Cisco ONS 15454 DWDM Installation And Operation Manual page 421

Chapter 9 Manage the Node
Step 5 In the Reference Lists area, you can change the following information:
Note
NE Reference
•
BITS 1 Out
•
BITS 2 Out
•
Step 6 Click the Provisioning > Timing > General tabs.
Step 7 In the BITS In section, you can change the following information:
Note
BITS In State
•
Coding
•
State
•
Framing
•
Sync Messaging
•
Admin SSM
•
Step 8 In the BITS In section, you can change the following information:
BITS Out State
•
Coding
•
Framing
•
AIS Threshold
•
LBO
•
Click Apply. Confirm that the changes appear; if not, repeat the task.
Step 9
Internal timing is Stratum 3 and not intended for permanent use. All ONS 15454s should be timed to a
Caution
Stratum 2 or better primary reference source.
Complete the
Step 10
Stop. You have completed this procedure.
September 2004
Reference lists define up to three timing references for the node and up to six BITS Out
references. BITS Out references define the timing references used by equipment that can be
attached to the node's BITS Out pins on the backplane. If you attach equipment to BITS Out
pins, you normally attach it to a node with Line mode because equipment near the external
timing reference can be directly wired to the reference.
The BITS Facilities section sets the parameters for your BITS1 and BITS2 timing references.
Many of these settings are determined by the timing source manufacturer. If equipment is timed
through BITS Out, you can set timing parameters to meet the requirements of the equipment.
"NTP-G103 Back Up the Database" procedure on page
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
NTP-G87 Change Node Timing Parameters
11-2.
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