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Verification.book Page 55 Monday, January 19, 2004 1:40 PM
Verification Manual
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Disconnect the optical attenuator output from the power
meter and connect to the OmniBER OTN's Optical IN port
(2.5 Gb/s). Ensure all optical connectors are clean and all
connections are tight with no twists in the optical cable. Set
the optical attenuator to Enable.
6 Set the OmniBER OTN to TX>RX Coupled Mode.
7 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.
8 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.
9 Re-set optical attenuator to the setting noted in
(providing –28 dBm output)
Set the OmniBER OTN'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:
–30 dBm and –26 dBm
Set the OmniBER OTN's receiver to display Frequency and
check that the frequency measurement reads between:
2488.3199 MHz and 2488.3201 MHz
10 Reduce the optical attenuator setting by a further 20 dB and
check the receiver Optical Power result is between:
–10 dBm and –6 dBm
11 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.
1
Performance Tests
step 4
55
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