
104
Installation and Verification Manual
3
Performance Tests
Disconnect the Optical Attenuator Output from the Power
Meter and connect to the OmniBER OTN’s
Optical IN
Port
(51–622 Mb/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.
20
Ensure the OmniBER OTN is set to
TX>RX Coupled Mode
.
21
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.
22
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.
23
Re-set the 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:
–29 dBm and –27 dBm
Set the OmniBER OTN’s Receiver to display
Frequency
and
check that the frequency measurement reads between:
622.07999 MHz and 622.08001 MHz
24
Decrease the Optical Attenuator setting by a further 19 dB
and check the Receiver
Optical Power
result is between:
–10 dBm and –8 dBm
25
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.
panther3_iv.book Page 104 Wednesday, January 15, 2003 12:03 PM
Содержание OmniBER J7230A
Страница 2: ...sdh_Lynx2 book Page 148 Wednesday April 17 2002 12 49 PM...
Страница 10: ...8 Installation and Verification Manual panther3_iv book Page 8 Wednesday January 15 2003 12 03 PM...
Страница 172: ...170 Installation and Verification Manual panther3_iv book Page 170 Wednesday January 15 2003 12 03 PM...
Страница 173: ...sdh_Lynx2 book Page 148 Wednesday April 17 2002 12 49 PM...