Specifications

3-3
Cisco ONS 15216 EDFA2/EDFA2-A Operations Guide, R2.4
July 2004
Chapter 3 Installation
3.3 SC/UPC Optical Ports
e. The POWER (green) LED remains on if the Power Bus mode is duplex and both power supplies are
connected to valid power sources or if the Power Bus mode is simplex and the Power A terminal is
connected to a valid power source. Note that the POWER LED could flash for a few seconds while
the software determines the validity of the power sources. A continuously flashing POWER LED
indicates a Power Bus alarm.
f. The FAIL (red) LED state depends on alarm conditions. The LOS (yellow) LED state depends on
the condition of the optical input signal.
3.3 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 (MONITOR OUT)
– 1% tap of output or 20 dB below output signal
3.3.1 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 performing adjustments or procedures other
than those specified herein may result in hazardous radiation exposure.
Warning Class 1M laser radiation when open. 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 approximately –3.5 dBm of optical output power.
The TL1, SNMP, and command-line interface (CLI) commands can be used to increase the level of laser
energy. Necessary precautions must be taken to avoid exposure to laser energy when using these
commands.