Telephone Line
Verification of telephone line or circuit signal quality and integrity.
See Also: Telephone Line Test, Central Office Switch
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Product
Video Line Insertion Processor
VIP472
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The VIP472 is a line switcher that will insert any one video test signal line onto your NTSC video path so that you can monitor the trasmission signal quality. This process allows the video test signal to pass through all digital compression systems to verify that your video is being delivered accurately without distortion.
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Product
High-Speed Optical Delay Line
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The Peregrine Optical Delay Line (1-cm, 60 ps delay) and the Gyrfalcon Optical Delay Line (2-cm, 120 ps) are high-speed, high precision, voice coil motor optical delay lines. They have zero-backlash and no hysteresis. Both have similar form factors that are compatible with 30-mm cage components and 1.035” – 40 threads. Both include full digital and analog control and include a USB interface.
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Product
Pole Mounted Detector of PtG and PtP faults in 6-69V Line
LineTroll 111K
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The unit mounts 3-5m below the conductors and monitors all three phases. The indicator is powered by replaceable long-life lithium batteries which have a lifeexpectancy of 10-15 years. It provides a 360 degree visibility for indication both for transient faults and permanent faults.
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Product
In Line HT Ignition Tester
1177
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Establishes whether there is a high tension spark potential at the spark plug. Hands free operation means no risk of electric shock to user. Ideal for modern vehicles with sensitive electronics. Probe is 55mm long with a lead 100mm in length.
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Product
EV Power Components End of Line Test Platform
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Test and Validate all EV Power Electronics with One Flexible and Scalable Solution
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Product
Data Line Analyzer
ELA 10
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20 Hz to 20 kHz selective/wideband Level Meter & Generator, with Spectrum Analyser, and phone symulator dialer.
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Product
RS-232 Auto Powered Line Driver
Model 201
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FEATURES: Operates with only Pins 2(TD), 3(RD), & 7(GND); Screw Terminals and RJ-11; DTE/DCE Switch; Built in Surge Protection; Male or Female RS-232; 19.2 KBPS, Full Duplex, 2.1 Miles. The Model 201 RS-232 Auto Powered Line Driver requires only TD, RD, and signal ground for power and full duplex operation up to 19.2 K BPS.
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Product
Line Splitters
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Precision Mastech Enterprises Co.
Allow for safe, accurate current measurements using a clamp-on ammeter without damaging or stripping the appliance's power cord.
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Product
Power Line Transducers
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Current Transducers measure AC Current and converts it to an industry standard output signal which is directly proportional to the measured input. These Transducers provide an output which is load independent and isolated from the input. The output can be connected to Controllers, Data-Loggers, PLC''''s, Analog / Digital Indicators, Recorders for display, analysis or control. They are ideal for SCADA, Energy Management, Telemetering for Remote, Local as well as Central Monitoring Systems.
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Product
Single-in-Line Reed Relays
Series 117
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SIL relays - Very High Density Instrumentation & ATE. Smallest board area. 1A version requires 0.15 x 0.27 inches (3.8mm x 6.8mm). 1 or 2 switches with 3 Watts rating. 5 Volt coils with optional diode
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Product
Tel Line Tester
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A diagnostic tool used to verify, troubleshoot, and maintain analog and digital copper phone lines.
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Product
Central Office Line Simulator
AI-7280
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The AI-7280 is a highly flexible central office line simulator. It is designed primarily for the testing and verification of common terminal equipment, including standard telephones, Caller ID devices, SMS (Short Message Service) capable equipment, and any device using an analog Tip/Ring interface circuit. Supplied with the TRsSim software for Windows, it can analyze a telephone''s DTMF characteristics, pulse dialing and flash timing, generate various network tones and ringing patterns. Both Type I (on-hook) and Type II (off-hook) Caller ID is supported using either FSK or DTMF data transmission. As an optional component, the TRsSim software can perform SMS testing to either the ETSI protocol 1 or protocol 2 standards.
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Product
1500VA Line Interactive UPS,2U
EPSV-1500
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1500VA EPSV Value Rack/Tower UPS provides real emergency power uptime with great features and benefits.
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Product
Very Compact Linear Line Array Loudspeaker
LINA
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Easily the smallest and lightest in the series, LINA and its companion control element 750‑LFC bring the inherent linearity, low distortion, and exceptional power-to-size ratio of LEO Family technology to a wider range of applications and venues.
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Product
Resistance Bridges - AccuBridge® Line
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Measurements International Ltd.
The Resistance Ratio Bridge from Measurements International is the next generation replacement. Measurements International is pleased to release the next generation room temperature Direct Current Comparator Resistance Ratio Bridge.
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Product
Fixed/Dual Delay Line
Series 1000
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The EOX Series 1000 RF/Microwave Time Delay System is an economical, high performance, turnkey solution for radar test, wireless communications, Wi-MAX, and altimeter applications. The Series 1000 features ultra wide bandwidth, low loss, high isolation, low noise figure, and high dynamic range. Available with time delays up to 250 µsec and a top end frequency of 18 GHz.
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Product
SAM Premium Line
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PVA TePla Analytical Systems GmbH
The SAM Premium Line combines acoustic microscopy and optical microscopy. It enables the scanner to be combined with both an inversion as well as a reflected-light microscope. The technology used in the SAM Premium Line is based on a core platform that employs the latest production and research technology. The individual systems are characterized by high throughput, high flexibility and a wide scanning range. They can be expanded to suit customer requirements and specified for the most diverse applications.
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Absorber Lined Shielding Enclosure Measurements
ALSE
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Due to on-going work in the standardization committee CISPR D (responsible for CISPR 25) the latest issue CISPR 25 Ed. 4.0 has not been cited to-date. In the meantime we are able to offer two different validation procedures:
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Product
Line Impedance
KIT
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The Line impedance kit is composed of two modules, STLG and STSG. The kit is meant to be used with STS 5000, STS 4000 and eKAM in order to perform Line Impedance test.
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Product
Digital Line Protection System
DLPD
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The DLPD provides distance protection for HV and EHV transmission lines. It may be used for single or three phase tripping applications. It includes four zones of distanceprotection. User selectable pilot schemes are provided with stepdistance backup. Ground instantaneous and time overcurrentfunctions are independently selectable to be directional ornon-directional.
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Telephone Attenuators & RFI Filters
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Despite the growth in digital and fiber systems, many telephone companies still require basic line treatment products. Wilcom's hard-to-find line treatment products help the telecommunications industry deliver the performance the customer expects. Products include line powered amplifiers and RFI filters.
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Product
Power Transmission Line Inspection System
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Shandong Senter Electronic Co., Ltd
With the aid of high-end technology and equipment, Senter Electronic manufactures and trades high-tech power transmission line inspection system with low price. And we are known as one of the leading such manufacturers and suppliers in China for our quality products and good service. Welcome to buy the power transmission line inspection system with our factory.
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Product
Telephone Headset and Handset Test System
THT
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TE2000 Headset Tester for audio testing headsets and handsets using computer generated test sounds.
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Product
USB Line Scan Camera
Inexpensive
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Compact USB line scan camera with high sensitivity and resolutions from 2048 to 4096 pixels. The programming interfaces, including drivers, libraries and programming examples, enable the USB line camera to be integrated into your own application. The line scan camera is supported under the following operating systems:*Windows*Linux*Linux ARM 32Bit (Raspberry PI)*Linux ARM 64Bit (NanoPi M4 & NVIDIA Jetson Nano)
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Product
Overhead Line Fault Locators
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We're professional overhead line fault locator manufacturers and producers in China, supplying the best customized service. Feel free to buy high quality overhead line fault locator from our factory. All our portable products used in utility locations are with CE certification.
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Product
AC Power Line EMI Filters
CleanSweep®
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CleanSweep® filters block EMI on power lines (both common and differential modes) and, uniquely, in ground, from reaching sensitive equipment. They also reduce EMI "backflow" from a "noisy" source that otherwise would end up on your AC power network.
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Product
RS-232 Fiber Optic Auto Powered Line Driver
Model 9271
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The Model 9271 RS-232 Fiber Optic Auto Powered Line Driver features a standard DB9 interface for maximum performance and reliability of data transmission over glass fiber, eliminating the need for serial to nine-pin adapters. In addition, it brings effective data communications to manufacturing environments. I
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Product
Weather Resistant Surge Protector for RS485 Control & 12VDC Power Lines
SP-RS485-12V-O
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Ideal for applications such as video surveillance cameras and access control. Protects sensors running on 22 AWG 2-wire sensor cables or 12VDC power lines against the effects of electrostatic discharge, faulty wiring and lightning. RS485 protection: Stage 1 clamping voltage: ±90V; Stage 2 resistance: 3.3 Ohms; Stage 3 clamping voltage: ±7.5V. 12VDC power lines protection: Stage 1 clamping voltage: ±90V; Stage 2 current rating: 3A; Stage 3: 12V TVS (transient voltage suppression) diode. Screw terminal pairs for RS485 and 12VDC power lines protection. Will also protect two single ended data, analog or control lines. Impact and weather resistant enclosure with locking hinged cover.
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Product
PLC Line Traps
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Line Traps are used in transmission and distribution networks and they are the key components in Power Line Carrier (PLC) systems used for remote control signals, voice communication, remote metering and control between substations in the electrical T&D networks.
