M-212B PON Optical Power Meter is an upgraded version of M-212A PON power meter. It aims at the FTTx application and maintenance which not only can be used to test and estimate the PON signals at the same time, but also the normal power measurement and fault identification. It is a useful, essential and ideal tool for the construction and maintenance of the PON projects.

Features
Providing simultaneous measurement at all three wavelengths (1490nm, 1550nm&1310nm )
Burst mode measurement at 1310nm wavelength 
Large LCD screen with backlight function
10 minutes Auto-off function
Six calibration wavelength available when tested as Normal OPM(850,1300,1310,1490,1550&1625nm)
Added VFL Function for quick and efficient fault identification
Data upload via USB cable
1000 storage test records
10 different threshold sets; 
3 Colors LED light Green, Yellow or Red represent 3 types of signal conditions Pass, Warn or Fail
Added User self-calibration function in software which used to calibrate the PON module or set the threshold value
Added Factory Default function in software which enable all the customersˇ setting back to the factory setting

Specifications
PON module:
Model M-212B
1310 upstream measurement
Pass Zone(nm) 1260°1360
Isolation@1490/1550(dB) >40
Measurement Range(dBm) -40°+10
1490 downstream measurement
Pass Zone(nm) 1470°1505
Isolation @ 1550nm(dB) >30
Isolation@ 1310nm(dB) >40
Measurement Range(dBm) -40°+12
1550 downstream measurement
Pass Zone(nm) 1535°1570
Isolation at 1490nm(dB) >40
Isolation at 1310nm(dB) >40
Measurement Range(dBm) -40°+25
Measurement Accuracy
Connatural uncertainty(dB) ∮0.5
Linearity(dB) ∮0.1
Passing through insertion Loss(dB) <1.5
General Information
Detector Type InGaAs
Optical Connector Interchangeable FC/SC/ST
Fiber Type 9/125um
Display LCD:128*64
Measurement Unit dB/dBm/xW
Resolution (dB) 0.01
Operation Voltage(V) DC 3.3°5.5
Power Supply 3  AA1.5V battery
Working Hours (hr) 90 without backlight
Operation Temperature(℃) -10°60
Storage temperature(℃) -25°70
Weight(kg) 500g
Normal Optical Power Meter Module
Measurement Accuracy
Connatural uncertainty(dB) ∮0.25
Linearity(dB) ∮0.1
Measurement Range(dBm) -70°+6 or -50~+26
General Information
Measurement Unit dB/dBm
Resolution (dB) 0.01
Calibration Wavelength(nm) 850,1300,1310,1490,1550,1625
Detector Type InGaAs
Optical Connector FC/SC/ST Interchangeable
Fiber Type 9/125um
Working Hours (hr) 100 without backlight
2.3 VFL Module
Output Power(mW) 1mw
Wavelength(nm)