Instrument performs multiple diagnostic tests on twisted pair

28 January 2004 Test & Measurement

The Sidekick T&Nd is a multifunction test set from Tempo that can help improve technicians' testing and troubleshooting capabilities on twisted pair.

It uses digital technology to combine VOM and loop current tests, longitudinal balance (Stress Test), transmission and noise, open locator, and load coil detection into a single test set.

The test functions can be selected and used individually, or run automatically by using the innovative Autotest. Autotest can perform 22 consecutive individual diagnostic tests and displays a test summary when completed. Test results are displayed on a 4 line digital LCD display. This eliminates meter interpretation errors and provides the user with a clear numerical readout.

Sidekick T&Nd also includes Tempo's patented Stress Test and Leakage Test. Stress Test measures the audible noise produced on a pair when it is 'stressed' as a result of a 90 dBrnC longitudinal excitation. The Stress Test determines the capacitive and series resistance balance characteristics of a twisted pair at any point along the pair. It can detect imbalances that other test sets miss and is highly effective in identifying series resistance opens (high joints). The Leakage Test detects intermittent resistance faults that do not appear under normal VOM tests. When a faulted pair is taken out of service, galvanic action forms an insulating oxide layer over the fault(s). When returned to service, such pairs develop 'noisy static' in a relatively short period of time. The Leakage Test uses 135 V to 'punch through' the oxide layer and reveal the fault.

For more information contact Michael Braun, Powertel, 011 271 0230, [email protected]

Further reading:

High-speed AWG generates up to 20 sine waves
Vepac Electronics Test & Measurement
Spectrum Instrumentation has released a new firmware option for its range of versatile 16-bit Arbitrary Waveform Generators, with sampling rates up to 1,25 GS/s and bandwidths up to 400 MHz.

Read more...

---

Digitisers upgraded with pulse generator option
Vepac Electronics Test & Measurement
Spectrum Instrumentation has added the Digital Pulse Generator option to its ultrafast digitisers (with up to 10 GS/s speed) and arbitrary waveform generators.

Read more...

---

Network Master Pro to provide support of OpenZR+
Tamashi Technology Investments Test & Measurement
Anritsu Corporation has introduced the 400G (QSFP-DD) multi-rate module MU104014B that supports the new interface standard.

Read more...

---

Upgrade brings extra layer of detection to Fluke’s acoustic imagers
Comtest Test & Measurement
The firmware 5.0 update helps to boost efficiency and allows maintenance technicians to scan large areas quickly, and visually pinpoint technical issues before they become critical.

Read more...

---

Companies collaborate on EnviroMeter
Avnet Silica Test & Measurement
STMicroelectronics and Mobile Physics have joined forces to create EnviroMeter for accurate air-quality monitoring on smartphones. Time-of-flight optical sensing enables an accurate personal air quality monitor and smoke detector.

Read more...

---

PCB test points
Vepac Electronics Test & Measurement
Maintaining these access points in the final production versions will prove invaluable during the life of the equipment for service, adjustment, and debug, or repair activities.

Read more...

---

RFID reader
Test & Measurement
The EXA81 from Brady turns any smartphone or tablet into a personal radar that can pick up radio signals from all RFID-labelled items.

Read more...

---

Proximity sensor with VCSEL
Avnet Abacus Test & Measurement
Vishay’s newest small package proximity sensor, the VCNL36828P, combines low idle current with an I2C interface and smart dual slave addressing.

Read more...

---

CNH data output devices for AI applications
Altron Arrow Test & Measurement
STMicroelectronics’ CH family of time-of-flight sensor devices feature compact and normalised histogram (CNH) data output for artificial intelligence applications requiring raw data from a high-performance multizone ToF sensor.

Read more...

---

Webinar: The key to smart occupancy
Test & Measurement
This one-hour session will allow the attendee to discover the company’s latest infrared sensor with high-sensitivity presence and motion detection capabilities.

Read more...

---