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Optimux-1553
Fiber Multiplexers for 3 E3/T3 over STM-1/OC-3• STM-1/OC-3 terminal multiplexer for grooming high-order legacy traffic (TDM)
over SDH/SONET networks• Up to three E3 or T3 data channels multiplexed using a single hot-swappable card

Any Traffic over Fiber• Optional 1+1 redundant network interface (single-ended MSP/APS); 1+1
protection of E3/T3 tributaries and power supply for complete carrier-class
hardware redundancy and serviceability• Plug-and-play operability

Optimux-1553 is a unique STM-1/OC-3
terminal multiplexer for transport ofhigh-order legacy PDH traffic overSDH/SONET. Three E3 or T3 tributarychannels are mapped into a standard

channelized STM-1/OC-3 uplink, extending
the local loop up to 80 km (50 miles),while creating a transmission layer fullycompatible with regional and national
SDH/SONET networks.

The Access CompanyOptimux-1553
Fiber Multiplexers for 3 E3/T3 over STM-1/OC-3

Power supply and uplink modules in
Optimux-1553 can be backed up and arefield-serviceable. Uplink 1+1 single-ended
MPS/APS redundancy is supported incompliance with the G.841 andGR-253-CORE standards. Power supplies
are also backed up and are
hot-swappable. These features ensurethat Optimux-1553 has no single point offailure, and is fully compatible with carrierclass requirements.

Optimux-1553 is available with either
coaxial or fiber optic short/long haul uplinkinterfaces.

Setup, control, status monitoring, anddiagnostics information can be performed
using one of the following methods:

The unit provides high availability, andhigh-quality performance monitoring of
the traffic path, from the SDH/SONET
network to the customer premises.

•ASCII terminal connected to the DB-9control port•

Telnet host via the dedicated Ethernetport

The simplicity, compact size and low
power consumption of Optimux-1553
allow easy rack installation on bothcustomer premises and telecommunication
facilities.

•Network management station (NMS)
running RADview-EMS, RAD’sclient-server CORBA-based SNMP
network management application. NMS
is connected via the dedicated
Ethernet port•

RAD’s Web-based remote accessterminal application, via the dedicated
Ethernet port

•TFTP for software update and remoteconfiguration, via the dedicated
Ethernet port.

Figure 1. Optimux-1553 Back Panel Showing the Interface Ports

Data Sheet

Specifications
UPLINK (NETWORK)Interfaces
Electrical (Coax) – STS-3
Fiber Optic – STM-1/OC-3
Compliance
Bellcore GR-253-CORE,
Bellcore GR-499-CORE, ITU-T G.703,G.707, G.783, G.841, G.957, RFC 3592
Redundancy
1+1Line Rate
155.52 Mbps ±20 ppm
Copper Line Attenuation
Typically 12.7 dB at 78 MHz using
RG-59-B/U cable
Copper Impedance75Ω
Connectors
Electrical: BNC
Fiber Optic: ST, SC, FC, SC/APC

E3/T3 INTERFACE

SUPERVISORY & MANAGEMENT PORTS

Compliance
Bellcore GR-253-CORE,
Bellcore GR-499-CORE, ITU-T G.783, ITU-T
G.823,
RFC2496Control PortInterface: V.24/RS-232
Connector: DB-9, female
Format: asynchronous
Baud rate: 9,6 kbps, 19,2 kbps,
38,4 kbps, 57,6 kbps, 115,2 kbps,
autobaud detect

Data Rate
T3: 44.736 Mbps
E3: 34.368 Mbps
Line Code
B3ZS
Impedance
75Ω, unbalanced
Jitter
According to Bellcore GR-499-CORE andITU-T G.823
Connectors
3 pairs of unbalanced BNC connectors(one Tx and one Rx for each E3/T3
tributary channel)

Ethernet Ports
Interface: 10/100BaseT
Connector: shielded RJ-45
Mode of operation: autonegotiation,
full/half-duplex
ALARM RELAYRating
60 VDC max or 30 VAC max, at 0.5A max
Input Alarm
10 VDC min, 48 VDC max, at 0.5A max
Connector
Dry contact, DB-9 femaleLine CodeElectrical: CMIFiber Optic: NRZ scrambled
Specifications and Ranges
See Table 1

Figure 2. Optimux-1553 Units in a Point-to-Point Topology

Optimux-1553
Fiber Multiplexers for 3 E3/T3 over STM-1/OC-3

INDICATORSPower A, B
Green: Power is OKRed: Power fault
Off: No power
SystemTST (yellow):•

On: Unit is in test mode•

Blinking: Downloading new software

FLT (red): Access and control card is infault condition
ON A/B (green):•

On: The 3E3/3T3 card is active•

Blinking during auto-baud detect
processAlarm
MAJ (red):•

On: Major Alarm•

Blinking: Major Alarm + ACO buttonpressedMIN (yellow):•

On: Minor Alarm•

Blinking: Minor Alarm + ACO buttonpressedUplinkFront and Rear Panels:
SYNC A/B LOSS (red): Electrical/opticalsignal not present or out-of-frame
detected on uplink (A/B) respectively
AIS A/B (yellow): AIS signal detected onuplink A/B
Rear Panel only (on uplink module):
SIG (green): Signal detected on therespective uplink card
Ethernet(Rear Panel only)
100 (green):• On: operating at 100 Mbps
• Off: operating at 10 Mbps

LINK/ACT:••Green: Ethernet link integrity
Yellow: Traffic activity

Station Clock Interface(Rear Panel only)
OK (green): External valid E1/T1 clock
source exists on clock connector
E3/T3 Tributary Channels(Front Panel only)
SYNC LOSS (red):
Loss of signal detected on the respective
non masked channel
AIS (yellow):•On: AIS signal detected on therespective non masked channel•Blinking: The channel is masked andthe LED status for the maskedchannels’ parameter is set to Blink bythe user•

Off: The channel is masked and theLED status for the masked channels’
parameter is set to Off by the user OR
the channel is not masked and no Lossof Signal or AIS is detected on therespective channel.

Data Sheet

Table 1. Uplink Interface Options
Module Name(OrderingOption)

Wavelength

Fiber Type[nm]
OP-M/CX/155Transmitter
TypePower Coupled Receiver
into Fiber
Sensitivity

Typical Max. RangeConnector
Type

[μm]

[dBm]

[dBm]

[km]

[miles]-Copper cable ---135m

443 ftCoax interface
See Note 1

OP-M/SC/85L
OP-M/FC/85L
OP-M/ST/85L

850

62.5/125
multimode

Laser (VCSEL)-14 to -20

-26

2.0

1.2

SC, FC, ST

OP-M/SC/13M
OP-M/ST/13M

1310

62.5/125
multimodeLED-14 to -20

-31

2.0

1.2

SC, ST

OP-M/SC/13L
OP-M/FC/13L
OP-M/ST/13L

1310

9/125 single Lasermode-8 to -15

-31

20

12.4

SC, FC, STOP-M/SC/15L
OP-M/FC/15L
OP-M/ST/15L

1550

9/125 single Lasermode-8 to -15-31

20

12.4

SC, FC, ST

OP-M/SC/13LH
OP-M/FC/13LH
OP-M/ST/13LH

1310

9/125 single Laser (longmodehaul)

0 to -5-34

40

24.8

SC, FC, ST

OP-M/SC/15LH
OP-M/FC/15LH
OP-M/ST/15LH

1550

9/125 single Laser (longmodehaul)

0 to -5-34

80

49.7

SC, FC, ST

OP-M/SC/SF1

Tx: 1310
Rx: 1550

9/125 single Laser WDM
mode (singlefiber)-8 to -15-29

2012.4SC

OP-M/SC/SF2

Tx: 1550
Rx: 1310

9/125 single Laser WDM
mode (singlefiber)-8 to -15

-29

20

12.4

SCOP-M/SC/SF3Tx/Rx: 1310

9/125 single Laser (SF3)mode (singlefiber)-8 to -15

-27

20

12.4

SC/APC

Notes: 1. For copper cables (coax interface), a range of 135m is attainable when using RG-59 B/U (at 78 MHz, in accordance with the square root frequency law).
2. The ranges specified above were calculated according to the following typical attenuation rates (with a 3 dB margin): 3.5 dB/km for 850 nm multimode 0.4 dB/km for 1310 nm single mode
 0.25 dB/km for 1550 nm single mode

Optimux-1553
Fiber Multiplexers for 3 E3/T3 over STM-1/OC-3

DIAGNOSTICS
Uplink and Tributary Links
Local Loopback
Remote Loopback
GENERAL
Power
AC: 100 to 240 VAC (±10%), 50 to 60 Hz
DC: -48 VDC (-40 to -60 VDC)
Power Consumption
AC: 77 VA max, 0.4A max
DC: 37W max, 1A max
PhysicalHeight: 4.4 cm (1.75 in)
Width: 44.0 cm (17.3 in)Depth: 30.0 cm (11.8 in)
Weight: 5.0 kg (11.0 lb) max.
Environment
Temperature: 0°C to 55°C (32°F to 131°F)
Humidity: Up to 90%, non-condensing

Figure 3. Optimux-1553 Extending an SDH/SONET Network towards Remote Customers

Data SheetOrdering

SUPPLIED ACCESSORIES? Uplink connector:

STANDARD CONFIGURATIONS

ST

ST fiber

OP-1553/3E3T3/AC/R/SC/13L

SC

SC fiber

OP-1553/3E3T3/AC/SC/13L

FC

FC fiber

OP-1553/3E3T3/48/R/SC/13L

Note: For single fiber connection, only SC typeOP-1553/48/R

connectors are available. For 1310 nm multimodeOP-1553/3E3T3/AC/R/SC/13L/D
OP-1553/AC/R
SPECIAL CONFIGURATIONS

LED option, only SC and ST type connectors are+ Optical wavelength and transmitter
type (not relevant with CX option):
Electrical interface with coaxial
BNC connectors

131310 nm, multimode LED

13L

1310 nm, single mode,laser diodeOP-M/?/+
Uplink interface module only (see Table 1)

15L

1550 nm, single mode,laser diodeNote: Uplink modules and tributary modules are

13LH

1310 nm, single mode,
long haul laser diode

15LH

1550 nm, single mode,
long haul laser diode85L

850 nm, multimode VCSEL

SF1Transmit 1310 nm,
receive 1550 nm

SF2Transmit 1550 nm,
receive 1310 nm

SF31310 nm single wavelengthlaser

OP-1553/*/$/#/!/?/+/^
OP-1553-M/*/S
Additional tributary module
Note: Each module should be ordered separately.

ordered separately.

Legend* Tributary interface module:
Module with 3 E3/T3 links

2X3E3T3 Two 3 E3T3 modules$ Station clock:
STC

Optional station clock

Note: For tributary module redundancy, order twomodules. Each tributary module may be definedeither as E1 or T1 channels.

# Power supply:!

AC

100 to 240 VAC

48-48 VDC

AD

100 to 240 VAC power supply
plus redundant -48 VDC power
supplyRedundant power supply:
R

Redundant power supply of
the same typeDC adapter plug (when DC power supply isordered)
RM-34
Hardware kit for mounting one
Optimux-1553 unit into a 19-inch rackavailable.

CX

3E3T3

AC power cord (when AC power supply isordered)

Note: For single-fiber applications, a device with
the SF-1 connector should always be used opposite
the device with the SF-2 connector, and vice versa.
The SF-3 connector can be used on both sides ofthe link.

^Redundant STM-1 uplink(default = single uplink):
D

Redundant uplink for
unidirectional 1+1 protection

OPTIONAL ACCESSORIESCBL-DB9F-DB9M-STR
Control port cable
Power Supply
OP-1553-PS/AC: 100 to 240 VAC
OP-1553-PS/48: -48 VDC

Data Sheet
Optimux-1553
Fiber Multiplexers for 3 E3/T3 over STM-1/OC-3

FeatureOP-108L

OP-108/106

OP-134/125

OP-1032/1025

OP-45/45L

UplinkFiber Optic

Fiber Optic

E3, Fiber Optic

Fiber Optic

T3, Fiber Optic

Bandwidth108

108/106

34/25 or 134/125(Mbps)

1000

OP-1551

OP-1553

Copper,Copper,

STM-1/OC-3

STM-1/OC-345155

155(Proprietary)

Number oftrunks

4 E1

4 E1/4 T1

16 E1/16 T1

16 E1/16 T1

21 E1/28 T1

21/42/63 E1
28/56/84 T1

3 E3/3 T3

Ethernetsupport

9999–––

SpecialReduced power

Redundant,

Full bandwidth,

3xGbE User

Ring support

Full redundancy

Full redundancyfeaturesconsumption

Ethernet license
activationinterfaces(Optimux-45)

cost-effective

hot-swappable
uplinks

Card version

Works with

9

Works with––––for LRS-102/

OP-108C

OP-34C/OP-25C

MP-4100

International 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. 803424

The Access Company

179-100-06/11 (2.0) Specifications are subject to change without prior notice. © 1997–2011 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.

Table 2. Optimux Comparison Table