255-700-447
D-29
PacketStar
®
PSAX 2300 Multiservice Media Gateway User Guide
, Issue 1
Release 9.0.0
Appendix D PSAX Module Features
Fiber-Optic Interface Modules
~
Structured DS1 signal transport
~
Nx64 Kbps circuit emulation (where 1<=N<=24)
~
Channel-associated signaling (CAS) 1x56
•
AAL2 cell formatting for interworking with the DSP2x Voice Server mod-
ules.
The following feature is provided with limited support by the module:
•
Integrated services digital network with primary rate interface service (PRI
ISDN) with 64 Kbps clear channel capability for the D-channel
Hardware Features
The 1-Port Channelized OC-3/STM-1 CES modules have the optical specifi-
cations shown in Table D-2.
1-Port Channelized OC-3/STM-1 Unstructured CES/ATM Module
(23N75 (MM)/23N76 (SM))
The 1-Port Channelized OC-3/STM-1 Unstructured CES/ATM modules
(23N75 (MM) and 23N76 (SM)) have two operating modes:
•
The STM-1 mode offers 63 VC-12 (E1) channels for ATM services only.
•
The OC-3 mode offers 84 VT1.5 (DS1) channels for unstructured CES ser-
vices only.
Table D-2. 1-Port Channelized OC-3/STM-1 CES Module Optical Specifications
Feature
Module
Ch OC-3/STM-1 CES SM
Ch OC-3/STM-1 CES MM
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)
2 km (6,560 feet or 1.2
miles)
Line rate, per port
155 Mbps (SONET)
155 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)
-8 dBm
-14 dBm