Configuring The G.703/9 Input Module; Terminal Block On The G.703/9 Input Module; Selecting Cas/Ccs Framing; Selecting Hdb3/Ami Framing - Symmetricom TSG-3800 Series User Manual

Table 5-5. Specifications, G.703/9 Input Module (Continued)
Signal Characteristic
Input Impedance
Monitor

Configuring the G.703/9 Input Module

The user can modify operations of the G.703/9 Input module by setting jumpers.
The jumpers are labeled TB1 through TB5.
blocks. Pin A is identified by the arrow.
.
Figure 5-5.

Terminal Block on the G.703/9 Input Module

Caution: To prevent ESD damage to the module, always observe
the precautions described in
page 61.

Selecting CAS/CCS Framing

You must configure the G.703/9 Input module to match the G.703/9 framing of the
input signal (CAS or CCS). To select CAS or CCS framing, set the jumper on TB5
as shown in Table
Table 5-6. Selecting CAS/CCS Framing
Framing Selection
CAS
CCS
Selecting HDB3/AMI Format
To select DB3 or AMI formatting, set the jumper on TB3 as shown in
Table 5-7. Selecting HDB3/AMI Framing
Framing Selection
HDB3
AMI
12778474-002-2 Revision F – March 2004
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75, 120, or 3.3 kΩ (jumper selectable)
Bantam jack, 860 Ω isolation
Properly Handling the
5-6.
TB5 Jumper Position
B to C
A to B
TB3 Jumper Position
A to B
B to C
Specification
Figure 5-5 illustrates one of the terminal
Modules, on
TSG-3800 User's Guide 147
Input Modules
G.703/9 Input Module
Table 5-7.