Figure 18-16 System Tilt Compensation Without A Roadm - Cisco ONS 15454 DWDM Installation And Operation Manual

18.8.2 System Level Gain Tilt Control
Figure 18-16
SPAN
The proper Tilt Reference value is calculated by MetroPlanner and inserted in the Installation Parameter
List imported during the Node Turn-Up procedure (see
Configuration File" task on page
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
is reported in the CTC OPT-PRE or OPT-BST/OPT-BST-E card view (Provisioning > Opt.Ampli.Line >
Parameters > Tilt Reference).
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
18-32
System Tilt Compensation Without a ROADM
= 25 dB
1
DCU
OPT-PRE OPT-PRE
G > 21dB
OPT-PRE
Unregulated Tilt
3-82). For both OPT-PRE and OPT-BST/OPT-BST-E cards, the
SPAN = 15 dB
2
OPT-BST OPT-BST
Tilt Reference
Provisioned Tilt
"NTP-G138 Import a Cisco MetroPlanner
Figure 18-17). The provisioned Tilt Reference Value
Chapter 18 Network Reference
=
0
August 2005