• Carry out a PoE load test to ensure trouble-free operation of PoE devices (displays voltage and power)
  • Quickly document your work within a blink of the eye with screenshots of your test results
  • Test your network and coax cabling quickly and conveniently (RJ45 and F-coaxial connectors)
  • Get an overview of the correct cable wiring with a graphical display in wire map format
  • Determine cable lengths and distance to cable faults with a full TDR measurement

Technical Details

General specifications

Measurement Technology

Time Domain Reflectometry (TDR) and capacity

Cable Measurements

Cable Testing and ID: up to 1,000 ft (305 m)
Split Pair Detection: 3 ft (1 m) to 1,000 ft (305 m)
Length Measurement: 0 to 1,500 ft (457 m), ± (5%+1ft)
Supports 8 continuity and ID numbers remotes (RJ 45)
Supports 20 RJ 45 and 20 F connector ID only remotes

Power over Ethernet

Tests for IEEE 802.3af and IEEE 802.3at (PoE Plus) compliant PoE
Tests for classes and loads cable up to 25.5 watts (at class 4 Identifies Mode A or B (pairs with PoE)

Active Ethernet

Indicates advertised speeds of 10/100/1000 base-T half or full duplex
Can Link to network at 10/100 base-T


PDF/CSV reports with PC- Software

Maximum Voltage

Parameters refer to the maximum voltage that can be applied to any 2 connector pins without causing damage to the tester
RJ Jack: 66 Vdc or 55 Vac
F-connector: 50 Vdc or Vac

Save Test Results

Stores up to 250 Cable or network tests with user defined names

Tone Generation

Tone Frequencies: 730 Hz and 1440 Hz


English, French, German, Spanish

Battery Life

For 6xAA, 9VDC, 2,200 mA-hr (typical) alkaline battery:
Operating - 20 hours typical
Standby - 1.5 years typical
(200 uA max standby current), Batteries are included


10.000 ft (3048 m) operating


Operating: 32 to 122°F (0 to 50°C)
Storage: -22 to 140°F (-30 to 60°)


10 to 90% non-condensing


High-strength PC/ABS plastic with VO rating with boot
Withstands 4 foot drop on to concrete


Full color graphical LCD with 7,1 cm diagonal


1.85"H x 3.6"W x 6.8"L (4.7 x 9.15 x 17.3 cm)


With batteries: 1 lb 2 oz (510 g)

Safety Compliances

CE conforming


CableMaster 600

  • Cable tester, incl. 1 network/tel testing and ID remote
  • 6x AA batteries
  • 2x RJ45 cables
  • Micro USB cable
  • Pouch



CableMaster 650

  • Cable tester, incl. 1 Cable Tracker CT15 tone probe
  • 8 network/tel testing and ID remotes
  • Cable assembly RJ45 to alligator clips
  • No. 1-20 coax ID remotes
  • 6x AA batteries
  • 9x RJ45 cables
  • Micro USB cable
  • Pouch



Navigate to the system settings of the device (gear-icon) and scroll down until the length option appears.

The sound can be received with a tone probe (accessory unit). You will need our CT15 Probes (article no. 226007).

You are probably using a shielded/laminated cable. The shielding is used for electromagnetic shielding of the cable, so the signal of the sound generator is shielded. However, you can still receive the tone at the open ends or sockets/plugs on the cable with the probes.

You can change the language of the CableMaster 600/650 in the menu "Options". Available languages are: German, English, Italian, Spanish, French.

The CableMaster 600/650 is only able to connect to 100 BASE-TX. The CableMaster 600/650 nevertheless recognizes, however, 1000 Base-TX.

Never push a RJ11/RJ12 connector into the RJ45 socket on the CableMaster 600/650! The RJ45 socket can be damaged! Adapters are commercially available. Use an adapter to test a RJ12 cable with the CableMaster 600/650. RJ11 cables are not supported.

Check the charge level of your batteries the battery indicator at the upper right of the screen. If the battery level is low and red, please change your batteries. If the fault can not be corrected, please contact our Support: support.france@softing.com

Please perform a firmware update of your CableMaster 600/650 to correct this error. Go to itnetworks.webseiten.cc/index.php to obtain the firmware package.

Your device does not have a defect. Follow these steps to resolve the behavior:
1. Update to the latest firmware (http://itnetworks.webseiten.cc/index.php?id=145&L=1)
2. Zero the length before testing. Navigate to "Options" and press the button "zeroing".
3. Make sure that all connections are securely attached to the track.

"Power over Ethernet" (from the Engl .; "Power over Ethernet"), abbr .: PoE, is a technique that can supply power to network- devices over the eight-wire Ethernet cable. The CableMaster 600/650 performs a load test on voltage stability and detects any possible power classes and types.

The CableMaster 600/650 supports IEEE 802.3af and 802.at (PoE +) and loads up to 25.5 watts (in class 4 detection of mode A or B).

A "split pair" - error is a rare cabling error. It occurs when an identical mistake was made at the assembly on both sides of a cabling link. The white veins of two identical pairs are reversed at both ends, although consistent the orientation of the wires causes very high crosstalk. The result: A communication of active components is not possible.

The CableMaster 600/650 has two firmware versions: C and L. You´ve put on the wrong version on your tester. Connect the tester to the PC again and put the other version on it.