Communication Server Large System Installation and Commissioning

Connecting a system terminal or modem Page 185 of 456
Communication Server 1000M and Meridian 1 Large System Installation and Commissioning
Figure 73
Modem to a switch box and SDI and COM2 ports (dual-column systems)
Rear View
553-A0137
Note: The A0377992 switch box and A0381391 modem can be used in this configuration.
NT8D95 cable
J21 on
I/O panel
Switch box
NT8D95
cables
J21 on
I/O panel
NT8D95
cable
SDI port on
I/O panel
Dumb mode modem
RJ11
jack
Remote end
Smart mode
modem
RJ11
jack
RS-232
cable
Modem cable
(or NT8D46)
Modem cable
(or NT8D46)
Public phone
network
Terminal
Core/Net 0
Core/Net 1
Network module