Log in to any node in each ring in the network and retrieve a map of the network which lists all the systems and how they are connected to each other. From the System View menu select Administration → OSI Routing Map or Administration → OSI Neighbor Map.

Verify that the system configuration is the same as specified on the work order or circuit order.

From work order or circuit order, determine the terminating (drop) nodes and the pass-through nodes for the service being established.

Important!

In ring configurations, use the following general rules for establishing cross-connections.

1. All cross-connections to/from the same STS-1 timeslot must be provisioned the same, either all VT1.5 or STS-1.

2. If all VT1.5s (DS1s) in an STS-1 are being passed through at a node in a VT1.5 path-switched ring, then the cross-connection may be provisioned as either a pass-through STS-1 or VT1.5. However, if you are dropping VT1.5s from the pass through node in the future or monitoring VT path faults, you should provision the pass-throughs as VT1.5 cross-connections.

See Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) TL1 Message Details, 365-372-328 for more detailed information on types of cross-connections, and restrictions regarding rates, circuit pack types, and VT granularity.

Log in to each node in the network and verify that each shelf is properly equipped for the service being established. From the System View menu select View → Equipment.

From work order or circuit order, determine the cross-connections to be made at each node associated with the service to be established. See Figure 10-1, Path protected OC-12 ring network (DS1 to DS1) with VT1.5 cross-connections and Figure 10-2, Path protected OC-12 ring network (DS3 to DS3) with STS-1 cross-connections for DS1/DS3 cross-connection examples.

Important!

Cross-connections supporting DS3 services are STS-1 cross-connections. Cross-connections supporting DS1 services may be either STS-1 or VT1.5 cross-connections. Use VT1.5 cross-connections for DS1 services if you expect to cross connect only some of the VT1.5 signals in the STS-1 channel. If STS-1 cross-connections are made at a shelf, there is a fixed mapping of all 28 VT1.5 cross-connections to a specific shelf group.

Starting at one of the terminating nodes for the circuit being established, at each node in the ring select View → Cross-Connections from the System View menu to verify that the cross-connections specified on the work order or circuit order may be made. If the cross-connections are already assigned to another service or improperly assigned, refer trouble to the organization responsible for facility design. Improperly assigned cross-connections may have to be deleted.

At all non-terminating nodes in the network, provision pass-through cross-connections. From the System View menu select Configuration → Cross-Connections, then use the Cross-Connection Wizard to make the UPSR Ring Add/Dropcross-connections. Select 2-Way Point-to-Point, Through for pass through cross-connections.

At the terminating (add/drop) nodes of the circuit being established, establish the terminating cross-connections. From the System View menu select Configuration → Cross-Connections, then use the Cross-Connection Wizard to make the cross-connections.

Important!

The channel mode provisioning feature provides In-Service, Automatic, or Not Monitored states for VT and STS channels similar to the port modes for DS1 and DS3 ports. At installation, or when a cross-connection is made to a point of termination, the channel is in the Automatic mode and alarming is suppressed until a valid signal is received. The channel must receive a good signal from either side of the ring to cause the channel to transition to in-service.

After all cross-connections have been made, verify that the channels have gone in service at each terminating node. From the System View menu at each terminating node, select View → Equipment.

Result:

The View Equipment window opens.

Alarms are not reported until the channel state transitions to in-service (IS) which happens only when a good signal is received. Cross-connections create connections to both sides of the ring. The channel state will transition once a good signal is received on either side of the ring.

Expand the details for the circuit pack being used. Select the required port, then click Select at the bottom of the window. Verify the port AID is correct at the top of the parameter display.

Under Port Data/Fault in the parameter display, verify the Port Monitoring Mode is IS (in service). If the Port Monitoring Mode is IS, then Stop, you have completed this procedure. Otherwise, perform one of the following:

• If the Port Monitoring Mode is NMON (Not Monitored),

  Perform the following:

  1. Click Close to exit this window. From the System View menu, select Configuration → Equipment. Expand the details for the circuit pack being used, select the required port and then click Select at the bottom of the window.

  2. Under the Fault Management section, select AUTO (Automatic) for the Port Monitoring Mode.

  3. Click Apply at the bottom of the window.

  4. Click Close to exit the window, then repeat this procedure from Step 9.

• If the Port Monitoring Mode is AUTO:

  Check the connections at the local cross-connect panel (or equivalent connection point).

Reference:

Alcatel-Lucent 1665 Data Multiplexer Extend (DMXtend) Alarm Messages and Trouble Clearing Guide, 365-372-326

End of steps