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
Mic / Audio Line Tester
Qbox
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Whirlwind Music Distributors, Inc.
The Qbox is the all-in-one audio line tester ideal for applications such as live sound, maintenance, installation work - anywhere audio runs down a cable. The Qbox can quick-check dynamic microphones and cables without firing up the entire system. It provides a handy mic or line-level tone for activating a signal path or identifying a specific cable in a pile of cable ends.
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Product
Line Scan Camera
8M Series
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The USB Line Camera 8M is an easy-to-use cost-effective board-level line scan camera. It consists of two circuit boards, the main circuit board and the sensor circuit board.
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Product
625 KHz Data Acquisition Multifunction (Analog Output X2 Lines) PCMCIA
DAQi616MF(MF236/i)
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The DAQi616MF is a type II PCMCIA I/O card for notebooks and other computers containing a PCMCIA slot.
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Product
Single-in-Line Reed Relays from Pickering Electronics
SIL / SIP
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The SIL / SIP reed relay is the industry standard when high reliability and consistent performance are desired in a compact package. Pickering Electronics Series 100 - 119 SIL / SIP reed relays feature the highest quality instrumentation grade reed switches making them suitable for the most demanding applications. Features include:
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Product
Compact Linear Line Array Loudspeaker
LEOPARD
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Say hello to LEOPARD, the most lightweight, versatile line array in its class. The best-selling loudspeaker in the LEO Family faithfully reproduces sound with unsurpassed depth and clarity in a broad scope of installed and touring applications. In Meyer Sound tradition, LEOPARD delivers exceptional phase coherence, consistent coverage, extremely low distortion, and unrivaled power-to-size performance.
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Product
Line Drivers
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The Asynchronous Line Driver (ALD-19.2) utilizes state of the art digital CMOS technology to provide a feature filled product at a very affordable price. The ALD-19.2 transmits and receives data bi-directional at data rates up to 19.2kbps. The unit is designed for asynchronous Point-to-Point operation.
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Product
Transmission Line Probes
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Transmission line probes are a special type of passive probe designed for use at very high frequencies. They replace the high impedance probe cable found in a traditional passive probe with a precision transmission line, with a characteristic impedance that matches the oscilloscope input (50 Ohm). This greatly reduces the input capacitance to a fraction of a picofarad, minimizing the loading of high frequency signals. A matching network at the tip increases the DC input resistance. While they have lower DC input resistance than a traditional passive probe (usually 500 Ohm) to 1kOhm), the input impedance of these probes remains nearly constant over their entire frequency range. A traditional /10 passive probe will have a 10 MOhm) input impedance at DC, however this impedance drops rapidly with frequency, passing below the input impedance of a transmission line probe at less than 100 MHz.
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Product
RS-232, RS-422, or RS-485 to Fiber Optic Line Driver
Model 8277
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The Model 8277 is a unique asynchronous fiber optic modem whose optical interface can operate in either point to point or ring (daisy chain) configurations and whose electrical interface can also operate in point to point or multi-drop configurations depending on the user selected interface.
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Product
Public Switch Telephone Network Tester
295B
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The Testphone 295B is a test telephone designed for use on Public Switched Telephone Networks (PSTN). It is designed for use on both Dual-tone Multi-frequency (DTMF - tone dialling) and Loop Disconnect (LD - pulse dialling) lines. Fitted with an integral ADSL filter, the telephone will not cause interference when connected to ADSL/Broadband lines in either `on hook` or `off hook` mode.
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Product
5uH Line Impedance Stabilisation Network LISN - CISPR 25
TBOH01
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The TBOH01 5H LISN is a device required to setup conducted noise measurements of DC-powered devices. It is designed to be used for EMC pre-testing in the frequency range of 150kHz to 110 MHz.
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Product
Loop and Line Powered Level Switch
Safety IntelliPoint
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The Safety IntelliPoint level switch provides a capacitance probe level switch with either a current output or relay contacts and “On-Board” self-diagnostics to ensure reliability. This SIL Intellipoint conforms to SIL 2 specifications providing the ultimate in level switch integrity and level sensing elements for a wide variety of temperatures, pressures, and materials.
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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
SAM Line
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PVA TePla Analytical Systems GmbH
The SAM Line offers easy-to-use scanning acoustic microscopes for process control and quality assurance as well as for research applications. The individual models are derived from a component platform that complies with industry standards and incorporates cutting-edge production and manufacturing technologies. Thanks to their new high-frequency and transducer technology, our acoustic microscopes enable detailed acoustic analysis in the ultrasound range up to 400 MHz.
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Product
LAN/Ethernet/Telephone Cable Tracker & Tester
PHCT65
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Trace Telephone Wire and LAN CableTrace Wires In Electrical SystemVerify LAN Cable ConditionContinuity TestDC Voltage ProbeBright White LED FlashlightSold as : Unit
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Product
Line Mounted Fault Indicator
LineTroll 110Eμ
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Linetroll 110E contains magnetic and electric field sensors surveying line current and line voltage. The magnetic sensor automatically adapts to line current, detecting preset current increases. The electric field sensor is monitoring the presence of line voltage. The sensor signals are processed and compared with user set alarm criterias.
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Product
6 GHz, 4 Channel Programmable Delay Line
QPADL6
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The QPADL6 is a programmable delay line instrument with 4 independent channels designed for adjusting the time delay or phase of radio, microwave or even digital signals with bandwidths from DC to 6 GHz.
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Product
Vehicle Inspect Lines Software System
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Foshan Analytical Instrument Co, Ltd.
Flexible control mode(A collective-type control mode can be adopted,but a distributive-type control can also be adopted);Powerful system function(Distributive-type control and collective-type management,provide the functions of equipment debugging,vehicle log-in,vehicle testing and bill printing.A secret code and right-limit can be set so that the system safety function is enhanced);Remote control(A remote log-in,main remote control and remote printing can be realized in accordance with the actual conditions of the testing station.At the sametime,provides a powerful data-base and one station with multi-wire:That is one testing station has more
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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
Programmable Delay Line Instrument
XT-100-OEM
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With the XT-100-OEM, all the capabilities and precision of the XT-100’s trombone technology can be built right into your own system. This product is intended primarily for OEM applications so you have a streamlined solution for precision phase shift or programmable delay.
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Product
Flight Line Avionics Test
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The TS 717 Test Set for ARINC 717 is a convenient, easy-to-use tool for test and maintenance of aircraft systems that are tied to the Digital Flight Data Recorder (DFDR). The compact interface/cable hardware is conveniently stored in a rugged carrying case for easy transport and quick deployment.The webFLT™ is a wireless functional tester for aircraft systems using the Digital Flight Data Recorder ARINC 717 bus. It connects directly to the aircraft system test plug and transfers data to the test computer via an 802.11 b/g wireless link, eliminating cabling in the crowded cockpit that can be tripped over or damaged.
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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
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
Loop A Line Products
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Cable pair tracing and a lot more, Loop-a-Line products can remotely control a far end device (the oscillator) for up to 20km of cable. Using a Loop-a-Line allows the linesman to remotely change the state of the oscillator to any of five different states. Therefore eliminating the need for multiple journeys along the cable path.
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Product
VIDEO LINE TEST GENERATOR
VLTG-800
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The VLTG-800 Video Line Test Generator creates a standard NTSC video signal that can be observed on a Monitor to display a series of vertical lines that defines the maximum number of “lines of definition” that the CCTV system is capable of displaying. The Generator creates eight groups of lines, ranging from 100 to 800 lines.
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Product
Air Core Line & Load Reactors
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Line and load reactors are generally serial-connected to the input and/or output terminals of three phase equipment such as motor speed controllers, inverters and UPS systems. These equipment make use of semiconductor switches such as IGBTs, thyristors, and diodes and therefore create harmonic distortion and high switching over-voltages (dv/dt). Use of such equipment has been becoming more widespread as the technology advances. However, the negative effects of these equipment should not be overlooked.
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Product
Power Line EMI Adapters
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How much EMI noise is on your power lines indeed? How to assess the levels of noise and its properties when it is obviously a bad idea to connect your oscilloscope or a spectrum analyzer directly to your power lines?Our EMI interface adapters provide a barrier for high mains voltages but a straight passage for high-frequency signals so that you can connect your sensitive instrument to power lines for analysis and quantification. We offer plug-in and hand-held adapters which can measure both differential ("normal") and common-mode noise.
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Product
SparkFun Line Sensor Breakout
QRE1113 (Digital)
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This version of the QRE1113 breakout board features a digital output, using a capacitor discharge circuit to measure the amount of reflection. This tiny board is perfect for line sensing when only digital I/O is available, and can be used in both 3.3V and 5V systems.
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Product
Telephone Test Sets
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Telephone test sets are a standard among telephone linemen. For the past 100 years, a test set’s functionality hasn’t changed much. Times are changing, networks are changing and now butt sets are changing. No longer are they single-purpose tools but are evolving into full-fledged, multi-functional test sets. Enter Fluke Networks’ newest line of VDV (voice, data and video) telephone test sets. We’ve taken the best features from our existing line, added new technology and totally redesigned them to lighten up your tool belt.
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Product
Transmission Line Pulse Testing
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Transmission Line Pulse testing, or TLP testing, is a method for semiconductor characterization of Electrostatic Discharge (ESD) protection structures. In the Transmission Line Pulse test, high current pulses are applied to the pin under test (PUT) at successively higher levels through a coaxial cable of specified length. The applied pulses are of a current amplitude and duration representative of the Human Body Model (HBM) event (or a Charged Device Model – CDM – event in the case of Very Fast TLP, or VF-TLP).
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Product
Analyzer for Safety Agency Production Line Testing
HypotULTRAIII
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Ethernet Communication CardUSB/RS-232, GPIB & Printer InterfacesData Storage CardInterconnection to Modular Scanning MatrixOptional 10 Volt Analog InterfaceStorage of up to 50 setups with 30 steps per setupPatented SmartGFI® functionPatented prompt and hold functionPatented CAL-ALERT® functionPatented VERI-CHEK® functionReal Current measurementDual Continuity test modesBuilt-in security settingsLine and Load regulation
