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5
Optical Power Calibration
Calibrating Optical Power
This section describes how to calibrate the ASA 312’s optical power. The procedures
vary depending on the ASA 312’s optical hardware configuration:
■
Single laser configuration
■
Dual laser configuration
■
OC-48 laser configuration
Required Equipment
The following equipment is required to perform this procedure:
■
ASA 312
■
Two 3-ft. single-mode, fiber optic cables
■
Variable optical attenuator
■
Optical power meter
■
A fiber optics cleaning kit
Before You Begin
Before performing Optical Power calibration, use a fiber optics cleaning kit to clean the
fiber optic ports on the ASA 312, the optical power meter, the optical attenuator, and the
fiber cables. Dirty optical ports will effect optical measurements.
Optical Power Calibration for a Single Laser
or Dual Laser ASA 312
The following procedures are applicable for OC-1, OC-3, and OC-12 optical interfaces.
During these procedures, you will:
■
First obtain the ASA 312’s initial optical power measurement
■
Calibrate four optical power ranges
NOTE
➤
If you have a dual laser ASA 312:
– Perform all procedures in this section using the 1310 nm laser
– Save the new calibration values for the 1310 nm laser
– Enable the 1550 nm laser, and then repeat all procedures in this section
– Save the new calibration values for the 1550 nm laser
➤
