Specifications

3-5
Cisco ONS 15216 EDFA2 Operations Guide
78-13908-02
Chapter 3 Installation
Communications
LOS LED (Yellow)
The loss of signal (LOS) LED is yellow. This LED functions as follows:
• On: The optical input power to the ONS 15216 EDFA2 is below the loss of input threshold. (A LOS
threshold decision occurs.)
• Off: The optical input power is within the input threshold and/or no –48 VDC is present.
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.
Ethernet Socket LEDs (2)
Two LEDs are located at the top left and right hand sides of the Ethernet socket. These LEDs are both
green. These LEDs function as follows:
• If left Ethernet socket LED is on, the link is up.
• If right Ethernet socket LED is on, there is Ethernet traffic.
SC/UPC Optical Ports
SC/UCP optical ports are as follows:
• Optical input signal to be amplified (INPUT)
– Input must be between –27 dBm and +4 dBm
• Optically amplified output (OUTPUT)
• Optical monitored output signal (MON OUT)
– 1% tap of output or 20 dB below output signal
Safety Requirements
Warning Procedures that require the fiber connections to be open must only be performed by service personnel
trained in laser safety requirements. Use of controls or adjustments, or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
Warning Anyone working with the ONS 15216 EDFA2 must not allow their eyes or body to be exposed to the
laser beam or to a reflection from a mirror-like surface. Additionally, viewing the laser output with
certain optical instruments (eye loupes, microscopes) within a distance of 100 mm may pose an eye
hazard.
Warning In the event of a fiber cut or loss of connection and there is no input power, the ONS 15216 EDFA2 still
has –3.5 dBm of output power.
The SNMP and command-line interface (CLI) commands can be used to increase the accessible level of
laser energy, and necessary precautions must be taken to avoid exposure to laser energy when using
these commands.