Connections For Data Transmission - Lucent Technologies DEFINITY Administrator's Manual

Installation
Connections for Data
Transmission
By using the COM 1 port on the Switch Module, you can establish
simultaneous data transmission between the off-premise location
and the on-premise location. Typically this involves a personal
computer (a "remote data terminal") at the off-premise location
communicating with an RS-232 server link on-premise (at the
DEFINITY ECS location).
NOTE:
The factory setting for the data transmission rate is 9.6 kbps. If the
user at the Remote Module changes the rate to 19.2 kbps, the
Switch Module rate will also change to 19.2 kbps. Any change must
be done from the Remote Module.
To connect the server at the on-premise location to the COM 1 port
of the Standalone Switch Module, use a straight-through, 9-pin RS-
232 cable (see Figure 3-4).
To connect the on-premise server to the Multi-Mount Rack, again
use a straight-through, 9-pin RS-232 cable. However, in this case
the cable connects to the DB9 connector on the back of the desired
Rack-Mount Module.
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Issue 3 July 1997