust cap2005B covers the second ferrule2004B and a second boot2006B protects the second fiber2002B as the second fiber2002B leaves the housing2001. In other embodiments, however, the connector arrangement2000can be configured to terminate greater or fewer optical fibers.

The connector arrangement2000also includes a storage device2012coupled to at least one of the connectors2001(seeFIGS.5-7). The connector arrangement2000also includes a storage interface2014. In the example shown, the storage device2012and the storage interface2014are arranged on a printed circuit board2010. The storage device2012is configured to store physical layer information (e.g., an identifier and/or attribute information) pertaining to the connector arrangement2000. In one example embodiment, the storage device2012includes an EEPROM circuit arranged on the printed circuit board2010. In other embodiments, however, the storage device2012can include any suitable type of memory. The storage interface2014is configured to enable the physical layer information to be read from the storage device2012by a media reading interface as described herein (e.g., media reading interfaces1816,1818ofFIG.3).

In some embodiments, the connector arrangement2000also can include additional components to aid in physical layer management. In one embodiment, the connector arrangement2000also can include a communications device2016(FIG.7) that is configured to send and receive communications signals to and from a local source. For example, the communications device2016can include an infra-red transceiver that sends and receives infra-red signals. Such a communications device2016can enable a technician to read and/or write data to the storage device2012using an infra-red wand or probe (e.g., a handheld wand or probe). Accordingly, the technician can access information stored on the connector arrangement2000without unplugging the connector arrangement2000out of a port of a connection assembly, which will be described in detail herein. Additional components (e.g., a MOSFET circuit)2018also can be arranged on the connector arrangement2000(e.g., on the printed circuit board2010) as desired.

In certain embodiments, the storage device2012and storage interface2014can be arranged on a printed circuit board2010that is coupled to at least one of the connectors2001. In one embodiment, the communications device2016also can be arranged on the printed circuit board2010. In some embodiments, the printed circuit board2010is coupled to the connector2001by a frame2020. In accordance with some aspects, the storage device2012can be added (i.e., retrofitted) to an existing fiber optic connector, such as an existing LC-style duplex connector, using the frame2020.

In the example shown, the frame2020includes a retainer2021, in which the printed circuit board2010can seat, and a frame body2022. The frame body2022couples to the retainer2021at one or more connection points2024. For example, the frame body2022can be glued, melted, or otherwise fastened to the retainer2021at these points2024. The frame body2022defines one or more cutouts2025sized and shaped to accommodate the connectors2001. In certain implementations, the frame body2022defines a cutout2025for each connector2001to be held by the frame2022. In the example shown, the frame includes two cutouts2025to hold two connectors2001. However, inFIG.8, one of the cutouts2025has been removed so that a latch2030holding down the storage device2012(discussed in more detail herein) is visible. An intermediate wall2023extends between the two cutouts2025to define separate channels in which the connector holders may be accommodated (seeFIGS.4and8).

The frame body2022also defines a channel2026in which the components (e.g., the storage device2012) of the printed circuit board2011can be accommodated. In some embodiments, the frame2022can include a bar or rod2027that extends across a top of the frame body2022over or through the body2001of the connector. In certain embodiments, one or more flanges2028can protrude upwardly from the bar2027. In certain implementations, the bar2027includes a flange2028for each optical fiber accommodated by the connector arrangement2000. In one implementation, labels L can be placed on the flanges to identify which optical fiber is which (e.g., seeFIG.9).

In some embodiments, the retainer2021can include side arms2029to increase the connection with the frame body2022(e.g. seeFIGS.7-8). For example, in one embodiment, the side arms2029can extend upwardly around the outside of at least one of the connectors2001and couple to the bar2027of the frame body2022. For example, the bar2027can be glued, melted, or otherwise fastened to the side arms2029. The side arms2029also can include a latch2030that is configured to hold the frame body2022against the printed circuit board2010. In other embodiments, however, the frame body2022can couple to the connectors2001without the aid of the side arms2029. For example, the bar2027of the frame body2022can be glued, melted, or otherwise fastened to the connectors2001(e.g., seeFIG.10). In one embodiment, the bar2027extends through a channel2007defined in each connector2001(e.g., seeFIGS.8and10).

FIGS.12-25illustrate one example connector assembly that is configured as a panel module2100. The panel module2100includes a housing2101defining a longitudinal axis L and having a first side2106and a second side2107(seeFIG.17). The panel module housing2101defines one or more mounting locations2105(FIG.18) at which one or more adapter assemblies2110can be mounted. The housing2101also is configured to hold at least one printed circuit board2120on which at least one media reading interface2122is arranged. Each media reading interface2122is configured to obtain information stored on a connector arrangement (e.g., connection arrangement2000ofFIGS.4-11) that is inserted into a port in one of the adapter assemblies2110. The printed circuit board2120also defines a network interface2124that communicatively couples the media reading interface2122to a physical layer management network.

In some embodiments, the printed circuit board2120includes one media reading interface2122for each adapter assembly port in the panel module2100. In other embodiments, the printed circuit board2120includes one media reading interface2122for each connector arrangement to be received in the panel module2100. For example, in some embodiments, if the adapter assembly2110is configured to receive a duplex connector arrangement (e.g., connector arrangement2000ofFIGS.4-11), then the printed circuit board2120will include one media reading interface2122for every two adapter assembly ports2112,2113.

In some embodiments, the network interface2124of the printed circuit board includes a card edge interface defined along one end of the printed circuit board2120(e.g., seeFIG.12-15) to connect the printed circuit board2120to a physical layer management network. In other embodiments, the network interface2124can include a connector interface that is configured to mate with another connector or receptacle. In other embodiments, the network interface2124connects to one or more cables (e.g., copper) that connect the printed circuit board2120to the physical layer management network.

Each fiber optic adapter assembly2110defines one or more connection openings2111(FIGS.16,19, and24) configured to connect the optical fibers of two connector arrangements (e.g., connector arrangements2000ofFIGS.4-11). Each connection opening2111defines a first port2112(FIG.12) that generally faces a first side2106of the module housing2101and a second port2113(FIG.13) that generally faces a second side2107of the housing2101. The ports2112,2113of each connection opening2111have a common insertion axis I (FIG.17). In some embodiments, the connection openings2111of an example adapter assembly2110have parallel insertion axes. Moreover, in some embodiments, the connection openings2111of each adapter assembly2110in an example panel module2100have parallel insertion axes (e.g., seeFIG.17). In other embodiments, the adapter assemblies2110of a panel module2100can define connection openings having non-parallel insertion axes.

In the example shown, each adapter assembly2110defines four connection openings2111. Accordingly, each adapter assembly2110defines four first ports2112and four second ports2113. In one embodiment, such an adapter assembly2110can be configured to receive eight separate connector assemblies each having one optical fiber. In another embodiment, such an adapter assembly2110can be configured to receive four duplex connector arrangements, each having two optical fibers (e.g., connector arrangements2000ofFIGS.4-11). In other embodiments, however, each adapter assembly2110can define greater or fewer connection openings2111.

Some example panel modules2100can include two or more adapter assemblies2110. In some such embodiments, the adapter assemblies2110can be arranged along one side of the printed circuit board2120. In other embodiments, the printed circuit board2120can be arranged between two or more adapter assemblies2110. For example, in some embodiments, components (e.g., media reading interfaces2122) can be arranged on two sides of the printed circuit board2120. One or more adapter assemblies can be arranged (e.g., in rows) along each side of the board2120. For example, a first adapter assembly2110A can be arranged above a first side2121of the printed circuit board2120and a second adapter assembly2110B can be arranged below a second side2123of the printed circuit board2120(e.g., seeFIG.16).

Other example panel modules2100can include two or more printed circuit boards2120. For example, in some embodiments, two printed circuit boards (not shown) can be arranged in parallel between two rows of adapter assemblies2110. Each printed circuit board can include components (e.g., media reading interfaces2122) along at least one side of the board for interaction with the nearest adapter assembly2110. In other embodiments, two or more printed circuit boards (not shown) can be arranged in a coplanar configuration. In such embodiments, each board can service one or more adapter assemblies2110. The printed circuit boards can be connected together via wiring, soldering, edge connection, etc. In still other embodiments, the panel modules2100can include multiple layers of adapter assemblies and printed circuit boards.

In some embodiments, the adapter assemblies2110are oriented within the housing2101so that the insertion axes I of the connection openings2111are generally orthogonal to the longitudinal axis L of the housing2101(plus or minus a reasonable tolerance). In other embodiments, however, the adapter assemblies2110can be oriented so that the insertion axes I of the connection openings2111are arranged at an angle □ relative to the longitudinal axis L that is less than 90°. For example, in some embodiments, the angle □ can be less than or equal to 75°. In some embodiments, the angle □□ can be less than or equal to 60° and, in some embodiments, can be less than or equal to 45°. Such angling of the adapter assemblies2110within a panel module2100may facilitate bend radius management for fibers extending from connector arrangements that have been inserted into the ports of the adapter assemblies2110.

In some embodiments, the panel module housing2101can define a stepped profile (e.g., see steps2108ofFIG.17). One or more adapter assemblies2110can be arranged within each “step”2108of the profile. In some example embodiments, the adapter assemblies2110of an example panel module2100can be offset from each other along a plane that is orthogonal to the insertion axes I of the adapter assemblies2110(e.g., seeFIG.17). In the example shown inFIG.17, an example panel module housing2101defines a profile with three steps:2108A,2108B, and2108C. One adapter assembly2110per row is contained within each step2108A,2108B,2108C. In other example embodiments, however, two or more adapter assemblies2110can be arranged on each step2108of the profile.

In some embodiments, the printed circuit board2120has a stepped profile to match the stepped profile of the panel module housing2101. For example, the printed circuit board2120ofFIG.18defines a profile having three steps2128A,2128B, and2128C. In other embodiments, however, the panel module2100can include multiple printed circuit boards2120to accommodate the stepped profile of the module housing2101. For example, each step2108in the panel module housing2101can house one or more printed circuit boards. In one embodiment, the printed circuit board2120is generally flat. In other embodiments, however, the printed circuit board2120can be bent, curved, or flexible to accommodate adapter assemblies2110in different orientations.

In certain embodiments, the panel module housing2101can be formed from multiple pieces. In the example shown inFIG.18, the panel module housing2101includes a first housing portion2102and a second housing portion304that sandwich the adapter assemblies2110and the printed circuit board2120therebetween. In one embodiment, the first housing portion2102is coupled to the second housing portion2104by one or more fasteners2103(e.g., screws, rivets, adhesive, etc.). In another embodiment, the first housing portion2102can be friction fit, melted, or otherwise connected to the second housing portion2104. In other embodiments, however, the panel module housing2101can be integral or can be formed from three or more pieces.

Each portion2102,2104of the module housing2101can define one or more mounting locations2105in which the adapter assemblies2110can be mounted. In the example shown, each mounting location2105defines a securement channel2108and a latch member2109(FIG.18). The latch member2109protrudes inwardly from an inner surface of the housing2101. The latch member2109includes a resilient tongue that defines a ramped surface opposite a shoulder. When an adapter assembly2110is inserted into the mounting location2105, the adapter assembly2110is pressed against the ramped surface of the latch member2109. The latch member2109is sized and configured to flex away from an adapter assembly2110when the adapter assembly2110is cammed along the ramped surface. The latch member2109flexes back to latch the shoulder against the adapter assembly2110when the adapter assembly2110clears the ramped surface.

Each adapter assembly2110includes a first surface2114and an opposite second surface2115(FIG.19). End surfaces2116extend between the first and second surfaces2114,2115. If the adapter assembly2110is configured to receive more than one connector arrangement ferrule on each side, then the adapter assembly2110also can include one or more dividing members2117extending between the first and second surfaces2114,2115to define the connection openings2111. In some embodiments, each adapter assembly2110also can define mounting flanges2118that extend outwardly from the end surfaces2116. In such embodiments, the securement channels2108defined by the housing portions2102,2104at the mounting locations2105are configured to receive the mounting flanges318of the adapter assemblies2110to aid in retaining the adapter assemblies2110within the housing portions.

In some embodiments, each housing portion2102,2104can accommodate one row of adapter assemblies2110. In the example shown, each portion of the panel module housing2101defines sufficient mounting locations2105to accommodate a row of three adapter assemblies2110. In other embodiments, however, the panel module housing2101can define greater or fewer adapter assembly mounting locations2105(e.g., greater or fewer adapter assemblies per row and/or additional rows).

Referring toFIGS.19-25, in certain embodiments, the printed circuit board2120also can include one or more presence sensors2126to determine whether or not a connector arrangement (e.g., connector arrangement2000ofFIGS.19-25) has been inserted into an adapter assembly2110. In one embodiment, the printed circuit board2120includes one presence sensor2126for each connection opening2111defined by each adapter assembly2110. In another embodiment, the printed circuit board2120includes one presence sensor2126for each connector arrangement that the adapter assemblies are configured to receive.

FIG.19is a perspective view of an example connector assembly in which an example adapter assembly2110is exploded from a printed circuit board2120. The adapter assembly2110defines four connection openings2111. The example printed circuit board2120includes four media reading interfaces2122and four presence sensors2126. In other embodiments, however, the board2120can include any suitable number of components.

In the example shown, the presence sensors2126are located inwardly on the printed circuit board2120from the corresponding media reading interfaces2122. In other embodiments, however, the board components can be arranged in any suitable configuration. In the example shown, the presence sensors2126include tactile pressure sensors. In other embodiments, however, other types of presence sensors (e.g., near field infra-red sensors, etc.) can be utilized.

A spring board assembly2130is arranged between the adapter assembly2110and the connection layer2120. The spring board assembly2130is arranged to actuate the respective presence sensor2126when a connector arrangement is inserted into one or more ports of the adapter assembly2110(e.g., seeFIGS.24and25). In some embodiments, each spring board assembly2130includes a frame member2131and at least one cantilevered arm2132(seeFIG.20). In certain embodiments, the spring board assembly2130includes a cantilevered arm2132for each connector arrangement to be received by the adapter assembly2110. In the example shown, the spring board assembly2130includes four cantilevered arms2132.

The free end of each cantilevered arm2132defines a ramped surface2133that protrudes in a first direction. Each cantilevered arm2132also includes a button or protrusion2134extending in a second direction. In one embodiment, the second direction is generally opposite the first direction. The distal end of each cantilevered arm2132is configured to flex (e.g., pivot) in the first and second directions. For example, in one embodiment, each cantilevered arm2132can define a section of reduced thickness adjacent the frame member2131to form a living hinge. In another embodiment, each cantilevered arm2132can be formed from a resilient material configured to enable flexure of the arm2132relative to the frame member2131.

The frame member2131can include one or more connecting sections2135by which the spring board assembly2130can be secured to the panel module2100. For example, the connecting sections2135can include one or more squeezable surfaces that fit above the adapter mounting flanges2118in the securement channels2108defined in the panel module housing2101(e.g., seeFIG.18). In the example shown inFIG.20, the connecting sections2135can define ramped surfaces2136that facilitate placement of the connecting surfaces2135into the securement channels2108. In other embodiments, the connecting sections2135can couple to the adapter assembly2110and/the connection layer2120instead of to the panel module housing2101.

The spring board assembly2130is configured to extend over the second surface2115of an adapter assembly2110. The second surface2115defines one or more openings2119sized and configured to enable the ramped surfaces2133of the cantilevered arms2132of the spring board assembly2130to pass through the second surface2115and to enter the connection openings2111of the adapter assembly2110. As shown inFIGS.23and24, the cantilevered arms2132of the spring board2130extend along an exterior of the second surface2115and the ramped surfaces2133protrude through the openings2119into the adapter assembly2110. The ramped surfaces2133face outwardly from the connection openings2111.

FIGS.24and25are schematic diagrams showing an example connector arrangement2150being inserted into a port of an example connector assembly2140. The connector assembly2140includes an adapter assembly2110, a printed circuit board2120, and a spring board2130. Embodiments of the connector assembly2140can be included within a panel module2100as described above. For ease and convenience, only the connector arrangement2150is shown being inserted. In use, another connector arrangement or a fiber optic connector without a storage device may already be contained within an opposite port.

The connector arrangement2150includes a connector body2151housing a ferrule2153, which carries a polished end face of an optical fiber (not shown). The connector body2151defines an end face2152through which the ferrule2153extends. The end face2152of the connector body2151is configured to interact with the ramped surface2133of the cantilevered arm2132of the spring board assembly2130to depress the arm2132. In one embodiment, the end face2152is configured to cam over the ramped surface2133to depress the arm2132so that the ramped surface2133does not contact the ferrule2153.

Depressing the ramped surface2133causes the arm2132to move away from the adapter assembly2110toward the printed circuit board2120(e.g., seeFIG.25). The button2134protruding from the arm2132is positioned above the tactile pressure sensor2126of the printed circuit board2120. Accordingly, depressing the ramped surface2133causes the button2134to contact and actuate the tactile pressure sensor2126. Positioning the button2134inwardly from the free end of the arm2132inhibits the button2134from pressing against the sensor2126with too great a force. If necessary, the arm2132can flex/bend to accommodate the pressure sensor2126when the ramped surface2133is depressed.

In the example shown inFIGS.21-25, each cantilevered arm2132of the spring board assembly2130extends between two adjacent connection openings2111defined in the adapter assembly2110. Accordingly, insertion of a connector body into either one (or both) of the connection openings2111depresses the arm2132of the spring board assembly2130and actuates the presence sensor2126. Such an embodiment may be useful when the adapter assembly is configured to receive duplex connector arrangements. In other embodiments, a cantilevered arm2132of the spring board assembly2130can extend into each connection opening2111.

In certain embodiments, the adapter assemblies2110can include adapter dust caps2170(FIG.22) mounted within the ports. In general, adapter dust caps2170define bodies sized to fit within or around alignment sleeves (e.g., split sleeves) housed within the connection openings2111. In one example embodiment, the adapter dust caps2170are generally cylindrical in shape. In some embodiments, the cantilevered arms2132of the spring board2130are sized and positioned to inhibit interaction with adapter dust caps2170. For example, the cantilevered arms2132can be configured and arranged so that insertion of an adapter dust cap2170does not depress the cantilevered arm2132to actuate the pressure sensor2126. In the example shown inFIG.22, the ramped surfaces2133of the cantilevered arms2132extend between adjacent connection openings2111. The cantilevered arms2132and/or the adapter dust caps2170are sufficiently narrow to inhibit contact between the cantilevered arms2132and the dust caps2170.

Referring now toFIGS.26-31, one or more panel modules2100can be arranged in a fiber panel system2200. The fiber panel system2200includes a support frame2210defining at least one opening2211for mounting one or more panel modules2100. In one embodiment, the support frame2210can form part of a chassis housing. The opening2211is defined by a first mounting member2212and a second mounting2213of the support frame2210. The opening2211can be further defined by a first connecting member414and a second connecting member2215of the support frame2210that interconnect the first and second mounting members2212,2213.

In the example shown, the opening2211is sized and configured to enable multiple panel modules2100to be mounted within the opening2211. In other embodiments, the support frame2210can define separate openings2211for each panel module2100. In the example shown inFIG.26, the support frame2210defines a second opening2211′ adjacent the first opening to enable the panel modules2100to mount to the support frame2210in two columns. The second opening2211′ also is defined by mounting members and connecting members. In other embodiments, however, the support frame2210can define any suitable configuration of openings to enable any desired configuration of panel modules2100.

The first mounting member2212of the support frame2210defines at least one slot2216and the second mounting member2213defines at least a pair of latching openings2217. In other embodiments, however, the first mounting member can define the latching openings2217and the second mounting member2213can define the slots2216. Each of the latching openings2217defines a “sideways L” shape including a base portion2217aand an extended portion2217b(FIG.30). The latching openings2217in each pair are oriented to face away from each other (i.e., the base portions2217aextend away from each other). In one embodiment, the latching openings2217of the second mounting member2213are further oriented to face the base portions2217aof the openings2217away from the slots2216of the first mounting member2212.

The support frame2210also can define indicia for identifying or conveying other information about the panel modules2100mounted thereto. For example, the support frame2210can include a series of labels2219arranged along one of the mounting members2212,2213. In the example shown, labels2219are provided along a center of the support frame2210between the two openings2211,2211′ (i.e., along the central mounting members).

In certain embodiments, the housing2101of each panel module2100includes a securement assembly to facilitate mounting the panel module2100to the support frame2210. In some embodiments, the securement assembly includes a guide arrangement2160(FIG.27) and a latching arrangement2170(FIG.28). In one embodiment, the guide arrangement2160is arranged at a first end of the panel module2100and the latching arrangement2170is arranged at a second end of the panel module2100. In other embodiments, however, the guide arrangement2160and latching arrangement2170can be positioned in any suitable configuration on the panel module2100.

The guide arrangement2160includes a base2161extending outwardly from the housing2101. In one embodiment, the base2161is integral with the module housing2101. In other embodiments, the base2161can be mechanically or chemically coupled to the module housing2101. The base2161defines a first side2167and a second side2168. At least one handhold2162extends outwardly from the first side2167of the base2161. In one embodiment, the handhold2162defines a grip region2163. The handhold2162can be manipulated by the user to move the panel module2100within the support frame2210.

A guide member2164protrudes outwardly from the second side2168of the base2161. The guide member2164includes an extension member2165and a stop flange2166coupled to an end of the extension member2165. The stop flange2166extends generally parallel with the base2161. An inner surface of the stop flange2166can define a ramped surface. The guide member2164is sized and configured to interact with one of the slots2216defined in the first mounting member2212of the support frame2210. For example, the extension member2165of the guide member2164is configured to slide within the slot2216so that the base2161abuts against one side of the frame2210and the stop flange2166abuts against the opposite side of the frame2210to secure the panel module2100to the frame2210. In one embodiment, the ramped inner surface of the stop flange2166may facilitate aligning the guide member2164with the slot2216.

The latching arrangement2170includes a base2171extending outwardly from the module housing2101and defining a first side2179and a second side2180. In one embodiment, the base2171is integral with the module housing2101. In other embodiments, the base2171can be mechanically or chemically coupled to the module housing2101. At least one handhold2172extends outwardly from the first side2179of the base2171. The handhold2172can be manipulated by the user to move the panel module2100within the support frame2210. In the example shown, two handholds2172are arranged on the first side2179of the base2171. In other embodiments, however, greater or fewer handholds2172can be arranged on the base2171.

The base2171also defines an opening in which a resilient tongue2173extends. The resilient tongue2173can be moved toward the first and second sides2179,2180from a position in which the tongue2173extends planar to the base2171. A release tab2174, which will be described in greater detail herein, extends outwardly from the resilient tongue2173on the first side2179of the base2171. In one embodiment, the release tab2174extends outwardly from an intermediate position on the resilient tongue2173. A latching stop2175extends outwardly from the resilient tongue2173on the second side2180of the base2171. In one embodiment, the latching stop2175extends outwardly from a free end of the resilient tongue2173.

The latching arrangement2170also includes at least one securement member2176extending outwardly from the second side2180of the base2171. In the example shown, the securement member2176generally defines an “L” shape protruding outwardly from the second side2180of the base2171. The securement member2176includes an extension member2177forming the extended portion of the “L” and a stop member2178forming the base of the “L”. In other embodiments, however, the securement member2176can define a “T” shape, a “J” shape, or another suitable shape. In the example shown, the two opposing securement members2176are arranged on the base2171. In other embodiments, greater or fewer securement members2176can be arranged on the base2171.

A panel module2100can be secured to the support frame2210using the guide arrangement2160and latching arrangement2170. In general, panel modules2100can be mounted to the support frame2210by inserting the panel modules2100into the opening2211defined by the support frame2210and sliding the panel modules2100along a latching axis D (FIG.29) toward the first mounting member2212of the support frame2210. In certain embodiments, the securement members2176of the latching arrangement2170are inserted into two of the latching openings2217of the second mounting member2213and the guide member2164of the guide arrangement2160is aligned with a corresponding slot2216of the first mounting member2212. The panel module2100is slid along the latching axis (e.g., along the length of the latching openings2217) to latch the panel module2100to the support frame2210as described herein.

FIGS.29-31show a first panel module2100A installed on the support frame2210and a second panel module2100B that is in the process of being installed on the support frame2210. As shown inFIG.30, the securement members2176of the latching arrangement2170of each panel module2100are inserted into the latching openings2217defined in the second mounting member2213. In the example shown inFIG.30, the base portion2217aof each latching opening2217is sized and configured to enable the stop member2178of one of the securement members2176to pass therethrough. For example, the securement members2176of the first panel module2100A shown inFIG.31have been inserted into the latching openings2217, but have not yet slid along the latching axis D. Accordingly, the first panel module2100A can still be pulled out of the opening2211of the support frame2210.

Sliding the panel module2100along the latching axis D toward the first mounting member2212causes the extension member2177of the securement member2176to slide through the extended portion2217bof the latching opening2217. The extended portion2217bof the latching opening2217is sized and configured to inhibit passage of the stop member2178therethrough. For example, the latching arrangement2170on the second panel module2100B holds the second mounting member2213of the support frame2210between the base2171and the stop members2178of the securement members2176. Accordingly, the second panel module2100B cannot be pulled out of the opening2211of the support frame410without sliding the second panel module2100B back along the latching axis D.

When the securement members2176are inserted into the latching openings2217, movement of the panel module2100A along the latching axis D is restricted (e.g., to the length of the latching opening2217). The latching stop2175on the resilient tongue2173abuts against an edge of the second mounting member2213. Sandwiching the edge of the second mounting member2213between the securement members2176and the latching stop2175inhibits movement of the panel module2100along the latching axis D.

As shown inFIG.31, the extension member2165of the guide arrangement2160of the first panel module2100A is aligned with a slot2216A defined in the first mounting member2212. A portion of the first side2167of the base2161extends over the first side of the support frame2210. Sliding the panel module2100A toward the first mounting member2212will slide the guide member2164into the slot2216A and secure the first mounting member2212between the base2161and the stop flange2166of the guide member2164. For example, the guide arrangement2160on the second panel module2100B holds the first mounting member2212of the support frame2210between the base2161and the stop flange2166. The extension member2165of the guide arrangement2160of the second panel module2100B extends through a slot2216B defined in the first mounting member2212.

To release the panel modules2100from the support frame2210, a user actuates the release tab2174on the resilient tongue2173. In the example shown, pressing on the release tab2174pivots the resilient tongue2173toward the first side2179of the base2171, which pivots the latching stop2175out of latching engagement with the edge of the second mounting member2213. When the latching stop2175is moved out of latching engagement with the second mounting member2213, the panel module2100can be slid along the latching axis D toward the second mounting member2213to align the securement members2176of the panel module2100with the base portion2217aof the latching openings2217. When the securement members2176are so aligned, the panel module2100can be removed from the opening2211defined in the support frame2210.

When attached to the support frame2210, the panel modules2100can be connected to a physical layer management network. For example, the support frame2210can be coupled to a chassis housing in which a processor (e.g., a programmable processor) is arranged. In one example embodiment, the processor is arranged on one or more printed circuit boards mounted within the chassis housing. The network interface2124of each panel module2100can communicatively couple (e.g., via a card-edge type connection, a connector-to-connector type connection, or a cable connection) to the printed circuit board(s) mounted within the chassis housing. For example, sliding the panel modules2100along latching axis D can slide the network interface2124of each panel module2100into a circuit board connector.

A number of embodiments of the invention defined by the following claims have been described. Nevertheless, it will be understood that various modifications to the described embodiments may be made without departing from the spirit and scope of the claimed invention. Accordingly, other embodiments are within the scope of the following claims.