Comtech EF Data CRS-200 REDUNDANCY SWITCH User Manual

Page 34

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CRS-200

COMTECH COMMUNICATIONS CORPORATION

CRS-200 REDUNDANCY SWITCH - OPERATIONS MANUAL PAGE 32

ALARM MASK: MODEM-ALARMS

SW-ALARMS AUDIO (ENTER)

MODEM ALARM MASK: NONE

TX RX TX+RX (ENTER)

latter is not also faulted. If there is no fault, the backup holdoff

determines how long the switch will wait before performing the

actual backup, or switchover of traffic to the redundant modem.

When the switch is currently backing up a traffic modem, and

that offline modem’s fault clears, the switch will continue to

back it up unless another active modem becomes faulted. In this

case, the restore holdoff is the length of time that the originally

faulted modem must stay unfaulted before the switch will

automatically put it back online so that the redundant modem

is available to bridge the newly faulted modem. Both holdoffs

can be set from 2 to 99 seconds.

(CONFIG, OPTS)

ALARM MASK

The switch logs and reacts to both modem faults and its own

faults. Types of either may be masked using this sub-menu. In

addition, an audible buzzer can be enabled as an additional

indicator.

(CONFIG, OPTS, MASK)

MODEM ALARMS

The user is prompted to mask Transmit or Receive Traffic

faults (or both) from being reacted to by the switch. This

not only prevents the switch from performing Auto mode

functions when these modem faults are sensed, but also

keeps the faults from being logged by the switch. Note

that these selections are global to all the modems. If

masking of individual modem faults is desired, it should

be done directly on the modem. Unmasked modem

faults are logged on both active and inactive modems.

(CONFIG, OPTS, MASK)

SWITCH ALARMS

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