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
C
M
-5
R
B
(
DI
-A
an
d
D
I-
B
)
M
o
d
u
le
s
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
P
o
we
r
S
u
ppl
ie
s
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
Summary of Contents for ACS-163
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