Service and troubleshooting
8.28 EST3 Installation and Service Manual
Table 8-20: Local trouble pseudo points
Address Label Source Description
0612 Receiver Test - Line 1 3-MODCOM Line 1 test transmission to CMS failed
0613 Lo Batt Cut Off 3-PPS/M
3-BPS/M
3-BBC/M
Battery voltage below 19.5 Vdc when
on battery backup
0613 Receiver Test - Line 2 3-MODCOM Line 2 test transmission to CMS failed
0614 AC Brownout 3-PPS/M
3-BPS/M
3-BBC/M
AC line voltage below 96 Vac for
3-PPS or 196 Vac for 3-PPS/230
0614 RS-232 Channel 3-MODCOM Communication failure with RS-232
card on module
0615 Batt Trbl 3-PPS/M
3-BPS/M
3-BBC/M
1. Battery wiring open
2. Battery voltage below 24 Vdc
3. Battery internal resistance too high
(load test failure)
0616 Network_ClassA_CircuitA_Fail
ure_01_01
CPU CPU unable to receive data on data
riser circuit A
0617 Network_ClassA_CircuitB_Fail
ure_01_01
CPU CPU unable to receive data on data
riser circuit B
0616 Aux Pwr Ovld Ckt 2 3-PPS/M
3-BPS/M
3-BBC/M
1. Excessive load
2. Circuit shorted
0617 DSP Supervision 3-MODCOM The DSP chip on the module failed.
0617 Pwr Supply Fail 3-PPS/M
3-BPS/M
3-BBC/M
1. Cables between power supply and
monitor module loose or missing
2. Defective power supply or monitor
module
0618 Aux Pwr Ovld Ckt 1 3-PPS/M
3-BPS/M
3-BBC/M
1. Excessive load
2. Circuit shorted
0619 Drvr Pwr Supply Fail 3-PPS/M
3-BPS/M
3-BBC/M
1. Cables between power supply and
monitor module loose or missing
2. Defective power supply or monitor
module
0620 Demux Audio Input 3-ZAxx Digitized audio data missing
0620 Waiting for SDU Download 3-MODCOM Database download from the SDU is
in progress or was incomplete