Telephone
convert voiced sound to an electric signal for transmission over a network.
See Also: Phone, Telephony, Geophones, Headphone, Hydrophones, Microphones, DTMF
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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
Telephone Line Tester for ISDN Lines
1EA065
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ISDN line checker shows the correctness of your ISDN So bus line connections. Indication of the problem is presented with 4 LED (combination of them shows different states and working conditions of the ISDN So bus). The tester uses Phantom power - no need for additional power supplay.
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Product
Digital Telephone Hybrid
DMTH4
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The DMTH4 integrates telephone lines, video codecs and external audio sources into the digital bus structure of DM Series processors so these sources operate as though they are another microphone or audio input in the sound system. The unit is much more than just a telephone interface. Instead, it is a complete DM Series digital matrix processor, with a 3-in/24-out digital matrix, automatic mixing and comprehensive signal processing on every input and output. In essence, it simply connects to telephone lines, video codecs and external audio sources instead of mic/line inputs and outputs and integrates seamlessly with DM Series matrix processors.
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Product
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
Fixed Telephone Communication
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PBE provides Fixed Phone Voice Communication for safe, efficient and reliable underground operation.Two-way voice communication underground is a necessity to provide a safe and productive work environment. PBE offers a number of fixed phone solutions that can be deployed to provide secure voice communications. Solutions can be analogue or digital and be either stand-alone or integrated into PBX and mobile infrastructure.PBE Fixed Telephones provide clear and undistorted communication throughout the entire underground phone system. PBE telephone networks are compatible with other analog and VoIP phones on the market today which allows to combine different products for a complete communication system above and below the ground.
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Product
Dual Telephone Line Tester
NT-6006
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This tool is for testing the condition of dual telephone line jacks. Multicolor LED indicator light alerts to okay line, reversed line, AC Voltage present and dead line. Fits in shirt pocket.
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Product
Telephone Wire Cable Tester For Testing Continuity With Sender And Receiver
PHCT55
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The PHCT55 is a two-piece item that tests telephone wire continuity. Play a test tone on one end and listen on the other, judge continuity, and diagnose break points.
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Product
Telephone Line, PCM and Other Copper Wire Tester
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Wuhan Sunma Technology Co., Ltd.
SunmaFiber Tel Line, PCM and Other Copper Wire Tester is developed for the fault testing of local telephone circuit using internationally advanced measuring technique in connection with the current situation of domestic telephone network. The instrument is of portable structure, and specially designed for the use of telecom and exchanger room operating staffs, line attendants, mobile phone servicing staffs and etc.
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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
Dial Up Modem Test
ModemTest 1.3
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Test your dial up modem and telephone line for errors and connection speed. A local loopback test is provided as well as a master / slave test. The master / slave test requires 2 modems and 2 telephone lines. ModemTest is compatible with most dial up modems. (9.6 - 56Kbits)
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Product
Cable Tracing
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High-power tone generator enables signal detection over 20 miles away and makes tracing through walls and enclosures easier with multiple tones and power levels suited for network, signal wire, coax, and telephone cable applications.
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Product
VHF/UHF Handheld Signal Location Antennas
Type NVF-2
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The Type NVF-2 series of handheld directional antennas are used to locate interfering signals or noise in either the 420 – 470 MHz (Type NVF-2A) or the 900 MHz ISM band or cellular telephone bands (Type NVF-2B). Both models incorporate a solid reflector positioned behind a resonated half wave driven element, both elements being mounted on a fiberglass rod with an integral pistol grip. The configuration of the reflector and driven element are such that a deep null in the signal being received will occur when the antenna is pointed in the direction of the signal being radiated. A T-pad resistive attenuator is also incorporated in the antenna mounting enclosure to aid in the direction finding process on very strong signals or when excessive reflections present multiple returns.
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Product
Mobile Communications DC Source, 15V, 3A
66311B
Battery Simulator
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.The Keysight 66311B mobile communications DC source provides fast transient, exceptional sourcing, and precision measurement.
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Product
DC Insulation Testing
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Weshine Electric Manufacturing Co., Ltd
Cable harness tester is used for test and measure wire cable harness,wire harness, like as : auto cable, audio cable, power cable, network cable, telephone cable, USD cable, HDMI cable,video cable, etc. .
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Product
Compliance Testing
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American Environments Co., Inc.
The American Environments Company, Inc. (AECO) provides comprehensive compliance testing services. Our laboratory is fully equipped to provide Electromagnetic Testing, Environmental Simulation Testing and Dynamic Testing. Compliance requirements are related to the marketplace being serviced. AECO provides compliance services for: Products Exported to Europe, FCC, Telephone Network Equipment and Medical Devices.
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Product
Dual Mobile Communications DC Source w/ DVM
66309D
DC Power Supply
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.The Keysight 66309D dual output mobile communications dc source provides two outputs for testing both the main battery power and the battery charger circuitry, allowing customers to test phones and chargers with the same equipment. This feature helps save on rack space (2 outputs in a half rack box) and eliminates the need for two separate power supplies.The 66309D dc source provides all of the capabilities of the 66309B with the addition of a built in digital voltmeter.
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Product
Line Tester
LT51
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The LT51 Line Tester is a portable handheld battery powered instrument for Data, DSL, Telephone, Voice Copper Line testing. It combines the features of several pieces of test equipment such as a Level Meter / Spectrum Analyser, Distortion Analyser, Oscillator, Handheld DMM and TDR in the one small lightweight package.
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Product
Satellite Communications
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Honeywell Aerospace Technologies
Our satellite communications solutions offer passengers and flight crew reliable voice, fax and high speed data communications throughout the world. Our multi-channel satellite communications systems offer 2 to 7 classic Inmarsat (Aero H, H+ and I) connection to the ground providing simultaneous, independent voice calls, faxes and/or modem transmissions worldwide. These systems provide first-call connection with the clarity and uninterrupted signal of a digital office telephone.
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Product
Cable Fault Locator-TDR
TM800N
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TM800N Cable Fault Locator (hereinafter to be referred as TM800N) is used for test est cable break, short circuit faults of telephone cable, data cable, high frequency cable, coaxial cable,and so on.
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Product
Open Circuit Locator
A994
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The A994 is an open circuit locator for electric and telephone cables wind on the reel; it gives the position of the fault from the inside or outside end of the cable, in percentage to the total cable length. The instrument measures the ratio of the capacitances of the two sections of failed conductor using two high precision i/v converters. The advantage of this method is due to the fact that the measurement error depends almost exclusively on the dimensional inhomogeneity of the cable. The A994 has the unique feature to permit the location of fault in cables with all broken wires. This instrument locates breaks in cables with a total capacity between 2 nF and 5 uF. The distance to fault is displayed on a large LCD display.
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Product
VoIP Measurement Technology
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Nextragen Solutions has developed a measurement method that analyzes the entire End2End network infrastructure across all data streams. Quality assurance begins with us even before a VoIP telephone system is put into operation.
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Product
Countermeasures Amplifier
CMA-100
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CMA-100 Countermeasures Amplifier is a high gain audio amplifier used to detect and identify certain types of surveillance devices attached to building wiring such as telephone wiring, LAN and server systems, AC power, and alarm wire. The CMA-100 Countermeasures Amplifier functions employ a sophisticated automatic gain control circuit that is superior to most audio amplifiers.
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Product
8 Port Phone Line Simulator (FXS) Adv
CH-8FXS-A
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This unit has 8 analog phone lines (FXS) making it a perfect tool for testing VoIP gateways, IVR, modems, access servers, audio conference equipment or anything that requires phone lines. Telephone line simulator acts like a "telephone company in a box" providing dial tone, ring voltage and all advanced phone line features such Caller ID, Call Waiting, Call Hold, Three Way Calling and many others.
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Product
Cable Detectors
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PeakTech Prüf- und Messtechnik GmbH
This cable detector works acoustically and offers a quick and inexpensive solution to find voltage-free lines in the house installation, to test telephone lines, to identify individual cables / wires or to carry out a continuity test.
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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
4 Port Analog Phone Line (FXS)
SIM-4FXS
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This unit has 4 analog phone lines (FXS) making it a perfect tool for testing VoIP gateways, IVR, modems, access servers, audio conference equipment or anything that requires phone lines. Telephone line simulator acts like a "telephone company in a box" providing dial tone, ring voltage and all advanced phone line features such Caller ID, Call Waiting, Call Hold, Three Way Calling and many others.
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2 Port Phone Line Simulator (FXS) Adv
SIM-2FXS-A
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This unit has 2 analog phone lines (FXS) making it a perfect tool for testing VoIP gateways, IVR, modems, access servers, audio conference equipment or anything that requires phone lines. Telephone line simulator acts like a "telephone company in a box" providing dial tone, ring voltage and all advanced phone line features such Caller ID, Call Waiting, Call Hold, Three Way Calling and many others.
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Product
Multimeter with Cable Checker Phone Test Lan Wire Test
VA43
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Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
Lan Telephone test multimeter: VA43 is a multimeter with lan wire test. phone test .cable check.
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Product
PCI Express PoE Card
AX93330
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The AX93330 PoE (Power over Ethernet) card supports 4 independent 10/100/1000BaseT 802.3AT compliant Ethernet ports. It provides 48VDC at PoE ports and has wide temperature from -40°C ~ 85°C on module. It allows power to be supplied to connect devices that allows IP telephones, wireless LAN Access Points and security network cameras.
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Product
Outdoor AGC Optical Node
SR812
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Hangzhou Softel Optic Co., Ltd.
Based on plenty of experience about CATV HFC network optical fiber transmission equipment, we developed SR812, SR812B, SR814, SR814B series field optical receiver which is two-way optical receiver; They are mainly used in long-distance optical fiber transmission of TV image signal, digital TV signal, telephone voice signal and data (or compressed data) signal. We are innovating the product technology, rebuilding the line structure and Improving the process quality since we developed the first CATV optical receiver successfully in 1995; The current WR series optical receiver are not only of the lead position in domestic level regarding line technique, but also the same as imported product regarding technological quality; We have developed a variety of different models for users to choose models.
