Specifications

2-8
Cisco ONS 15216 EDFA Operation Guide
78-12818-01
Chapter 2 Technical Specifications
ONS 15216 EDFA1 External Features
– OFF: when either the pump laser bias or the pump laser temperature is in the specified range or
no +5 VDC is present
In the ON condition, the second pair of alarm relay contacts in the RJ-45 connector will change from
normally open to closed. The LED and alarm will automatically reset when the condition clears (see
the “Alarm Contact Closures” section on page 4-8 for additional alarm contact closure information).
• LOS LED
The yellow LED will turn on and off to reflect the following conditions:
– ON: when optical-input power to the ONS 15216 EDFA1 is below the loss-of-input threshold
(a LOS threshold decision occurs)
– OFF: when optical-input power is within the input threshold
In the ON condition, the third pair of alarm relay contacts in the RJ-45 connector changes from a
normally-open condition to a closed condition. The LED and alarm automatically reset when the
condition clears (see the “Alarm Contact Closures” section on page 4-8 for additional alarm contact
closure information).