Traffic Module Considerations
Following maximum output power values have to be guaranteed on channel interfaces:
l C-band 50 GHz grid capable DWDM interfaces: +6 dBm
l C-band 37.5 GHz grid capable DWDM interfaces: +6 dBm
On optical amplifiers an implemented safety method prevents the maximum optical
output power from exceeding the 1M limit.
For optical amplifiers, the following total output power monitoring threshold is defined:
l At transmit port: 20.8 dBm (with PD accuracy of ±0.5 dB lead to output range of 20.3 to
21.3 dBm)
l Laser Safety Information and Guidelines
l Class 1M Laser Product Warning
l General Information
l Supported Configurations
Alien Wavelength
If alien wavelengths (i.e., channels not originating from an ADVA traffic module) are
inserted into an FSP 3000 C optical layer (client side of an optical multiplexer), the TX
power or the external interfaces must not be higher than +6 dBm to be within laser class
1M power levels.
l Laser Safety Information and Guidelines
l Class 1M Laser Product Warning
l General Information
l Supported Configurations
Methods for Achieving Laser Safety
l Automatic Power Reduction — The automatic power reduction (APR) is a network
link-based safety method applied related to optical amplifier output ports. It is required
for protection in the case of continuity loss in an OTS layer fiber link and if the amplifier
total output power is to exceed the 1M hazard level. Hereby is the total power the sum
of the power in any one direction from all optical channels, the power from all pump-
lasers and the power from OSC. After power reduction, the remaining total power must
be within 1M hazard level.
l Laser Safety Information and Guidelines
l Class 1M Laser Product Warning
l General Information
l Supported Configurations
FSP3000 C Hardware Guide - R1.1 - Issue:A (12/09/2016) 349
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