Installing the Cross-Connect Panel 19
Practice 450-1011-201
Direct RS-232-C Connections
The Primary Processor and Applications Processors are each equipped with two
RS-232-C connectors on the rear panels for direct connection to RS-232-C
compatible devices. One connector has nine pins for direct connection to an ASCII
terminal. The second has 25 pins for connection to a modem. The connections are
typically used for initializing a new system and for diagnostic purposes, both of
which can be performed locally or remotely. To connect a modem to the 9-pin
connector, use the NT4G46EB cable adapter.
Note: You should make this type of connection only if you have authorization
from Northern Telecom.
To connect an RS-232-C device to a rear panel port, proceed as follows:
(1) Locate the RS-232-C cable and connect one end of it to the RS-232-C device.
You may want to refer to the manufacturer's documentation for assistance.
(2) If you are using the four-inch 9-pin to 25-pin pigtail cable, connect it to the
RS-232-C device.
(3) Connect the cable to the RS-232-C port at the rear panel according to Fig. 8-5,
tightening the screws on the connector with a flat-blade screwdriver.
