T1 Connection Test; Figure 6-1 Pin-Outs For The T1 Test Cable - Motorola iDEN Site Controller System Manual

Gen 3 Site Controller System Manual

T1 Connection Test

68P80801E30-A 5/1/2002
The T1 connection test requires an external test set capable of generating a
Quasi Random Signal Sequence (QRSS) bit pattern. The test set must also
have the ability to perform a loop-back test.
T1 Custom Test Cable
A custom interface cable is required to connect the test set to the circuit
selected for testing. Use locally procured parts and the pin-out shown in
Figure 6-1 to assemble this cable.
1
9
2
3
11
TO/FROM
4
T1 TEST
12
SET
DB-15 MALE
CONNECTOR
Figure 6-1 Pin-outs for the T1 test cable
T1 Sest Setup
The following T1 test procedure uses the TTC Fireberd T1 test set.
Connect the 15-pin connector test cable to the T1 test set.
1.
Figure 6-2 shows this connection.
GROUNDED
SHIELD
1 (ring)
2 (tip)
3 n/u
4 (ring)
5 (tip)
6 n/u
7 gnd
8 gnd
Chapter 6 System Testing
T1 Connection Test
R1
T1
TO/FROM
R
SURGE
SUPPRESSOR
T
INPUT
RJ-48
MODULAR
PLUG
iSC059
031999JNM
6-17