F I N A L D R A F T - C I S C O C O N F I D E N T I A L
8-5
Cisco ONS 15216 EDFA2 Operations Guide
78-16033-01
Chapter 8 Provisioning Using TL1
Set Gain
The input power should be consistent with the input power measured during the optical connection
procedure. See the
“Optical Connection Procedure” section on page 3-3
for more information. The
output power value should be 22 dB greater than the input, assuming that the default gain setting is
22 dB.
Note
An input power higher than –5 dBm will return a Gain Out of Range alarm that can be cleared by
correctly setting the gain value. For more information, refer to
Table 2-2 on page 2-2
.
8.7 Set Gain
To ensure that the ONS 15216 EDFA2 output signal is received by the transceiver in the network
element, it is important that the gain is set correctly.
The desired output power per channel is dependent on the number of channels traversed in the amplifier.
The user sets the gain of the amplifier depending on the input power level, the network application, and
the required receiver specifications necessary for error-free operation. Gain range is provided in
Table 3-1 on page 3-4
.
To set the amplifier gain, use the ED-DWDM command (see
“ED-DWDM” section on page 9-17
),
according to the following syntax:
ED-DWDM:[<tid>]:<aid>:<ctag>:::[OVERALLGAIN=<gain>];
The gain is the desired gain multiplied by ten. For example, if the desired gain is 20 dB, the gain value
would be set to 200.
Example 8-7
Setting the Gain Using TL1
sidtidname:ONS15216 EDFA2> ED-DWDM::ALL:123:::OVERALLGAIN=200;
Note
Prior to changing or implementing gain changes, consult with the Cisco TAC to ensure proper network
operation.
8.8 Set Alarm Thresholds
Alarm thresholds are set so that the network operator can be notified when valid alarms occur via the
RJ-45 ALARM OUT and RJ-45 LAN ports on the front panel of the ONS 15216 EDFA2. (See
Figure 8-1
on page 8-6
.)
