
12778474-002-2 Revision F – March 2004
TSG-3800 User’s Guide 257
Output Modules
RS-422 Selective Rate Clock Module
Signal Connections
Input Signals
The RS-422 Selective Rate Clock module automatically operates from any framer
unit configuration. The module detects the input from the framer unit and divides it
by the appropriate number to generate an 8 kHz signal. Each of ten independent
synthesizers is locked to this frequency and can be programmed to the selected
output frequency for that particular port.
Output Signals
The output signals are available at the 50-pin connectors located on the rear panel
of the shelf.
Table 7-37
provides the tip and ring pin connections for each port. Refer
to
Making Output Signal Connections
, on page 56, for more information.
Operational Check
When the RS-422 Selective Rate Clock module is installed and power is applied to
the shelf, all LEDs and seven segment displays turn on for a lamp test.
Caution:
To prevent damage to the unit and to insure proper
operation, unused connections must be left open .
Table 7-37. Output Connections
Port
Tip Pin
Ring Pin
1
26
1
2
27
2
3
28
3
4
29
4
5
30
5
6
31
6
7
32
7
8
33
8
9
34
9
10 (A)
35
19
Note:
If any display fails to turn on, the unit will not give correct
indications and should be returned for repair.
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