CX41 TDR and CX42 DMM Time Domain Reflectometer and Digital Multimeter for the Outside Plant

The CX41 is a small, ultra-portable, and budget-friendly Time Domain Reflectometer (TDR), ideal for Outside Plant (OSP), and Hybrid Fiber Coax (HFC) network installation and maintenance. Its accurate time-of-flight (Delay) measurement mode makes it a must-have tool for GNSS antenna feed installation and 1PPS precision timing distribution, among other applications.

The CX42 is a budget friendly and ultra portable telecom grade Digital Multimeter suitable for the Outside Plant.

Key Features

CX41 TDR

• Fault identification and location
• Cable length verification
• Direct cable delay measurement in nanosecond (no estimate conversion required)
• One touch automatic mode for a quick test
• Manual mode for detailed TDR trace analysis
• DC voltage measurement for line power verification*
• AC voltage measurement for induced foreign voltage detection*
• Simple user interface that saves time on the job
   

Precision Timing Applications

• Accurate direct Cable Delay Measurement in nanoseconds, independent from VP% values
• Ideal for GNSS Antenna Feed Documentation
• Antenna Cable Delay for PRTC timing accuracy compensation
• Coaxial cable delay compensation for 1PPS timing distribution

* Telco Version

CX42 DMM

• DC voltage measurement for line and equipment power verification and foreign voltage detection
• AC voltage measurement for induced foreign voltage detection
• Resistance measurements for cable insulation verification and short detection
• DC and AC current
• Capacitance measurements for verifying cable balance
• Simple user interface that saves time on the job

specs

CX41 TDR

• Telco (UTP) Version:
  • Test port: 2 mm banana
  • Range: 3.6 km (12 kft)
• Coaxial version:
  • Test port: F or BNC
  • Range: 1.5 km (5 kft)
• Accuracy:
  • For length mode: 1% of selected range or 1m (3ft)
  • For nS mode: ±0.002% ±1 nS
• Minimum distance resolution: 0.025m (0.08 ft)
• Cable delay resolution: 1 nS
• Velocity factor: Adjustable to 99%
• Pulse width: 10 nS to 10 µs (automatic with range)
• Impedance: 50, 75, 100, 120 ohms
• DC voltage range: 300V*
• AC voltage range: 200V*
• Dimensions: 129 x 61 x 39 mm (5.1 x 2.4 x 1.5 in)
• Weight: <450 grams (<1 pound)

* Telco Version

CX42 DMM

• DC voltage range: 300V; accuracy 2%, ±1V
• AC voltage range: 250V; accuracy 2%, ±1V
• Resistance: 0Ω to 999 MΩ; accuracy 3%, ±1Ω
• AC loop current range: 80 mA; accuracy 2%, ±1 mA
• DC loop current range: 110 mA; accuracy 2%, ±1 mA
• Capacitance range: 1 µF; accuracy 3%, ±1 nF
• Dimensions: 129 x 61 x 39 mm (5.1 x 2.4 x 1.5 in)
• Weight: <450 grams (<1 pound)
• Battery options: Standard alkaline AA or optional rechargeable NiMH
• Test port: 2 mm banana

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