Cisco Systems ONS 15600 SDH manual DLP-F395 Change the STM-N Port ALS Maintenance Settings, 18-115

Chapter 18 DLPs F300 to F399

DLP- F395 Change the STM-N Port ALS Maintenance Settings

DLP-F395 Change the STM-N Port ALS Maintenance Settings

Purpose	This task changes the automatic laser shutdown (ALS) maintenance
	settings for the STM-N ports. This feature is available for STM-16,
	STM-64, and ASAP cards.
Tools/Equipment	None
Prerequisite Procedures	DLP-F181 Log into CTC, page 16-34
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Note For the default values and domains of user-provisionable card settings, refer to the “Network Element Defaults” appendix in the Cisco ONS 15600 SDH Reference Manual.

Step 1 In node view, double-click the STM-16, STM-64, or ASAP card where you want to change the ALS maintenance settings.

Step 2 Click the Maintenance > ALS tabs.

Step 3 Modify any of the settings described in Table 18-9by clicking in the field you want to modify. In some fields you can choose an option from a drop-down list; in others you can type a value or select and deselect a check box. The provisionable parameters are listed in the options column in the table.

Step 4 Click Apply. If the change affects traffic, a warning message appears. Click Yes to complete the change.

Table 18-9	STM-N Maintenance Settings
Parameter		Description	Options
Port number		(Display only) Port number	—
ALS Mode		Automatic laser shutdown mode. ALS	From the drop-down list, choose one
		provides the ability to shut down the TX	of the following:
		laser when the RX detects a loss of signal	•	Disable—Deactivates ALS.
		(LOS).
			• Auto Restart—(Default) ALS is
				active. The power is automatically
				shut down when needed and the
				laser 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.

	Cisco ONS 15600 SDH Procedure Guide, R8.0
October 2007		18-115