Cisco ONS 15454 DWDM - Page 609

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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 11 Change DWDM Card Settings
DLP-G207 Change Optical Channel Threshold Settings for OPT-PRE and OPT-BST Amplifiers
Step 6 Click Apply. If the change affects traffic, a warning message displays. Click Yes to complete the
change.
Step 7 Return to your originating procedure (NTP).
Gain Degrade
High (dBm)
Shows the current value of the gain
degrade high threshold configured in the
card. This threshold applies only when
the amplifier is active and in constant
gain mode.
Gain Degrade High refers to the port’s
Gain value and is automatically
calculated by the TCC2/TCC2P and when
the amplifier is turned up.
The Gain Degrade High threshold is
linked to the Gain setpoint. Changing the
setpoint changes the Gain Degrade High
threshold. The threshold value is always
2 dB higher than the Gain Setpoint value.
APC can modify this value based on the
number of OCHNC circuits the amplifier
is managing and to compensate for
insertion loss due to fiber aging.
—
Gain Degrade
Low (dBm)
Shows the current value of the gain
degrade low threshold configured in the
card. This threshold applies only when
the amplifier is active and in constant
gain mode.
Gain Degrade Low refers to the port’s
Gain value and is automatically
calculated by the TCC2/TCC2P and when
the amplifier is turned up.
The Gain Degrade Low threshold is
automatically linked to the Gain Setpoint
that is provisioned. Changing the setpoint
changes the Gain Degrade Low threshold.
The threshold value is always 2 dB lower
than the Gain Setpoint value.
APC can also modify this value based on
the number of OCHNC circuits the
amplifier is managing.
—
Table 11-12 OPT-PRE and OPT-BST Card Amplifier Line Alarm Threshold Settings (continued)
Parameter Description Options