User manual

Chapter 1. Introduction
61200.080L1-1 FXS+ Dual Voice Option Module 5
Physical Description
The FXS+ is an option module which plugs into the
option slot in the rear of the TSU 100; see Figure 1-1.
PORT X.3
DUAL FXS
PORT X.1
PORT X.2
Figure 1-1
FXS+ Dual Voice Option Module
The FXS+ rear panel includes a plastic plug over a cutout
for additional connectors. This allows a plug-on board
to be added to the FXS+ module. The PORT X.3
indication is linked to the port numbering philosophy of
the TSU 100 product family. The X represents the slot
number, and the .3 indicates the port number. For
the TSU 100 application, there is only one option slot.
Therefore the port designations for the two FXS voice
ports will be 1.1 and 1.2. If added, the plug-on board
port designation would be 1.3 and 1.4. These port
numbers will appear in the front panel LCD menu
displays.