Cisco Systems D200 manual Parameter, Description, Options, SDH Reference Manual, 19-15

Chapter 19 DLPs D200 to D299

DLP- D216 Change the STM-N Card ALS Maintenance Settings

	Table 19-2	STM-N Maintenance Settings
	Parameter		Description	Options
	Port number		(Display only) Port number	—
	ALS Mode		Automatic laser shutdown mode.	From the drop-down list, choose one of the
			ALS provides the ability to shut	following:
			down the TX laser when the RX	• Disable—Deactivates ALS.
			detects a loss of signal (LOS).
				• Auto Restart—(Default) ALS is
				active. The power is automatically shut
				down when needed and automatically
				tries to restart using a probe pulse until
				the cause of the failure is repaired.
				• Manual Restart—ALS is active, but
				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		Sets the recovery laser pulse	Numeric. For the default values and
	Duration		duration, in seconds, for the initial,	domains of user-provisionable card
			recovery optical power pulse	settings, refer to the “Network Element
			following a laser shutdown.	Defaults” appendix in the Cisco ONS 15454
				SDH Reference Manual.
	Recovery Pulse		Sets the recovery laser pulse	Numeric. For the default values and
	Interval		interval, in seconds. This is the	domains of user-provisionable card
			period of time that must past before	settings, refer to the “Network Element
			the recover pulse is repeated.	Defaults” appendix in the Cisco ONS 15454
				SDH Reference Manual.
	Currently		(Display only) Displays the current	Numeric. For the default values and
	Shutdown		status of the laser.	domains of user-provisionable card
				settings, refer to the “Network Element
				Defaults” appendix in the Cisco ONS 15454
				SDH Reference Manual.
	Request Laser		If checked, allows you to restart the	Checked or unchecked
	Restart		laser for maintenance.
			Note Restarting a laser might be
			traffic-affecting.
Step 4	Click Apply. If the change affects traffic, a warning message displays. Click Yes to complete the change.
Step 5	Return to your originating procedure (NTP).

	Cisco ONS 15454 SDH Procedure Guide, R7.2
October 2007		19-15