The CW-305 is a universal cable tester with which it is possible to test a wide range of different cable configurations. All told, the CW-305 boasts more than 240 signal lines, which are implemented on the basic module. The cables to be tested are connected to the device via detachable interface modules. In addition to standard interface modules for D-sub cables it is also possible to mirror customer-specific cable configurations.


The cable tester is operated intuitively via the touchscreen display. Once the details of the cable have been automatically learnt its configuration is stored on the device, which offers two different test modes. The full test tests the signal lines are in order, taking open circuits and short-circuits of the individual lines into consideration. The continuous test sees the test repeated cyclically so that it is possible to detect open circuits and poor contacts. The test result is displayed with a Go / No Go statement. In addition, the faulty lines are listed in the test details.


  • 240 freely available signal lines
  • Test for continuity, open circuit and short circuit
  • Learns, stores and loads cable configurations
  • Plug-on module for a wide range of different cable types
  • Very short test duration
  • User-friendly operation via touchscreen display
  • Particularly rugged design


Technical data

Signal lines

Number: 240
Cable resistance max.: 30 kΩ 
Cable capacitance max.: 1000 pF

Power Supply

Operation voltage: 5 VDC
Current consumption: 280 mA at 5 VDC
Connection: via delivered power supply plug or USB-interface

Environmental conditions

Temperature range operation: -20 °C to +60 °C
Temperature range storage: -20 °C to +70 °C
Relative humidity: 35 % to 85 % non-condensing
Protection class: IP40

General information

Housing: Robust aluminium-housing
Dimensions (LxWxH): 300 mm x 230 mm x 60 mm
Weight: 2100 g
Testing time: approx. 5 seconds (full test)


Type: Standard-modules for D-Sub (9-, 15-, 25-, 37- and 50-pin)
Customized modules on request

Back to the overview | CW-300 Series