14-13
Cisco ONS 15454 Procedure Guide, R5.0
December 2004
Chapter 14 Add and Remove Nodes
NTP-A262 Add a Node to a Linear ADM
NTP-A262 Add a Node to a Linear ADM
Note Optical transmit and receive levels should be in their acceptable range as shown in the specifications
section for each card in Table 2-3 on page 2-15.
Note In a linear ADM configuration, two OC-N cards in 1+1 protection are connected to two OC-N cards in
1+1 protection on a second node. On the second node, two more OC-N cards are connected to a third
node. The third node can be connected to a fourth node, and so on, depending on the number of nodes
in the linear ADM. Slots 1 to 4 and 14 to 17 or Slots 5 to 6 and 12 to 13 can be used if connections
between nodes are consistent. For example, Slot 5 on the first linear ADM node connects to Slot 5 on
the second linear ADM node for the working path, and Slot 6 connects to Slot 6 for the protect path. The
working OC-N ports have DCC terminations, and the OC-N cards are in a 1+1 protection group.
Step 1 According to local site practice, complete the “NTP-A108 Back Up the Database” procedure on
page 15-4 for all the nodes in the ring.
Step 2 At the new node, complete one of the following procedures:
• If the node has not been turned up, complete all procedures in Chapter 4, “Turn Up Node.”
• If the node has been turned up, complete the “NTP-A35 Verify Node Turn-Up” procedure on
page 5-2.
Step 3 Verify that the new node has two OC-N cards with the same rate as the linear ADM. If the OC-N cards
are not installed, complete the “NTP-A16 Install the OC-N Cards” procedure on page 2-6.
Step 4 Complete “DLP-A73 Create a 1+1 Protection Group” task on page 17-81 for the two OC-N cards that
will connect to the linear ADM node.
Step 5 Complete the “DLP-A377 Provision Section DCC Terminations” task on page 20-61 for the working
OC-N card at the new node. Make sure to set the port service state in the Create SDCC Termination
dialog box to IS. (Do not create a DCC termination on the protect card.)
Note DCC failure alarms appear until you create DCC terminations in the linear ADM node and
connect the fiber during Step 12.
Purpose This procedure adds a single ONS 15454 node to the end of an
ONS 15454 linear add-drop multiplexer (ADM) network. If the linear
ADM carries traffic, you cannot add a node between two linear ADM
nodes using this procedure unless you delete and recreate the circuits.
To avoid deleting and recreating the circuits, use the “NTP-A312 Add a
Node to a Linear ADM Using the Wizard” procedure on page 14-14 to
add a node between two linear ADM nodes.
Tools/Equipment None
Prerequisite Procedures NTP-A38 Provision a Linear ADM Network, page 5-6
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Provisioning or higher
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