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Telephone

convert voiced sound to an electric signal for transmission over a network.

See Also: Phone, Telephony, Geophones, Headphone, Hydrophones, Microphones, DTMF


Showing results: 91 - 105 of 132 items found.

  • PSTN Network Analyzers

    E1 & T1, Data, DSL, Protocols, BER Analyzers - GAO Tek Inc.

    With 20 years of experience in the development and production of test instruments, GAOTek is proud to provide a large selection of PSTN analyzers that meet the requirements of technicians working in the telecom industry for sale to the United States, Canada and Globally. Public Switched Telephone Network (PSTN) was designed to ease the two-way communication between two points or two users. In the beginning, a direct connection between two points was very simple, however the cost was too high depending on the distance and geography. The network engineers revolutionized voice communications by creating PSTN which is still in use today.

  • Telecommunication Networks

    Sri Comm Instruments Sdn Bhd

    Switching systems are the nerve centre of any telecommunications network, providing interconnectivity for the various users of the network. Sri Comm has been very active in this core component, installing over 40 telephone exchanges throughout the country since 1975. Various types of exchanges including electromechanical, ESK and stored programme or computerized exchanges have been installed over the years. In total some 400,000 subscribers have benefited from these projects. More recently, systems incorporating technologies involving DDN, AN and FMK systems have also been implemented.

  • Cable Tracers

    Extech Instruments Corporation

    Identifies wire pairs, check continuity and test telephone line polarity. Transmitter has output cables terminated in modular RJ11 phone connector. The non-contact amplifier probe audibly identifies the selected wire or cable so that you can easily trace from source to termination. Comes complete with Wire Tracer Probe and Transmitter with RJ11 phone connector, a pair of alligator clips and two 9V batteries.

  • Open Circuit Locator

    A994 - AGM Elettronica

    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.

  • Passive FTTx

    Shenzhen Wiitek Technology Co.,Ltd

    Fiber to the x (FTTX; also spelled "fibre") or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunications. As fiber optic cables are able to carry much more data than copper cables, especially over long distances, copper telephone networks built in the 20th century are being replaced by fiber.

  • Network Toner & Probe Kit

    MT-7028 - Prokit's Industries Co., Ltd.

    The MT-7028 lets you easily locate and verify the cable status and troubleshoot wiring for continuity, shorts, opens and crossover on RJ45 Lan cable Cat 55e67 (UTP/STP)RJ11/12 Telephone cable Cat. 3 (2/4/6 pin) & normal solid/Stranded wire by alligator clips patch cord. Ideal for all installation and maintenance fields of telecommunication, networking, datacom, Audio/Video, cable TV, and all weather cabling, etc.

  • Configurable Relay Matrix Module

    DP-cPCI-4341 - Data Patterns Pvt. Ltd.

    DP-cPCI-4341 is a Hot-Swappable Configurable Relay Matrix Module. The relays can be operated separately or all at once. The Form A relays can be used to switch voltage signals upto 200V DC. The inputs and outputs are brought out to the fascia for high flexibility. Use of rugged connectors for field terminations ensures long-term reliability. Applications of the module include automatic test equipment, continuity testing, audio telephone line switching and data acquisition system.

  • Network Management

    Neuron System - East Photonics, Inc.

    Integrated management: Displaying current status of optical cable installation and location of fault using GIS - Facility management: Establishment of database as to the information of such physical communication facilities as communication device, cable, manhole, and telephone pole.- Recovery management: Enabling quick recovery by sending maintenance personnel to exact location in the event of fault.- Preventive management: Providing preventive measure against fault by prediction of fault due to heat deterioration of optical cable.

  • Satellite Communications

    Honeywell Aerospace

    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.

  • Wire Tracer Kit

    Extech TG20 - Extech Instruments Corporation

    The TG20 Wire Tracer Kit identifies wire pairs, check continuity and test telephone line polarity. Transmitter has output cables terminated in modular RJ11 phone connector. The non-contact amplifier probe audibly identifies the selected wire or cable so that you can easily trace from source to termination. Comes complete with Wire Tracer Probe and Transmitter with RJ11 phone connector, a pair of alligator clips and two 9V batteries.

  • Lawful Interception

    Shoghi Communications Ltd.

    Lawful Interception is the legally sanctioned official surveillance of private communications, such as telephone calls, SMS and Email messages etc. It is a security process which allows service providers to support law enforcement agencies to identify, monitor and deliver all electronic communication of specified individuals and groups when requested. Shoghi’s Lawful Interception solutions focus on officially intercepting private communications to support legal and/or criminal investigations. The lawful interception solution offered by us covers all available networks such as fixed line network, cellular networks and Internet networks. Shoghi Lawful Interception solution is capable of lawfully intercepting, storing and analyzing communication content.

  • Tone & Probe Kits

    Triplett Test Equipment & Tools

    ProTone Wire Locator Kit features a powerful tone generator and a filtered, ultra-bright lighted probe. The CTX590 functions as a high quality wire locating tool that uses an inductive probe to sense a tone placed on the wires by its associated tone generator. The tone generator provides RJ11, RJ45 and insulated alligator clip connections. The Red/Green LED on the probe indicates continuity, voltage, and polarity. The probe also includes an ultra bright LED tip, fluorescent light noise filter and sensitivity control. The CTX590 can be used for tracking down short circuits, telephone central office connections, and other wire locating applications. Includes (2) 9V batteries and case.

  • Power Over Ethernet (PoE)

    Microchip Technology Inc.

    Power over Ethernet (PoE) is a revolutionary technology that enables delivery of power over standard Ethernet infrastructure to facilitate quick and easy installation of WLAN access points, network cameras, IP telephones and other IP-based devices. The proliferation of Ethernet-connected devices such as Pan-Tilt-Zoom (PTZ) security cameras, 802.11ac and 802.11ax access points, LED luminaires and Internet of Things (IoT) appliances has created an unprecedented demand for more power. PoE is the key to efficiently, cost-effectively and reliably power network devices.

  • Cable Management Tools and Testers

    C2G, Lastar, Inc.

    For anything compture repair and workstation installation tool, you've come to the right place. C2G carries a variety of cable tools and testers for network, coaxial, electrical, F-type, PC, telephone, and fiber cables. Our crimp tools are also available for RCA, BNC, F-type, RJ45, RJ11, RJ12, and flat ribbon connectors. C2G cable cutting tools can be used to cut a range of wiring types, from RG6 and RG59 coax, speaker wire, UTP network cable, flat ribbon, and more.

  • Dual Mobile Comm DC Source w/ Battery Emulation, DVM

    66319D - Keysight Technologies

    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.

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