Table of Contents
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Chapter 2 Module Description
Software Features
Software Features
Module Placement Requirements
Hardware Features
General Hardware Features
®
8-Port Voice 2-Wire Station Module User Guide, Issue 1
PacketStar
2-2
The 8-Port Voice 2-Wire Station module can be used to establish a permanent
virtual circuit (PVC) on a voice circuit that originates on the same module.
This module also provides private-line automatic ring-down (PLAR) service
for the PVC. PLAR provides a point-to-point private line between two tele-
phone sets. If either station goes off-hook, the other one automatically rings.
The ringing will stop when the called station goes off-hook or the calling sta-
tion goes back on-hook. The PLAR service provides 20-Hz ring-down, loop-
start supervision, and no signalling. The module also supports FXS service via
a PVC connection with a 4-Port Voice 2-Wire Office module. This connection
enables a foreign exchange (FXO) voice service to be transmitted across an
ATM network. With FXO service, the voice switch provides dial tone, ringing,
and digit translation, which are not provided by the ATM network.
You may install the 8-Port Voice 2-Wire Station in any I/O slot of any PSAX
Multiservice Media Gateway chassis intended to contain I/O or server mod-
ules. In typical applications, this module is used with the 4-Port 2-Wire Office
module (see the appropriate module guide for other configuration con-
straints).
The 8-Port Voice 2-Wire Station module supports these hardware features:
• Number of ports: 8
• Connector type: RJ-11
• Ringing frequency: 20 Hz
• Termination impedance: 600 Ohms
• Signaling: none
• Supervision: loop start
Table 2-1 shows the general physical hardware and environmental specifica-
tions for the PacketStar PSAX I/O and server modules.
Release 8.0.0
255-700-261
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