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Sidekick Plus

Tempo Sidekick Plus

Sidekick Plus 5001 is an advanced cable maintenance test set designed to provide cable test, diagnostics and fault locating capabilities for telecom and low voltage power cables, all in one instrument. Manufactured by Tempo Communications U.S.A (Previous by Greenlee)

The Sidekick Plus TDR  performs the following tests which should routinely be performed by signaling and telecom departments to evaluate ability of cable pairs to transmit & receive signals or transfer electrical energy. Key test features of the Sidekick 1155-5001 for Cable testing include:

  • Cable Fault location: Advanced Dual Trace Pulse TDR (Zero Dead Zone) (Upto 10kms)
  • Resistive Fault Locator (Upto 60kms detects up to 20M)
  • Multimeter (AC&DC Volts) & Loop Current
  • Ground resistance tester
  • Resistance & Leakage/Insulation Resistance (1G)
  • Capacitance /Cable length (Open meter)
  • Cable Stress & Longitudinal Balance Test
  • Loop current
  • Circuit loss
  • Tracing Tone generator & reference tone

The instrument is used by Telecom departments including by Broadband ISP Service providers &  PSTN Telephone networks with twisted pair or coax Copper from the exchange to cabinet, pillar or pole and into the customer premise or business including Auto test report of Pass/Fail and DSLAM Test reports and for Railway signalling and telecom departments for finding faults on a variety of cables, IT departments of Power Discoms and large campus installations managing cable networks.

Ground Resistance Test

Ground resistance testing is useful when evaluating whether a station, or premise ground is sufficient.

Time Domain Reflectometer (TDR)

A pulse TDR has the capability of checking the quality of cables from the end of the test leads with zero dead-zone.

Resistive Fault Locator (RFL)

Resistive Fault Location is used to locate short circuits to other cables or ground.

Leakage / Resistance

Leakage / Resistance is used to detect intermittent resistance faults that normal VOM tests cannot detect.

Product Specification





TDR Cable fault locating  

Upto 10000 meters (Dead zone : 0m)


 +/- 0.01%+300ps +/Vp uncertainty+/-cursor resolution

AC Volts

0 to 250Vrms

0 to 9.99 V = 0.01 V; 10 to 250 V = 0.1 V


DC Volts

0 to 300VDC

0 to 9.99 V = 0.01 V; 10 to 300 V = 0.1 V


Loop Current


0 to 9.99 mA = 0.01 mA;

±2 mA

10 to 99.9 mA = 0.1 mA; >100 mA = 1 mA

Circuit Noise

0 to 90 dBrnC


±2 dBrnC


Ground Resistance Test



 Fall of Potential

Longitudinal Balance

+100dB to +20dB

0.1 dB

±2 dB from +20 dB to +90 dB,

± 5 dB from +90 dB to +100 dB


0 to 100MΩ

0.1 Ω



Leakage / Insulation

0 to 999MΩ

a. 1 kΩ to 1 MΩ
b. 10 kΩ from 1MΩ to 10MΩ
c. 100 kΩ from 10 MΩ to 100 MΩ
d. 1 MΩ for 100 MΩ to 999 MΩ


±5% up to 100 MΩ; ±10% from 100 MΩ to 999 MΩ

Measuring cable length / Distance to Open Meter

0 to 30kms

0.3 m

a. 5% / 30 to 6095 m

b.  4% / 6096+m

Resistive Fault Locating

0 to 61km


±0.5% of full scale, ±1 digit

0 to 19.99MΩ

Tracing Tone Generator

 •Tracing tone generator (metallic and common mode)

• Reference tone: +14 to –20 dBm; 200 Hz to 20 kHz


LCD Display, 320 x 240 pixels display resolution, sunlight readable

Operating /Storage temperature

–18 °C to +50 °C


Instrument capable to save Upto 400 auto tests or 200 TDR results. 


USB - 2nos, RJ45-1nos.

Dimensions & weight

279 x 121 x 76 mm , 1.4kG

Power Supply

Rechargeable Li-ion battery pack, AC adapter/charger (100 to 250 VAC, 50 to 60 Hz, 1 A in, 12 Vdc 2.5 A min. out) , Auto off function

Supply should  include:

Primary test leads (red, green, black) with large crocodile clips, Secondary test leads (blue and yellow), Test strap for the resistive fault locator (RFL) operation, Carrying case






Cable Fault Locating

Fault locating method #1, low resistance


Sidekick’s TDR can be used to find a variety of cable faults on metallic cables including

·        cable shorts

·        open fault

·        Bridged taps/lateral

·        Load coils, splitters

·        couplers

·        loop extenders

·        rough estimate of the total amount of cable that is wet and the approximate location of the wet section.

·        Low insulation faults

If the fault is bad, i.e. shunt faults between 0Ω-10kΩ, the built-in TDR can be used for finding faults on copper cables effective up to 10 km range (depending on Vp). The instrument provides full control of Gain, Vp, Pulse vertical offset as well as zoom facility to investigate areas of interest.


A built-in comprehensive cable library is available to calibrate the Sidekick Plus to the correct cable.


Apart from Signalling & telecom copper cables, the Sidekick can be used for low voltage cables for locating distance to fault and identifying the type of fault.

TDR Features include :

·        Dual trace function: Sidekick® Plus test set can display two TDR traces at the same time or perform mathematical comparisons of the traces using the second reference test pair.

·        Zoom feature allows the user to get a closer look at the TDR trace (Zoom In : Data over smaller range), Zoom Out (data over larger range)

·        Adjustment of Gain/Offset/Averages/VP/PW

·        Data storage of TDR Traces with the ability to recall saved traces On-site and download to Computer.  

Up to 10 km distance to fault

Time Domain Reflectometer (TDR)


Fault locating method #2, high resistance

RFL feature built in the Sidekick can locate high resistive faults on copper pairs up to 20MΩ.

High‑resistive faults are generally caused by damage or deterioration of cable insulation or sheath protecting the wires due to the presence of water or moisture.  This enables telecom cable maintenance groups to be Pro-active in clearing faults before the faults occur. 

>60 km @20MΩ

Resistive Fault Locator (RFL)

Data Saving

Traces can be stored on the instrument to be uploaded to the PC later. Hundreds of test results can be saved for  viewing TDR traces

Up to 400 autotests or 200 TDR results can be saved.  

Cable Testing & Diagnostics

Cable Length measurement

This feature can be used to measure cable length i.e.

·        measure distance to an open, mutual capacitance as well as the conductor to ground capacitance of the pair.

·        measure cable length of cable rolls.

Up to or greater than 100 km

Leakage / Insulation Resistance


Measure insulation resistance up to 1 Giga-Ohm by “leakage test.” This tests insulation resistance at 150 DCV which is higher than the normal operating voltages in order to determine the likelihood of a future breakdown in insulation (a high resistance fault) and/or to bring about such an impending failure while the technician is on-site and can locate and repair the problem.

The leakage test is ideal to locate to detect  :

a.       intermittent resistance faults

b.       cable shorts.

999MΩ @150VDC


Earth/Ground Test

Check ground integrity and measure the earth resistance based on the fall of potential method.

0 to 250 Ohms

Multimeter function

AC & DC Voltage


Sidekick Plus can measure all the critical voltage parameters without changing lead configurations. Set the impedance of Sidekick Plus to currently defined Telecom standards of 1 MΩ. The instrument also provides the ability to change this to 100kΩ  to conform to older specifications wherever available.

Sidekick Plus provides 1MΩ impedance as per telecom standards, unlike many other testers that offer 3MΩ which results in invalidated readings.
The information can be presented in either: digital, Analogue, or 3 wire format.

AC & DC voltage can be presented on the same screen simultaneously.



AC & DC Loop Current

Current measurement information can be presented in either: digital, Analogue, or 3 wire format.  AC & DC voltage can be presented on the same screen simultaneously.

Up to 110mA

Circuit Noise and Power Influence (PI)

The power influence measurement specifically identifies electromagnetic interferences (EMI) from external sources (mainly power lines). Circuit noise on cable pairs is generated internally by pair imbalances or externally by Central Office equipment, subscriber equipment, or electromagnetic interference (EMI) equipment (radio transmitters, generators, transformers, etc.).  Normally, poor ground or sheath on the cable pair or the external equipment allows noise to “leak” onto the cable pair.


30 to 110 dBrnC


Low voltage test to measure loop resistance. Circuits being installed too far from the exchange may well test OK but if the loop resistance is too high the higher frequency signals from ADSL & VDSL will not be seen at the far end causing slow modem speeds.




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