Specifications

3-5
Cisco ONS 15216 EDFA2/EDFA2-A Operations Guide, R2.4
July 2004
Chapter 3 Installation
3.4 Communications
For example, if the total input power is between –27 dBm and –5 dBm, expect an output power between
–5 dBm and 17 dBm.
Note Unless overridden by the user, the gain per channel is by default set to 22 dB by the ONS 15216 EDFA2.
Gain is fixed at 22 dB as long as total input power is less than or equal to –5 dBm. If your input power
is higher than –5 dBm, see the “4.7 Set Gain” section on page 4-5.
3.4 Communications
The ONS 15216 EDFA2 can communicate in the following ways:
• Alarm Out relay contacts (RJ-45)
• Alarm LEDs
• Serial interface (EIA/TIA-232)
• Serial interface connected to a modem
• LAN interface (RJ-45)
3.4.1 Alarm Out Relay Interface (RJ-45)
The ONS 15216 EDFA2 Alarm Out (RJ-45) port reports alarm status for the following:
• Loss or degradation of electrical power
• Laser pump overheating or excessive pump current, output power, gain, and case temperature
• Loss or degradation of optical network
These alarms can be connected to a network operations center (NOC) network management system
(NMS) using the following methods:
• Cisco ONS 15454 miscellaneous discrete input
• Central Office alarm panel/system
Table 3-2 provides the ONS 15216 EDFA2 RJ-45 alarm out pinout and alarm definitions.
Table 3-1 Gain Range
Gain Total Input Power (dBm) Total Output Power (dBm)
(dB) Min Max Min Max
22 –27 –5 –5 17
Table 3-2 Alarm Pinout and Definitions (RJ-45)
Relay Pinout Description
0 1 (0+) Loss of electrical power
2 (0–)