Communication Server Large System Installation and Commissioning

Page 184 of 456 Connecting a system terminal or modem
NN43021-310 Standard 02.01 December 2007
3 At the local end, configure the modem.
Follow the manufacturer’s instructions to set the modem for 9600 baud,
autoanswer, dumb mode, command recognition OFF, and command
echo OFF.
4 At the local end, connect NT8D95 cables to:
• J21 on the I/O panel in the rear of the Core or Core/Network Modules
• the SDI port on the I/O panel in the rear of the Network module
5 At the local end, connect NT8D84 cables to the SDI Paddle Board at the
Core/Network backplane to the I/O panel in the rear of the cPCI Core/
Network Module.
6 At the local end, connect NT8D95 cables from the I/O panels to a
matching connector on the switch box.
a. If you are using an A0377992 ABCDE box, connect cables as
follows.
— Connect CPU 0 to connector A.
— Connect CPU 1 to connector B.
— Connect the SDI port to connector D (connector C is common).
7 At the local end, connect an NT8D95 cable from the switch box to the
modem.
8 At the local end, connect the cable from the modem to an RJ11 telephone
jack. If a cable is required, connect an NT8D46 cable to the modem and
to the RJ11 jack.
9 At the local end, configure the switch box as needed to communicate with
the COM2 ports.
• During normal operation, set the switch to the SDI port.
• For debugging, set the switch to the active CPU.
• For patch downloading, set the switch to the inactive CPU.
End of Procedure