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
Subsystems And Line Cards
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Eliminate your risks, lower your costs, and improve your system performance by partnering with a respected world leader in custom line card and subsystem solutions.
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Product
High Line Pressure Transducer with Digital Interface
P368
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The Validyne model P368 is a digital differential pressure transmitter designed for high line pressures and industrial pressure measurement applications. Full scale ranges of 8 psid to 10,000 psid are available. The on-board microprocessor provides high accuracy and improved stability in changing thermal environments. Communication via RS485, USB or CanBus provides remote zero and span adjustment as well as digital pressure readings in engineering units.
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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
Fault Passage Indicator for Lines
LineTroll R400D
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LineTroll R400D Fault Indicator indicates earth- and short-circuit faults and can distinguish between permanent and transient faults. The indicator has two sensors and use both the electrical field and the magnetical field to detect faults on all three phases.
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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
AC Line Separators
ALS-1
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Standard Electric Works Co., Ltd
● x10 Model allows for more accurate measurements of low amperage devices.● Direct reading x1 mode.● 4mm Voltmeter input jacks.● Intergrated ground conductor.● 10 amp capacity.
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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
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
Line Scan Sensors
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The CMOS line scan image sensor family from ams consists of 23 variants, offering a range of resolution and pixel size specifications. Resolution options range from 2kpixels up to 16kpixels and line rates extend up to 80,000 lines/s.
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Product
Platiunum Tools TelScope Telecommunication Line Analyzer Test Set
#TLA300-1
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The TLA300-1 TelScop is a telecommunication line analyzer for POTS butt sets.
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Product
Line Scan Camera
Linea ML
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The Linea ML brings leading edge CMOS technology that is faster than ever, with affordable multiline architecture that enables the newest, most powerful inspection techniques including HDR, color and multispectral analysis, and multi-field imaging (single-pass bright/darkfield). With a native fiber optic interface for easy, low-cost long cabling, the Linea ML opens new horizons in inspection.
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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
Ramp or Flight line Air Data Tet Sets
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The test sets are all digitally controlled through a local or remote keypad and display. The intuitive user interface allows test set functions to be easily controlled with a minimum of key strokes, with all test parameters displayed, and is suitable for both first time and more advanced users. Optionally many of the ADTS can be remotely controlled by a PDA Pocket PC with wireless Bluetooth connection. The intelligent user interface provides protection to both the test set and the UUT. The software rejects entered command values that exceed the pre-selected limit ranges.
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Product
Line Loop Tester
8455
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Simpson?s Model 8455 Line Loop tester detects line shorts, opens and multiple ringers, DC voltages and loop resistance. It can measure DC voltage up to 100 volts and loop resistance to 2 megohms. A front panel ?reverse polarity? switch allows changing polarity positions quicker and easier than manually switching test leads when making line checks.
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Product
TestPort Line Of Hand-Held Ethernet Test Equipment
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The TestPort line of handheld Ethernet protocol test tools represents the state-of-the-art test equipment for telecom backhaul networks. It’s protocol support includes Gigabit Ethernet (GbE), Sychronous Ethernet (SyncE), and E1. Testing applications include protocols analysis, traffic generation, and impairment testing.
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Product
Handsfree Telephone Communication Tester
TestPhone 850
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The TestPhone 850 provides both handset and handsfree telephone communication. The product provides a standard Public Switched Telephone Networks (PSTN) interface, user interface and handset and/or handsfree vocal interface to allow the user to originate or answer standard PSTN calls on both Dual-tone Multi-frequency (DTMF - tone dialling) and Loop Disconnect (LD - pulse dialling) lines. In addition the product features on-hook audio line monitoring, PSTN line polarity indication, automatic on-hook/power-off and integral ADSL digital line filtering.
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Product
Single-in-Line Reed Relays
Series 116
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SIL relays - Smallest board area. 1A version requires 0.15 x 0.27 inches .(3.8mm x 6.8mm). 1 or 2 switches with 10 Watts rating. 5 or 12 Volt coils with optional diode
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Product
Running Line Tensiometer
TIMH
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The TIMH - running line tension meter range are built with dockside, marine, offshore, towage and salvage applications in mind. It is particularly useful where there is no anchor or dead end on the line to rig a Straightpoint Radiolink or Loadlink digital dynamometer to measure tension force.
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Product
- Optically Isolated Line Driver
Model 72A
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FEATURES: DC TO 19.2 KBPS; Optically Isolated; TD & RD LED's; Loopback Switch; Built-In Surge Protection; Male or Female Connectors; Screw Terminals and RJ-11. The Model 72A Optically Isolated Line Driver links RS-232 based devices over extended distances. It provides optical isolation and has built-in verification of operation using a loopback switch.
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Product
End of Line Test System for Automotive Seats
AS519
Test Platform
AS519 is specifically designed to perform ECU’s EOL tests in the automotive industry. It integrates a programmable power supply up to 20V 20A with high reading resolution. Interaction with the DUT is established through CAN bus by an interphase adapter in a USB port of the test managing computer.
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Product
4 Analog Line Appointment Reminder
AR-4FXO
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"Appointment Reminder" appliance can make calls to predefined list of phone numbers at specific times and play custom announcements regarding upcoming appointments or events.
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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
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
AC Line Separator
Model ALS-1
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Kusam Electrical Industries Limited
With the aid of the AC line separator, the AC current from any appliance can be determined by plugging the appliance directly into the separator. By doing so, you are able to separate the neutral from hot / live conductor.
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Product
15T Standard Running Line Monitor
RLM15T-3.0-S
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The DLM 15T Running Line Monitor measures the tension on a rope passing through its three wheels. Typically used in cable laying and winch operations to measure and record line tension the robust design has become an industry standard. The monitor can be supplied as a separate item for integration with customers existing PLC’s or with a DLM digital display/HMI touch screen display.
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Product
RS-232 Line Driver with Control Signals and LCD Display
Model 224
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FEATURES: DataSpy® Status Display; Full Duplex & Handshake; Loopback & DTE/DCE Switch; DC to 19.2 KBPS; Supports DTR & DCD; Optically Isolated. The Model 224 RS-232 Line Driver with Control Signals and LCD Display provides for transmission of a handshake signal in each direction, in addition to communicating full duplex data up to 19.2 KBPS and providing complete optical isolation.
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Product
Narrow Band Digital Signal Delay Lines
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Advanced Science and Novel Technology, Co., Inc.
Narrowband (11GHz-17GHz) tunable clock phase shifterDelay adjustment range of 140psExhibits low jitter and limited temperature variation over industrial temperature range100MHz of bandwidth for the phase adjustment tuning portsIdeal for high speed proof-of-concept prototypingFully differential CML input interfacesFully differential CML output interface with 800mV single-ended swingLinearized data output for minimized undershoot/overshootSingle +3.3V or -3.3V power supplyPower consumption: 0.91WFabricated in SiGe for high performance, yield, and reliabilityStandard MLF/QFN 24-pin package
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Product
RS-232 Fiber Optic Auto Powered Line Driver
Model 271
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FEATURES: Full Duplex to 56 KBPS; 2 Kilometers on 62/125 Fiber; Total Electrical Isolation; Eliminates Noise Problems; ST Connectors; No Power Required. The Model 271 provides feature packed performance and reliability for data transmission over glass fiber.
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Product
RS-232 Micro Line Driver - DB9 Connector
Model 209
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FEATURES: Compatible with PC; 386/486 Pentium Com Ports; Full Duplex to 19.2 KBPS; No AC or DC Power; Screw Terminals or RJ-11; Small Size. The Model 209F offers all the features of the Model 201 Short Haul Modem but in a package that is approximately one third the volume.
