HP 7000 dl Router manual Remote-alarm rai ais, Ais

SROS Command Line Interface Reference Guide E1 Interface Configuration Command Set

remote-alarm [rai ais]

The remote-alarmcommand enables transmission of a remote alarm. Use the no form of this command to disable all transmitted alarms.

Syntax Description

rai	Choose to send a remote alarm indication (RAI) in bit position 3 (Sa3).
ais	Choose to send an alarm indication signal (AIS) as an unframed all-ones signal.

Default Values

The default for this command is rai.

Command Modes

(config-e1 1/1)# E1 interface configuration mode.

Functional Notes

An E1 will respond to a loss of frame on the receive signal by transmitting a remote alarm to the far end to indicate the error condition. TS0 of an E1 contains the Frame Alignment Signal (FAS) in the even numbered frames. The odd numbered frames are not used for frame alignment and some of those bits are labeled as spare bits (Sa bits) in bit positions 4 through 8.

Usage Examples

The following example enables transmission of AIS in response to a loss of frame:

(config-e1 1/1)#remote alarm ais

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