DS3


Use the DS3 subtab to view DS3XM-6 or DS3XM-12 loopback information.

Port

The port number.

Admin State

The port administration state. Choosing an administrative state from the drop-down list and clicking Apply changes the port's service state unless network conditions prevent the change. Admin states include:

  • IS-Puts the port in-service. The port service state changes to IS-NR.

  • OOS,DSBLD-Removes the port from service and disables it. The port service state changes to OOS-MA,DSBLD.

  • OOS,MT-Removes the port from service for maintenance. The port service state changes to OOS-MA,MT. For loopbacks, the OOS,MT admin state must be initiated.

  • IS,AINS-Puts the port in automatic in-service. The port service state changes to OOS-AU,AINS.

Service State

An autonomously generated state that gives the overall condition of the port. Service states appear in the format: Primary State-Primary State Qualifier, Secondary State. Port service states include:

  • IS-NR-(In-Service and Normal) The port is fully operational and performing as provisioned.

  • OOS-MA,DSBLD-(Out-of-Service and Management, Disabled) The port is out-of-service and unable to carry traffic.

  • OOS-MA,MT-(Out-of-Service and Management, Maintenance) The port is out-of-service for maintenance. Alarm reporting is suppressed, but traffic is carried and loopbacks are allowed.

  • OOS-AU,AINS-(Out-Of-Service and Autonomous, Automatic In-Service) The port is out-of-service, but traffic is carried. Alarm reporting is suppressed. The ONS node monitors the ports for an error-free signal. After an error-free signal is detected, the port stays in OOS-AU,AINS state for the duration of the soak period. After the soak period ends, the port service state changes to IS-NR.

Loopback Type

Configures a port for a Terminal loopback (Inward) or clears the current loopback (none).

Send Code

The Send Code column on the maintenance tab of a DS3XM-6 or DS3XM-12 port only applies to out-of-service ports configured for CBIT framing. You can choose No Code (the default) or Line Loop Code. Selecting Line Loop Code inserts a line loop activate FEAC in the CBIT overhead transmitting to the connected facility (line). This code initiates a loopback from the facility to the ONS 15454. Selecting No Code sends a line-loop-deactivate FEAC code to the connected equipment, which will remove the loopback. You can also insert a FEAC for the 28 individual DS-1 circuits multiplexed into a DS-3 circuit.

Inhibit FE Lbk

The DS3XM-6 or DS3XM-12 ports and multiplexed DS-1s initiate loopbacks when they receive FEAC Line Loop codes. If the Inhibit Loopback check box is checked for a DS-3 port, that port ignores any received FEAC Line Loop codes and will not loop back. The port can still be put into loopback manually using the Loopback Type column even if the Inhibit Loopback check box is selected. Only DS-3 ports can be configured to inhibit responses to FEAC loopback commands, individual DS-1 ports cannot inhibit their responses.

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.