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Installation and Verification Manual
After 1 minute check that 'No Trouble' is displayed in the
Results window to confirm no errors have been detected.
9 Increase the Optical Attenuator setting to find the point just
before the occurrence of errors by observing the Errors LED
while adjusting attenuator. Record the additional attenuation
setting. (typically, this will be at least 1 dB). Press
<Run/Stop> to stop measurement.
10 Re-set Optical Attenuator to the setting noted in step 5
(providing –28 dBm output).
Set the Transmission Test Set's Receiver to display Optical
Power. Press <Smart Test>, choose Shortcuts > Optical
Power then press <Select>. Set Wavelength to 1310/1550 nm
as appropriate, and check that the optical power
measurement reads between:
Set the Transmission Test Set's Receiver to display
Frequency and check that the frequency measurement reads
between:
2488.3199 MHz and 2488.3201 MHz
11 Reduce the Optical Attenuator setting by a further 20 dB and
check the Receiver Optical Power result is between:
12 Press <Smart Test>, choose Shortcuts > Trouble Scan then
press <Select>.Press <Run/Stop> to begin measurement.
After 1 minute check that 'No Trouble' is displayed in the
Results window to confirm no errors have been detected.
Press <Run/Stop> to stop measurement.
13 Disable the Optical Attenuator then disconnect the Optical
signal from the Transmission Test Set Optical IN port and
connect to the Power Meter. Re-enable the Optical
Attenuator.
14 Check the Power Meter reading is between:
–30 dBm and –26 dBm
–10 dBm and –6 dBm
–8.5 dBm and –7.5 dBm
Performance Tests
109
3
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