PERFORMANCE VERIFICATION TESTS
KI23400/KI27400 UM-2
-
82 -
- PC Low Reflection Terminator
- APC Low Reflection Terminator
1. Very carefully, clean all the optical connectors to be used,
including ORL port of the instrument.
2. Re-set the meter to factory ORL defaults by selecting [Power], [
], [Default] and [Set] to store
3. To display ORL, press [Return Loss] and [-/+] to select the active
λ
, e.g. 1310nm.
4. With nothing connected to the ORL port, note the reading:
reading between -13.76 dB RL and -14.76 dB RL is within
calibration specification. This is ORL measured on instrument
connector.
Repeat this step for 1550nm
5. Plug the PC Low Reflection Terminator into the ORL port and note
down the reading.
For single mode instruments, reading between -
35 and ‘Lo’ dB RL
indicates terminator and instrument are working correctly.
6. To verify the supplied PC-APC test lead and APC Low Reflection
Terminator, plug the PC end of the test lead into the ORL port and
the APC terminator into the far end of the test lead.
The reading should meet limits for single mode instruments
specified in step 5 above.
Figure 16A.Test set up for ORL verification test
ORL Verification Test for KI23400 instrument with APC
connector, ORL port
For this test you will need standard accessories supplied with the
unit:
PC/APC test lead, multimode or single mode
PC Low Reflection Terminator
APC Low Reflection Terminator
1. Very carefully, clean all the optical connectors to be used,
including ORL port of the instrument.
ORL
port
ORL
port
PC
Terminator
port
PC end of
test lead
APC end of
test lead
APC
Terminator
