Measuring And Checking The Optical Output Power - Motorola GX2 EA1000C Series User Manual

Installation and Setup

Measuring and Checking the Optical Output Power

The following procedures for measuring optical output power and routine maintenance
of the GX2-EA1000C*/* should be performed by properly trained personnel. In all cases
they should be aware of and observe the following warnings associated with fiber optic
transmitters:
D A N G E R !
Laser Hazard! Invisible laser radiation when the module is operating and the interlock defeated. Avoid
direct exposure to the beam. Do not look into the optical connector or a fiber connected to the output
of a laser module. Laser output is invisible and eye damage can result.
C A U T I O N !
Handle fiber carefully and avoid sharp bends, strain, or pinching. Avoid contacting the highly polished
end of the exposed fiber at the connector by keeping the protective boot in place when practical.
Once the initialization process is complete, verify the optical output power of the GX2-
EA1000C*/*. Perform this verification using an optical power meter, the SDU, the
network management system, or the local access port. However, for initial installation, it
is recommended that you use the previously installed short optical interface jumper in
combination with an optical power meter to verify the optical output power.
To measure and check the optical output power from the GX2-EA1000C*/*:
1. Verify that the GX2-EA1000C*/* is correctly seated in the GX2-HSG* and that power
has been applied for at least five minutes.
2. Verify that the previously installed end of the optical interface jumper remains in the
GX2-EA1000C*/*.
3. Connect the other end of the optical interface jumper to an optical power meter.
4. Observe the optical output power in dBm or mW.
5. Verify the optical power of the unit in use by referring to Appendix A,
"Specifications."
6. If the measured power is less than the optical power noted in Appendix A, you may
need to repeat the cleaning procedure or reverify the optical power using an
alternative method.
7. After you verify the optical output power, disconnect the optical power meter and
make the appropriate fiber connections to close the transmission link.
GX2 EA1000C*/* Multi-Wavelength DWDM 1550 nm Laser Transmitter • User Guide
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