Drop And Insert Alarms; Common Major Alarms; Alarm Masks - Radyne OM20 Installation And Operation Manual

OM20 Universal Outdoor Modem
7.2.1.5

Drop and Insert Alarms

Alarm
Multiframe Lock
CRC Lock
T1 Signaling
E1 FAS (E1 Frame
Acquisition Sync)
E1 MFAS (E1 Multi-
Frame Acquisition Sync)
7.2.1.6

Common Major Alarms

Alarm
TERR FPGA CFG
CODEC FPGA CFG
+1.5V RX SUPPLY
+1.5V TX SUPPLY
+3.3V SUPPLY
+5V SUPPLY
+12V SUPPLY
+20V SUPPLY

7.2.2 Alarm Masks

The OM20 performs a high degree of self-monitoring and fault isolation. The alarms for these
faults are separated into the following three categories:

Active Alarms

Common Equipment Alarms

Backward Alarms
MN-OM20– Revision 5
The insert framer is not in sync.
An Insert CRC Fault occurred. Valid in T1-ESF, PCM-30, or PCM-
30C Modes.
An Insert T1 Yellow Fault occurred. Valid in T1-ESF, T1D4, or
SCL-96 Modes.
An E1 FAS Fault occurred. Valid in PCM-30, or PCM-30C, PCM-
31, or PCM-31C Modes.
An E1 MFAS Fault occurred. Valid in PCM-30, or PCM-30C,
PCM-31, or PCM-31C Modes.
Indicates an Interface Card FPGA configuration failure probably
caused by a missing, or wrong file.
Indicates Turbo Codec Card FPGA configuration failure probably
caused by a missing, or wrong file.
Displays the measured voltage of the 1.5 Volt Rx power bus located
inside the modem.
Displays the measured voltage of the 1.5 Volt Tx power bus located
inside the modem.
Displays the measured voltage of the +3.3 Volt power bus located
inside the modem.
Displays the measured voltage of the +5 Volt power bus located
inside the modem.
Displays the measured voltage of the +12 Volt power bus
located inside the modem.
Displays the measured voltage of the +20 Volt power bus
located inside the modem.
Maintenance and Troubleshooting
Possible Cause
Possible Cause
7–5