Harris Intraplex ACS-160 Series - Test Equipment Use with T1 Multiplexer System; T1 Test Jacks

6-Testing & Troubleshooting ACS-160 Series & STL-160 Series T1 Mux Installation & Operation
Version 2.11, August 2011
Harris Corporation 6-13
Intraplex Products
Table 6-8. Indicator Lights in Drop and Insert Loopback (or DI-B CM-5RB) Test
CM-5RB Module
Indicator
Patch
Cord
Loopback
EqLB
Loopback
CM-5RB (DI-A and DI-B) Modules
TX OUT ON ON
RX IN ON *
ERR OFF OFF
YEL OFF OFF
BPV OFF OFF
AIS OFF OFF
FRM OFF OFF
LOOP ON ON
INT ON ON
LPBK
(DI-B
only)
OFF ON
CPU OFF OFF
Power
Supplies
NORMAL ON OFF
ALERT OFF ON
ALARM OFF OFF
* The RX IN indicator light on the DI-A CM-5RB module should be on. However, when the internal
equipment loopback is active, the RX IN state of the DI-B CM-5RB module depends on the signal
coming from Location 3, which has not yet been tested.
6.5 Test Equipment Use with T1 Multiplexer System
You can perform ACS-160 Series/STL-160 Series system tests at the T1 circuit level with the system
in service or out of service. You can also perform tests on individual channels within the system. The
next sections describe these test types.
6.5.1 T1 Test Jacks
A CM-5RB module has two pairs of bantam jacks (T1 IN and T1 OUT) to provide test access to the T1
input and output signals. Each pair consists of one equipment (EQUIP) and one monitor (MON) jack
(Figure 6-5).
Figure 6-5. T1 Test Jacks