EXFO PPM-350C PON Power Meter - Manual (Page 19)

PPM-350C 13
4 Configuring Thresholds,
Correction Factors,
Wavelength List, and
Storage Details
Your PPM-350C PON Power Meter has been configured by EXFO with predefined
information:

Threshold sets that you use in FTTx mode. Up to 10 sets are available.
A threshold set consists of the number of wavelengths (2 or 3) depending on
your unit. For each wavelength, you can select the pass, warning and fail
criteria.

Correction factors for the FTTx mode and OPM mode. These are set to 0 dB
since they were properly calibrated at EXFO.
Correction factors are added to the measured values. For this reason, once the
correction factors are applied, your PON Power Meter may display “HI” or “LO”,
indicating the power levels are no longer within the unit’s power limits.
If you need to define correction factors of more than 1 dB or less than –1 dB to
compensate for inaccuracies, it may be a good idea to send your PON Power
Meter for recalibration (see Recalibrating the Unit on page 27). This will ensure
the results remain accurate.

A wavelength list consisting of 1310 nm, 1490 nm and 1550 nm for OPM
operations. This list may contain up to 40 wavelengths (from 1260 nm to
1650 nm)

Predefined storage information used in FTTx and OPM operations such as OLT
names, ONT names and LOC ID names.
You may customize these parameters using the Handheld Data Transfer (HHDT)
software provided on your CD.
The Handheld Data Transfer enables you to create new threshold sets and
correction factors, define your list of favorite wavelengths, as well as set storage and
job options for better data management, or modify values retrieved from your PON
Power Meter. You can configure your PPM-350C with up to 32 OLTs, 255 ONTs,
16 LOCs and 32 JOBs. For more information, refer to the Handheld Data Transfer
online help.
I
MPORTANT
Thresholds, correction factors, wavelength list, as well as storage
and job options will be transferred to your unit. Previous values will
be lost.