User guide

CCU Hardware Reference Troubleshooting
CTI Products, Inc.
68-11843-105
17
The standard CIB-T Switch & LED Test Board may be used to test the functionality of the CCU
module. Switch and LED assignments appear below.
+
+ + - -
1 5
10 15 20 25
26
30 35 40 45 50
J1
J2
C1
TB1
P1
M/S 2
M/S 1
RPT1 RPT2
CMPT2
CMPT1
ECSRxT2
ECSRxT1
ECSTxT2 ECSTxT1
Mn1Mn2 Sb1
Sb2
RpOn1RpOn2 RpOff1
RpOff2
CmpA1CmpA2 CmpB1
CmpB2
RxNrm1RxNrm2 RxECS1
RxECS2
TxECS1
TxECS2
TxNrm1TxNrm2
FrcSel
CA-80704-110CIB-T Labeling for CCU Testing
M/S 3
RPT3
CMPT3
ECSRxT3
ECSTxT3
Signal names were shortened to fit them on the labels:
Main/Stby Tgl 1 M/S1 Rx Norm/ECS Tgl 1 ECSRxT1
Main/Stby Tgl 2 M/S2 Rx Norm/ECS Tgl 2 ECSRxT2
Main/Stby Tgl 3 M/S3 Rx Norm/ECS Tgl 3 ECSRxT3
Main Sel Mn1 Comp Rx Sel RxNrm1
Main Sel 2 Mn2 Comp Rx Sel 2 RxNrm2
Stby Sel Sb 1 ECS Rx Sel RxECS1
Standby Sel 2 Sb 2 ECS Rx Sel 2 RxECS2
Repeat Tgl 1 RPT1 Tx Norm/ECS Tgl 1 ECSTxT1
Repeat Tgl 2 RPT2 Tx Norm/ECS Tgl 2 ECSTxT2
Repeat Tgl 2 RPT3 Tx Norm/ECS Tgl 3
ECSTxT3
2
Repeat On RpOn1 Norm TX Sel TxNrm1
Repeat On 2 RpOn2 Norm TX Sel 2 TxNrm2
Repeat Off RpOff1 ECS TX Sel TxECS1
Repeat Off 2 RpOff2 ECS Tx Sel 2 TxECS2
Comp A/B Tgl 1 CMPT1 Force Sel FrcSel
Comp A/B Tgl 2 CMPT2
Comp A/B Tgl 3 CMPT3
Comp A Sel CmpA1
Comp A Sel 2 CmpA2
Comp B Sel CmpB1
Comp B Sel 2 CmpB2