Cisco 15216 EDFA2 Specifications download pdf (Page 141)

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.)

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Cisco 15216 EDFA2 Specifications Page 141