11
TEST PROCEDURES
SET/VIEW REFERENCE
Connecting the PON power meter to the FTTx network
Set Reference
To view optical power in dB measurement units, an
optical reference must be set for each wavelength.
To set an optical reference, a light source must first be
connected for whatever wavelength(s) need to be set.
Up to 3 wavelength references can be set
simultaneously.
Press and hold the
REF/Enter
button for 2 seconds to
set a reference for every wavelength that is currently
connected to the PON meter. The display will
automatically switch to dB measurement units.
View Reference
Press the
REF/Enter
button once to briefly view the
currently set reference levels for each wavelength.
Measures upstream
signals coming from
customer equipment
(ONT: 1310nm)
ONT
Measures downstream
signals coming from
CO/head-end equipment
(OLT: 1490 / VDO:1550nm)
OLT
---------------------
ONU:
1310nm
dB
OLT:
VDO:
1490nm
dB
1550nm
dB
- 0 27
- 0 73
+ 0 74
