Comtech EF Data SMS-458B - Manual (Page 58)

SMS-458B Modem Protection Switch Revision 2
Operation MN/SMS458B.IOM
3–22
3.4.6.1 Modulator Operation Fault
The fault menu displays MOD fault(s) when a modulator backup switching operation
failure occurs. The messages will be as follows:
BK-UP FAULT MOD X
(where X = 1 to 4)
3.4.6.2 Demodulator Operation Fault
The fault menu displays DEMOD fault(s) when a demodulator backup switching
operation failure occurs. The messages will be any of the following:
BK-UP FAULT DMD X
ALL DMDS D/L X FAULTED.
(where X = 1 to 4)
(where X = 1 to 4)
3.4.6.3 M:N Faults
The fault menu displays M:N fault(s) when a communication, configuration, setup,
and/or power supply failure occurs. The messages will be any of the following:
MODEM X COMM FAILURE
MODEM B1 COMM FAILURE
CONFIG VERIFY ERROR M (or D) X
CONFIG VERIFY ERROR BM (or BD) 1
BK-UP M (or D) 1 NOT COMPATIBLE
PRIME M (or D) X NOT COMPATIBLE
NO ADDRESS FOR PRIME X
*NO ADDRESS FOR C/U X
NO ADDRESS FOR BK-UP 1
*NO ADDRESS FOR C/U B 1
NO INTERFACE FOR PRIME X
NO INTERFACE FOR BK-UP 1
NO D/L FOR DMD X
NO CONFIG FOR PRIME M (or D) X
NO CONFIG FOR BK-UP M (or D) 1
+12V FAILURE
-12V FAILURE
+5V FAILURE
POWER SUPPLY 1 FAULT
POWER SUPPLY 2 FAULT
Where X = 1 through 4
Note: These faults appear only if an external channel unit is selected.