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Appendix D PSAX Module Features
Fiber-Optic Interface Modules
D-32
255-700-447
PacketStar
®
PSAX 2300 Multiservice Media Gateway User Guide
, Issue 1
Release 9.0.0
Software Features
The modules support ATM traffic shaping, and conform to af-tm-0121.000,
Traffic Management Specification 4.1 (see the appropriate PSAX module user
guide for more details).
Hardware Features
The 4-Port OC-3c/STM-1 modules have the optical specifications shown in
Table D-4.
1-Port OC-12c/STM-4c Module (23N72 (MM)/23N73 (SM))
The 1-Port OC-12c/STM-4c APS/MSP module (23N72 (MM)/23N73 (SM))
provides connection redundancy to convey data reliably for access applica-
tions. These modules provide a fiber-optic interface operating in the concate-
nated mode with a line rate of 622.08 Mbps.
The 1:1 protection implementation is compliant with the GR-253-CORE
standard and supports linear non-revertive 1:1 protection, in both bidirec-
tional and unidirectional modes.
The module is supplied with the following transmission types:
Table D-4. 4-Port OC-3c/STM-1 Module Optical Specifications
Feature
Module
OC-3c/STM-1 SM
OC-3c/STM-1 MM
Number of ports
4
4
Type of connector (two for each module,
transmit and receive)
SC
(snap-on
connector)
SC
(snap-on
connector)
Type of fiber optic cable
single-mode
multimode
Fiber optic cable reach (approximate,
depending on fiber makeup)
15 km
(9.3 miles)
2 km
(6,560 feet or 1.2
miles)
Line rate, per port
155 Mbps (SONET)
155 Mbps (SONET)
Line rate, module total
622.08 Mbps (SONET) 622.08 Mbps (SONET)
Optical wavelength (nominal value)
1,310 nm
1,310 nm
Optical input sensitivity
-31 to -8 dBm
-30 to -14 dBm
Optical output power
-15 to -8 dBm
-20 to -14 dBm
Transmitter minimum optical output
power (average)
-15 dBm
-20 dBm
Transmitter maximum optical output
power (average)
-8 dBm
-14 dBm
Receiver minimum optical input power
(average)
-31 dBm
-30 dBm
Receiver maximum optical input power
(average)
-7 dBm
-14 dBm
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