NK502 PON Power Meter

The NK502 PON Network State Tester is designed for intelligent detection of optical network terminals in FTTH systems. It identifies online, idle, or faulty terminal states and analyzes fiber connectivity without requiring backend system access. Integrated with PON Optical Power Meter, VFL, and RJ45 testing functions, it provides accurate diagnostics, pass/fail threshold settings, and USB data export for efficient field maintenance and resource management.

Product Features

• Intelligently check the occupation or idle state of optical network terminals
• Detect optical fiber status at the end of the port, including disconnection or connector drop
• User-defined threshold value storage for testing
• Support PON optical power meter and VFL functions
• Pass / Fail threshold and calibration wavelength can be set
• Upload data via USB interface
• Integrated RJ45 sequence, length, and tracking functions
• Compact handheld design with color TFT display

Specifications

PON Terminal State Tester

Detection Functions
Online terminal
Broken fiber
Terminal failure
Large terminal loss
ONT no power
Optical card not inserted

Insert Loss
≤1.5dB

Connector
FC / SC / ST / UPC (APC optional)

PON OPM

1310nm (Upstream)
-35dBm ~ +10dBm

1490nm (Down)
-40dBm ~ +12dBm

1550nm (Down)
-40dBm ~ +25dBm

Unit
mW / dBm / dB (REF)

Power Accuracy
±0.5dB

Power Resolution
0.01dB

VFL

Wavelength
650nm ±20nm

Output Power
≥10mW

Mode
CW / 1Hz / 2Hz

Connector
FC / SC / ST

RJ45 Cable Length / Sequence / Tracking

Range
≤300m

Others

Display
3.5-inch TFT LCD, 320 × 480

Interface
Micro USB

Storage
≤1000 groups

Power Supply
Lithium Battery: 3.7V / 4000mAh
Adapter: 5V DC / 2A

Battery Life
Standby ≥20h
Measurement ≥12h

Operating Temperature
-10°C to +50°C

Storage Temperature
-40°C to +70°C

Relative Humidity
0–95% Non-Condensing

Dimensions
173mm × 82mm × 33mm

Weight
≤350g