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255-700-447
D-33
PacketStar
®
PSAX 2300 Multiservice Media Gateway User Guide
, Issue 1
Release 9.0.0
Appendix D PSAX Module Features
Fiber-Optic Interface Modules
•
Single-mode (SM) module (23N73) is intended for long-reach applications,
typically between LANs. This module is frequently used to connect high-
speed LAN devices (such as routers) to an ATM network.
•
Multimode (MM) module (23N72) is intended for short-reach applications,
for example, interoffice or intraoffice sections of a local area network
(LAN).
Both versions of the module can operate in an OC-12c or an STM-4c mode.
Software Features
The 1-Port OC-12c/STM-4c 1+1 APS/MSP modules follow the ATM Forum
Traffic Management 4.1 standard of traffic prioritization.
Hardware Features
The 1-Port OC-12c/STM-4c modules have the optical specifications shown in
Table D-5.
1-Port OC-3c Module with AQueMan (20N12 (MM)/20N13 (SM)) or
Traffic Shaping (20N14 (MM)/20N15 (SM))
The 1-Port OC-3c with AQueMan (20N12 (MM)/20N13 (SM)) or Traffic
Shaping (20N14 (MM)/20N15 (SM)) modules provide a fiber optic interface
operating at the OC-3c rate in the concatenated mode of the SONET-defined
line rate of 155 Mbps.
The module is supplied with the following transmission types:
•
Single-mode (SM) module (20N13/20N15) is intended for long-reach
applications, typically between LANs. This module is frequently used to
connect high-speed LAN devices (such as routers) to an ATM network.
Table D-5.
1-Port OC-12c/STM-4c
Module Optical Specifications
Feature
Single-Mode
Multimode
Number of ports
1
1
Type of connector (two for each mod-
ule, 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)
500 meters (1,640 feet)
Line rate, per port
622.08 Mbps
622.08 Mbps
Optical wavelength (nominal value)
1,313 nm
1,330 nm
Transmitter minimum optical output
power
-15 dBm
-20 dBm
Transmitter maximum optical output
power
-8 dBm
-14 dBm
Receiver minimum optical input power
(average)
-28 dBm
-29 dBm
Receiver maximum optical input power
(average)
-7 dBm
-11 dBm