Maintenance > ALS


The Maintenance > ALS subtab allows you to provision the automatic laser shutdown (ALS) on the OSC-CSM and OSCM card. ALS parameters control the circumstances when the OSC-CSM and OSCM lasers are turned off and turned back on.

Item

Description

OSRI

Optical safety remote interlock (OSRI) allows you to turn the OSC-CSM or OSCM laser on or off. When OSRI is set to On, the laser is turned off. If OSRI is set to OFF, the laser can be turned on according to the ALS mode.

ALS Mode

Allows you to provision the automatic laser shutdown:

  • Disable: ALS is off; the laser is not automatically shut down when traffic outages (LOS) occur.

  • Auto Restart: ALS is on; the laser automatically shuts down when traffic outages (LOS) occur. It automatically restarts when the conditions that caused the outage are resolved.

  • Manual Restart: ALS is on; the laser automatically shuts down when traffic outages (LOS) occur. However, the laser must be manually restarted when conditions that caused the outage are resolved.

  • Manual Restart for Test: Manually restarts the laser for testing.

Recovery Pulse Duration

(Display only.) The recovery laser pulse duration, in seconds, for the initial recovery optical power pulse following a laser shut down.

Recovery Pulse Interval

(Display only.) The recovery laser pulse interval, in seconds. This is the period of time that must pass before the recovery pulse is repeated.

Currently Shutdown

Indicates whether the laser is currently turned off, either Yes or No.

Request Laser Restart

If ALS Mode is Manual Restart or Manual Restart for Test, this check box is available for you to restart the laser after it has been shut down.

Note     Restarting a laser might be traffic-affecting.

Apply

Applies changes made to the fields in the tab.

Reset

Cancels any changes to the tab and returns the fields to their last-saved settings.

Help

Displays context-sensitive help.