Comtech EF Data CRS-400 - Manual (Page 64)

CRS-400 1:8 Redundancy Switch Revision 0
Remote Control MN/CRS400.IOM
48
Masking faults will prevent the switch from performing Auto mode functions when these
mod/demod faults are sensed, and it keeps the faults from being logged by the switch.
Unmasked mod/demod faults are logged in the switch events log for activated units.
A.3.5.1.2 (CONFIG, OPTS, MASKS) SWITCH ALARMS
SWITCH ALARM MASK: NONE
Å
PSU-A PSU-B
Æ
(ENTER)
To have the switch ignore an out-of-range voltage output condition for one of the power
supplies, use this option. Only one of the units can be masked at a time.
Normally, this mask is useful for operating with only one power supply, or if a supply
must be removed for service or replacement.
A.3.5.1.3 (CONFIG, OPTS, MASKS) AUDIO
AUDIO MASK: NONE SW-ALMS
MODEM-ALMS BOTH (ENTER)
This options controls which, if any, alarm types should cause an audible alarm (buzzer) to
sound when the switch detects the alarm condition. This option can be set for unmasked,
or switch and/or mod/demod alarms.
The buzzer is located behind the front panel. In addition, a relay closure to ground
activates on pin 20 of the System Alarms connector, so that other indicators can be
attached to the audible alarm.
A.3.5.2 (CONFIG, OPTS) SWITCH MODE
SELECT SWITCH MODE:
DEPENDENT INDEPENDENT
With the DEPENDENT mode setting, the switch will back up a faulted modulator or
demodulator with both the redundant modulator and demodulator.
With the INDEPENDENT mode setting enabled, the switch will back up a faulted
modulator only with the redundant modulator, or backup a faulted demodulator only with
the redundant demodulator.