GE Industrial Solutions CPS2500D +-190V - Manual (Page 39)

CPS2500D +/-190V Downstream System
Issue 4 January 2008 Installation 5 - 11
Diagnosing Abnormal States
(continued)
Diagnosing
Abnormal States Abnormal state:
Network Wiring Fault
Step Action
1 Observe the LEDs.
2 Does the display look like a combination of the states shown in
Figure 5-11: Network Wiring Fault?
3 Yes - Trace the fault back to the
5 pin protector and circuit where
it enters the cabinet using the
slot identifiers and circuit
identifiers as shown in example
Figure 5-12: Network Wiring
Faulty on Circuit 6B. The
problem resides outside the
CPS2500D system. Resolve the
wiring problem using the
standard procedures provided by
the network service provider. No - Continue to the next step of
Diagnosing Abnormal States.
Figure 5-11: Network Wiring Fault
QS882A
A B
OUT
IN
QS882A
A B
OUT
IN Green Red Red Red
Green
Input Voltage
Interrupted on
B Pair
Input Voltage
Interrupted on
Both Pairs
1 1
Figure 5-12: Network Wiring Faulty on Circuit 6B
Red
Green
Green
QS882A
A B
OUT
IN
1
QS882A
A B
OUT
IN
2
QS882A
A B
OUT
IN
3
QS882A
A B
OUT
IN
4
QS882A
A B
OUT
IN
5
QS882A
A B
OUT
IN
6