Data Sheet

MiRICi-E1T1
Intelligent Miniature Ethernet to E1/T1 Remote Bridge• E1/T1 connectivity to any Ethernet device with SFP MSA-compatible socket• Full duplex, E1/T1 wire-speed packet forwarding• GFP, RAD HDLC and cHDLC encapsulation• VLAN support according to 802.1p, including VLAN stacking (Q-in-Q) capabilities,
allowing traffic separation and prioritization• Fault propagation to LAN link
• Inband and out-of-band management for configuration, monitoring and diagnostics• I2C management interface for simple management integration with host devices

Connecting Fast orGigabit Ethernet LANs

MiRICi-E1T1 forwards Fast or Gigabit
Ethernet packets to a TDM-based WAN atfull duplex wire-speed, fully utilizing theexpensive E1 or T1 TDM bandwidth.

automatically requests one from the DHCP
server upon booting.

The TDM interface type (E1 or T1) isuser-configurable.

Application software can be downloaded
to MIRICi-E1/T1 via the central server,using TFTP.

The unit supports the following frame
sizes, including VLAN-tagged frames:•64–2016 bytes for Fast Ethernet•64–10000 bytes for Gigabit Ethernet.

over framed E1 orLAN traffic is transparently directed, thus
preserving the user LAN settings.

framed/unframed T1

All parameters are software-configurable
including transmit timing sources and dataformats.

links

MANAGEMENTThe unit can be monitored, configured,and tested using the following ports andapplications:•Out-of-band via the I2C channel (offthe SFP edge connector)•Inband via the Ethernet port using aWeb browser.

To facilitate integration of a new device
into an IP network, if no IP address has
been manually configured, MiRICi-E1T1

MiRICi-E1T1 sends SNMP traps for up toeight management stations.

LOS AND FAULT PROPAGATIONThe LAN link is deactivated and the linkstatus LED turns off if one of thefollowing user defined alarms is issued
and fault propagation is enabled:•LOS (Loss of signal)•

FDL (Facility Data Link)•

LOF (Loss of Frame)•AIS (Alarm indication signal)•RDI (Remote defect indication).

In addition, the above-listed error
conditions are propagated towards thehost by sending an electrical signal via theLOS pin on the MSA edge connector. TheLOS LED turns ON, visually indicating theLOS condition.

MiRICi-E1T1
Intelligent Miniature Ethernet to E1/T1 Remote Bridge

ENCAPSULATIONMiRICi-E1T1 employs the GFP, RAD HDLC
and cHDLC WAN encapsulation protocols.
FLOW CONTROL
A flow control mechanism is activatedwhen LAN traffic exceeds the WAN link
(E1, T1) capacity and the watermarks of
the internal frame buffer. Pause packets
are transmitted to the LAN port, halting
LAN traffic until the buffer is emptied tobelow the watermark limit.
QUALITY OF SERVICE (QoS)
MiRICi-E1T1 facilitates differentiatedservices on the same link according toEthernet or IP marking. Classification isbased on VLAN (802.1p) or DifferentiatedServices Code Point (DSCP) priority, whileclassification results are mapped totransmit priority queues. Priority queues
can be defined to be Strict Priority or
Weighted Round Robin (WRR).
DIAGNOSTICS AND LOOP DETECTION
Remote (RLB) and local loopbacks (LLB)
are used for physical layer
troubleshooting.
MiRICi-E1T1 detects loops on the LAN sideor WAN side by transmitting special loop
detection frames.
If a loop is detected on the LAN side, aloop detection alarm is sent.

If a loop is detected on the WAN side, theunit blocks the traffic, and only then aloop detection alarm is sent.
The unit also performs Bit Error Rate(BERT) diagnostic tests. MiRICi-E1T1
generates and detects pseudo-random
patterns and repetitive patterns from 1 to32 bits in length.
ETHERNET OAM
MiRICi-E1T1 provides single segment (link)
OAM based on 802.3ah, including
discovery, continuity check, and remotefault indication.
CLOCK OPTIONSMiRICi-E1T1 uses Tx clock sources for theinternal and receive clocks. Standardstatistics for 15 minute time intervals arecollected.
FLEXIBILITY
MiRICi-E1T1 operates opposite thefollowing devices using GFP, RAD HDLC
and cHDLC encapsulation:•••

RAD’s Egate-20, Egate-100 (centralEthernet gateway)
RAD’s RICi-16, RICi-E1 and RICi-T1
Third-party devices that support GFP,RAD HDLC and cHDLC encapsulation.

SFP ENCLOSURE
Housed in a Small Form Factor Pluggable(SFP) package, MiRICi-E1T1 complies with
the Multi-Source Agreement (MSA).
Running on power derived from the hostdevice, it requires no additional power
supply.
MiRICi-E1T1 is hot swappable and featuresa special release mechanism for easy
extraction from the SFP socket.
SFP CONFIGURATION ADAPTER
An optional configuration adapter module,
SFP-CA, is available for configuring
MiRICi-E1T1 by connecting it to a PC via aUSB port.
The configuration adapter is used forpreliminary configuration, such as
assigning an IP address for first use or
specifying the operation mode. It is also
used to download software to theMiRICi-E1T1 units.
POSSIBLE APPLICATIONSMiRICi-E1T1 can be used in the following
application:•••

Transparent LAN services over leasedlines
Remote branch connectivity over E1/T1lines
Connecting LANs over E1/T1 radio links
or in campus applications.

Figure 1. Providing Transparent LAN Services over Leased LinesData Sheet

T1 INTERFACEWAN PROTOCOLWAN INTERFACE

Number of Ports
1

Number of Ports
1, configurable as E1 or T1

ComplianceG.703, G.775, G.823, T1.107, T1.403

Encapsulation
GFP (G.8040, G.7041/Y.1303)
RAD HDLCcHDLCTx Clock
Receive or internal clock

Data Rate
1.544 Mbps

Connector
RJ-45

Line Code
B8ZS, AMI

E1 INTERFACE

Framing
Framed (ESF, D4), unframedSpecifications

Number of Ports
1Line Impedance
100Ω, balanced

ComplianceG.703, G.704, G.775, G.823

Cable Length (max)
Up to 1829m (6000 ft) for AWG 22 cable

Data Rate
2.048 Mbps

LAN INTERFACE

Line CodeHDB3, AMI

Type
Fast or Gigabit Ethernet port

Framing
Framed (G.732.N, G.732.N CRC), unframed

ComplianceIEEE 802.3

Line Impedance
120Ω, balanced

Edge Connector
SFP-based, MSA-compliant

Cable Length (max)
Up to 2500m (8202 ft) for AWG 22 cable

Frame Size
FE: 64–2016 Bytes
GE: Up to 10 kBytes (jumbo)

Figure 2. Physical Dimensions

GENERAL
LED Indicators
MiRICi-E1T1/FE: LINK (green)– Ethernet link status
MiRICi-E1T1/GbE: LINK/ACT (green)– Ethernet link status and activity
LOS (red) – E1/T1 loss of signal
Power
3.3V
Power Dissipation
1.25W
Environment
Temperature:
MiRICi-E1T1/FE:
Ambient: –40 to 70°C (–40 to 150°F)
Case: –40 to 78°C (–40 to 172°F)
MiRICi-E1T1/GE:
Ambient: –40 to 70°C (–40 to 150°F)
Case: –40 to 78°C (–40 to 172°F)
Humidity: Up to 90%, non–condensing
Physical Dimensions
Height: 12.4 mm (0.49 in)Width: 14 mm (0.55 in)
Depth: 74.1 mm (2.92 in)Weight: 15.0 g (0.5 oz)

Figure 3. SFP-CA Module

Data Sheet
MiRICi-E1T1
Intelligent Miniature Ethernet to E1/T1 Remote Bridge

MiRICi-E1T1/+

Legend+SFP port:
FE
Fast Ethernet
GE
Gigabit Ethernet

OPTIONAL ACCESSORIESSFP-CA
Configuration adapter for connecting
MiRICi-E1T1 to a PC

Table 1. MiRICi Family Product Comparison
MiRICi-E3/T3(Ver. 2.5)

MiRICi-E1/T1(Ver. 2.5)

Protocol type

GFP (G.8040, G.7041/Y.1303)
RAD HDLCcHDLC

GFP (G.8040, G.7041/Y.1303)
RAD HDLC
cHDLC

FramingG.832, G.751, unframed(E3)C-bit, M23, unframed (T3)

G.732.N, G.732.N CRC, unframed(E1)
ESF, D4, unframed (T1)QoS

VLAN priority (802.1p, strict priority, WRR)

VLAN priority (802.1p, strict priority, WRR)

Loop detection

Yes (LAN or WAN)

Yes (LAN or WAN)

Fault propagation

Yes (LOS, LOF, FEAC, RLOL, AIS, RDI)

Yes (LOS, FDL, LOF, AIS, RDI)

SNMP traps

Yes, up to 8 management stations

Yes, up to 8 management stations

FeatureInternational Headquarters
24 Raoul Wallenberg Street
Tel Aviv 69719, Israel
Tel. 972-3-6458181
Fax 972-3-6498250, 6474436
E-mail market@rad.com

www.rad.com

North America Headquarters
900 Corporate Drive
Mahwah, NJ 07430, USA
Tel. 201-5291100
Toll free 1-800-4447234
Fax 201-5295777
E-mail market@rad.com

Order this publication by Catalog No. 803789

513-101-01/11 (2.51) Specifications are subject to change without prior notice.  2007–2011 RAD Data Communications Ltd. The RAD name, logo, logotype, and the terms EtherAccess, TDMoIP and TDMoIP Driven,and the product names Optimux and IPmux, are registered trademarks of RAD Data Communications Ltd. All other trademarks are the property of their respective holders.

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