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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
August 2005
Chapter 18 Network Reference
18.8.2 System Level Gain Tilt Control
Figure 18-16
System Tilt Compensation Without a ROADM
The proper Tilt Reference value is calculated by MetroPlanner and inserted in the Installation Parameter
List imported during the Node Turn-Up procedure (see
“NTP-G138 Import a Cisco MetroPlanner
Configuration File” task on page 3-82
). For both OPT-PRE and OPT-BST/OPT-BST-E cards, the
provisionable Gain Tilt Reference range is between –3 dB and +3 dB.
During the Automatic Node Setup (ANS) procedure, the Tilt value for the OPT-BST/OPT-BST-E or
OPT-PRE card is provisioned by the TCC card (see
). The provisioned Tilt Reference Value
is reported in the CTC OPT-PRE or OPT-BST/OPT-BST-E card view (Provisioning > Opt.Ampli.Line >
Parameters > Tilt Reference).
OPT-BST
OPT-BST
G
OPT-PRE
> 21dB
Unregulated Tilt
SPAN
1
= 25 dB
SPAN
2
= 15 dB
OPT-PRE
OPT-PRE
DCU
Tilt Reference
0
Provisioned Tilt
134396
=
Summary of Contents for ONS 15454 DWDM
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