Optical Transmitting Level Measurement; Figure 6-4 Example Of Measuring The Optical Transmit Level - Hitachi SD.LINK User Manual

6.5.3 Optical transmitting level measurement

Using a short optical fiber cable that is 1 m at the longest, measure the optical transmit level at the
transmitting end as shown in Figure 6-4. Optical transmit level measurement is not needed for a
transmission line that metes the requirement defined for optical receive level measurement.
At measurement, connect the optical fiber cables and the optic power meter by way of a
compatible connector adapter.
LQE530: Type SC connector (or Type 2SC connector)
Requirement: -14 dBm to -20 dBm
If the optical transmit level does not meet this requirement, replace the SD.LINK module.
Short optical fiber
cable (1 m or less)
Type SC (or 2SC) connector adapter
(included with the optical power meter
or sold separately)

Figure 6-4 Example of Measuring the Optical Transmit Level

Detach
Optical power meter
Wavelength: 1300 nm
6-11
6 MAINTENANCE