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Tester Lending

Borrowing of the device to the registered customers against payment is subject to agreement - please contact sales department at obchod@cheops.cz.

For this purposes, we offer certification device class E category 6 JDSU Validator NT955 for measurement and certification at up to 1GB/s.

NT955NT955 set

The ValidatorTM series of Ethernet Network Management Tools—Validator and Validator-NTTM—offer a complete solution to test and speed certify the data-carrying capabilities of Ethernet network cables up to 1 Gb/s by testing for noise in the network, detecting faults in the cabling wiring, and ensuring that cables are able to support the speed capabilities of active equipment. 

To certify Ethernet speed performance of cable runs, the Validator series handheld testers conduct Bit Error Rate (BER) tests by sending data packets down specified cable runs at defined data rates to check for errors at the maximum throughput of the link. Both Validator and Validator-NT also report on signal quality that can impact high-speed data transmission by measuring signal-to-noise ratio (SNR). Skew mea surements report on the signal time delay between pairs that can impact Ethernet data transmission. Finally, the Validator series units provide continuity testing that detects opens, shorts, miswires, split pairs, reversals, and high-resistance faults while accurately measuring distance to faults and total cable length.

The Validator-NT includes a comprehensive set of features to test the active network capabilities of a network: port discovery for speed and capability detection of active devices up to 1 Gb/s; ping test to verify connectivity to IP hosts on or off the local network; and discovery of network devices using Cisco Delivery Protocol (CDP). Cabling Installation and Planning Software  Validator and Validator-NT include the powerful Plan-Um® planning and reporting software for planning network architectures and organizing cable information and test results. Plan-Um helps set-up each job, defines scope of the job, aids in testing cable runs, and produces reports for the installer and customer. The Network Tools feature provides a quick way to see the network architecture and a way to document moves, adds, and changes. Used in conjunction with Plan-Um, Validator and Validator-NT provide confidence in the physical properties of cable runs and the overall capability of the network.

Key Features

  • Conducts Bit Error Rate (BER) testing to speed certify Ethernet data transmission speed up to 1000BASE-T (1 Gb/s)
  • Measures Signal-to-Noise Ratio and Skew to uncover impairments to Ethernet data transmission
  • Tests for opens, shorts, split pairs, miswires, and reversals and measures distance to opens and shorts—supports all network, telco, and coax cables
  • Identifies cable termination on active Ethernet ports with hub flash
  • Performs port discovery to detect advertised Ethernet speed and displays capabilities of network devices (Validator-NT)
  • Pings network devices to verify connectivity to active equipment (Validator-NT)
  • Includes Plan-Um® software to create network layout, document cable tests, show network topology, and record moves, adds, and changes


  • Verify proper operation of Ethernet cable runs
  • Certify speed capability of cable runs to support 10/100/1000 Mb/s Ethernet applications
  • Ensure configuration of and  connectivity with active network devices
  • Document network topology including moves, adds, and changes