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Supplier: TelephoneStuff.com
Description: Telephone Signaler will signal if the phone is ringing by flashing a lamp on/off automatically. Easy installation. Also, it works with any Video Relay. Features: - Ideal for the deaf and hard of hearing and for use in a noisy or quiet environment - Turn lamp On/OFF via the lamp
- Phone Type: Telephone
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Description: telephone line Magnetic reed hook switch to reduce parts subject to wear Factory set to tone (DTMF) Operation Pulse dialing can be software configured in the field, 40:60 or 33:66 Removable handset retainer latches on cradle Urethane-coated watertight silicon
- Phone Type: Telephone
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Description: “Full” duplex voice operation PoE 802.3af enabled (Power-over-Ethernet ) or alternate power source Compatible with SIP RFC 3261 compliant IP-PBX and Cloud-based servers Auxiliary Relay to control external devices with multiple control modes
- Phone Type: Telephone
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Supplier: TelephoneStuff.com
Description: - Built in ring detect relay to switch up to 240 V @ 5A - 20 number memory including 10 quick dial - Programmable auto hang-up timer - Two M20 and one M12 access ports - Field repairable by authorized personnel - Does not require external power – operates on telephone line
- Phone Type: Telephone
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Supplier: TelephoneStuff.com
Description: heavy duty handset - Heavy duty coil curly handset cord - Built in ring detect relay to switch up to 240 V @ 5A - Back lit LCD display – 2 line x 16 character: English, French, or Spanish - 20 number memory including 10 quick dial - Programmable auto hang-up timer - Two M20
- Phone Type: Telephone
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Supplier: TelephoneStuff.com
Description: heavy duty handset - Heavy duty coil curly handset cord - Built in ring detect relay to switch up to 240 V @ 5A - Back lit LCD display – 2 line x 16 character: English, French, or Spanish - 20 number memory including 10 quick dial - Programmable auto hang-up timer - Two M20
- Phone Type: Telephone
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Supplier: Visual Sound, Inc.
Description: , completely eliminating the need for manual activation of switches and the use of external relays. The page channel features automatic output leveling (ALC) as channel input varies, which is particularly important in telephone paging applications, where persons with varying
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Supplier: Americor Electronics, Ltd.
Description: Power relays from Americor Electronics, Ltd. are dependable and cost efficient. A power relay is a switch that uses a magnetic coil to open or close a circuit. Power relays have many applications. We offer many relay configurations that operate at various currents
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Supplier: Americor Electronics, Ltd.
Description: Power relays from Americor Electronics, Ltd. are dependable and cost efficient. A power relay is a switch that uses a magnetic coil to open or close a circuit. Power relays have many applications. We offer many relay configurations that operate at various currents
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Supplier: Littelfuse, Inc.
Description: Relays control circuits through a low-power signal. An electro-magnetic current actuates the relay, creating a closed circuit within the device. General purpose relays are used in applications including HVAC systems, standby power supplies and telephone exchanges. We
- DC Coil Voltage: 24 volts
- Maximum AC Switching Voltage: 24 volts
- Mounting: Other
- Operating Temperature: -67 to 257 F
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Supplier: Littelfuse, Inc.
Description: Relays control circuits through a low-power signal. An electro-magnetic current actuates the relay, creating a closed circuit within the device. General purpose relays are used in applications including HVAC systems, standby power supplies and telephone exchanges. We
- DC Coil Voltage: 24 volts
- Maximum AC Switching Voltage: 24 volts
- Mounting: Other
- Operating Temperature: -40 to 149 F
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Supplier: Data Connect Enterprise, Inc.
Description: – Telnet Command Line Interface – Web switch management – SNMP v1, v2c, v3 switch management – SSL switch management DHCP client for IP address assignment Link Layer Discovery Protocol (LLDP) for easy network management DHCP Option82 and DHCP Relay
- Data Rate: 0.1000 Gbps
- Equipment Type: Switch
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Supplier: Littelfuse, Inc.
Description: . Available in surface mount version (MDSM-10). Ideally suited for reed relay applications, security, metering, limit sensing and telephone off-hook applications. Features: Normally open switch capable of switching 200Vdc or 0.5A at up to 10 Watts Available sensitivity
- AC Voltage Rating: 140 volts
- Configuration: Normally Open (NO)
- Current Rating: 0.3500 amps
- DC Voltage Rating: 200 volts
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Supplier: Littelfuse, Inc.
Description: . Ideally suited for reed relay applications, security, metering, limit sensing and telephone off-hook applications. Features: Normally open switch capable of switching 200Vdc or 0.5A at up to 10 Watts Available sensitivity range of 10-25 AT Benefits: Hermetically sealed
- AC Voltage Rating: 140 volts
- Configuration: Normally Open (NO)
- Current Rating: 0.3500 amps
- DC Voltage Rating: 200 volts
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Supplier: Data Connect Enterprise, Inc.
Description: – SNMP v1, v2c, v3 switch management – SSL switch management DHCP client for IP address assignment DHCP Option 82 and DHCP Relay SNTP (Simple Network Time Protocol) Built-in Trivial File Transfer Protocol (TFTP) client Firmware upgrade via TFTP or
- Equipment Type: Switch
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Supplier: RS Components, Ltd.
Description: Optoelectronic photoMOS relay with MOSFET output stage with SIL casing. Applications: telephone and measuring equipment, high-speed communication systems and industrial robots. Maximum Load Current = 2.7 A Mounting Type = PCB Mount Minimum Load Voltage = 0 V Maximum Load Voltage
- Input (Pick-up) Voltage Range: 30 volts
- Load Voltage: 60 volts
- Mounting: PC Board
- Turn-on Switching: Other
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Supplier: RS Components, Ltd.
Description: These single pole solid state relays have normally open (1-Form-A) contacts and have an integrated current limit feature. They can be used to replace electromechanical relays while enhancing the robustness of wireline-interface applications. Ideal for the international hook
- Mounting: PC Board
- Operating Temperature: -40 to 185 F
- Turn-on Switching: Other
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Supplier: RS Components, Ltd.
Description: These single pole solid state relays have normally open (1-Form-A) contacts and have an integrated current limit feature. They can be used to replace electromechanical relays while enhancing the robustness of wireline-interface applications. Ideal for the international hook
- Load Voltage: 600 volts
- Mounting: PC Board
- Turn-on Switching: Other
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Supplier: RS Components, Ltd.
Description: These single pole solid state relays have normally open (1-Form-A) contacts and have an integrated current limit feature. They can be used to replace electromechanical relays while enhancing the robustness of wireline-interface applications. Ideal for the international hook
- Load Voltage: 350 volts
- Mounting: PC Board
- Turn-on Switching: Other
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Supplier: OTEK Corporation
Description: DPC offers serial communication for RS232, 422, 485, CAN, USB, ModBUS, Telephone modem with auto-dialer, and Ethernet, located behind the panel. Standard and custom signal conditioners are available, OTEK offers 4-20mA, V, and mADC as standard and Hz, true RMS, S-G, TC, RTD, Humidity, p
- Control Signal Output: Current Loop, Switch / Relay Output
- Controller Inputs: DC Voltage Input, Current Loop (Transmitter) Input, Frequency Input
- Form Factor: DIN Rail
- General: Datalogger
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Supplier: Data Connect Enterprise, Inc.
Description: NetVanta 7100 1200796E1 is a complete IP telephony and data networking solution for business locations up to 50 employees. This all-in-one platform includes an IP PBX, voicemail, full-featured IP router, firewall, VPN, 24-port powered (802.3af) Fast Ethernet switch with Gigabit uplinks
- Area Network Type: Local Area Network (LAN), Wide Area Network (WAN)
- Features: Power-over-Ethernet (PoE) Ready
- Number of Ports: 41 #
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Supplier: RainWise, Inc.
Description: ) within TROPOS, and can also be viewed on the LC display in real time. TROPOS has a storage capacity on the CF card for around one year on average. Data transfer is possible by means of the CF card, or via RS 232 to a PC or laptop. Optional items can also be used including RS 485, GSM and
- Application: Environmental
- Application Software Included: Yes
- Connection to Host: RS232/422/485
- Form Factor: DIN Rail
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Supplier: Silicon Labs
Description: the Public Switched Telephone Network (PSTN). Other features include parallel phone detection, line-in-use monitoring, global caller ID, data/fax/voice discrimination, V.253 event reporting and excellent surge immunity. For applications that require a telephone handset, the
- Device Type: Modem
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Supplier: Gefran
Description: incorporated PID controller (optional) directly acquires the signal from the thermocouple or resistance thermometer and controls power by means of double SCR junctions, and provides physical Relay/ Logic outputs for alarms and/or cooling functions. Current levels range from 40A to 250A,
- Control Signal Output: Analog Voltage, Current Loop, Switch / Relay Output
- Control Technique: Limit / Set Point Control, PID Control
- Controller Inputs: DC Voltage Input, Current Loop (Transmitter) Input, Resistive / Potentiometer Input, Serial / Digital Input
- Form Factor: Panel / Chassis Mount
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Supplier: Allied Electronics, Inc.
Description: type package designed for applications requiring electrical isolation, high breakdown voltage, and high current transfer ratios. Characterized for use as telephone relay drivers but provides excellent performance in interfacing and coupling systems, phase and feedback controls, solid
- Collector Emitter Breakdown Voltage: 80 volts
- Isolation Voltage: 7500 volts
- Mounting Option: Surface Mount
- Operating Temperature: -55 to 100 C
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Supplier: Nexperia B.V.
Description: N-channel enhancement mode Field-Effect Transistor (FET) in a small SOT23 (TO-236AB) Surface-Mounted Device (SMD) plastic package using Trench MOSFET technology. Features and benefits Trench MOSFET technology Extremely fast switching Logic level compatible Subminiature surface mounting
- Package Type: SOT23, Other
- Transistor Type: MOSFET
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Supplier: Minerallac Company
Description: CLEAR NO RESIDUE COLOR REMOVES DIRT, OIL AND GREASE FROM SENSITIVE EQUIPMENT, PRECISION INSTRUMENTS, PRINTED CIRCUITS, CAMERAS, TELEPHONE SWITCH GEARS, VACUUM TUBE PARTS, RELAYS AND SWITCHES, WATCHES AND CLOCKS, RADAR EQUIPMENT, METERS, OFFICE MACHINES APPLICATION CAN
- Industry Applications: Electrical / Electronics
- Type: Cleaner / Cleaning Agent
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Supplier: Allied Electronics, Inc.
Description: Open Relay Racks, 12 ga. Steel Material, 650 lbs. Load Rating Ideal for installations where easy access to components is a top priority. Each built for years of solid, trouble-free service, as well as obvious ease of service where frequency attention is desired (i.e. telephone
- Length / Height: 81.12 inch
- Material: Steel
- Mounting: Open Frame Rack
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Supplier: Allied Electronics, Inc.
Description: Open Relay Racks, 12 ga. Steel Material, 650 lbs. Load Rating Ideal for installations where easy access to components is a top priority. Each built for years of solid, trouble-free service, as well as obvious ease of service where frequency attention is desired (i.e. telephone
- Length / Height: 40.88 inch
- Material: Steel
- Mounting: Open Frame Rack
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Supplier: Allied Electronics, Inc.
Description: Open Relay Racks, 12 ga. Steel Material, 650 lbs. Load Rating Ideal for installations where easy access to components is a top priority. Each built for years of solid, trouble-free service, as well as obvious ease of service where frequency attention is desired (i.e. telephone
- Length / Height: 81.12 inch
- Material: Steel
- Mounting: Open Frame Rack
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Supplier: Nexperia B.V.
Description: interface to Complementary (C-MOS) transitor and Transistor-Transisto r Logic (TTL) devices Very fast switching No secondary breakdown Applications Line current interruptors in telephone sets Relay, high-speed and line transformer drivers
- Package Type: SOT223, Other
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Supplier: IEEE Communications Society
Description: ; underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier
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Supplier: Visual Sound, Inc.
Description: upper lip. The push-to talk switch is located on the top of the microphone housing. The RK-56 is equipped with a six-conductor, black-coiled cord which is relieved at the microphone housing by a telephone type strain relief grommet. The cord may be wired for either relay or
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Supplier: Visual Sound, Inc.
Description: upper lip. The push-to talk switch is located on the top of the microphone housing. The RK-56 is equipped with a six-conductor, black-coiled cord which is relieved at the microphone housing by a telephone type strain relief grommet. The cord may be wired for either relay or
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Supplier: Visual Sound, Inc.
Description: upper lip. The push-to talk switch is located on the top of the microphone housing. The RK-56 is equipped with a six-conductor, black-coiled cord which is relieved at the microphone housing by a telephone type strain relief grommet. The cord may be wired for either relay or
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Supplier: Data Connect Enterprise, Inc.
Description: Providing a high-density seamless link between the circuit-switched telephone network and voice-over-IP, the SN4960 is ideal for PBX business trunking or corporate VoIP access. Offering up to four software configurable T1/E1/PRI interfaces the SN4960 connects to any switch, PBX
- Equipment Type: Gateway
- Features: Integrated Firewall
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automated so that the sequence happens with little or no manual input. Using limit switches or relays allows a whole series of events to occur based on a preceding event. Remote Locations: Valves which are some distance away from the operator who must cycle (read more)
Browse Ball Valves Datasheets for DynaQuip Controls
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The Basic Reed Switch
. In the late 1940s Western Electric began using reed relays in their central office telephone switching stations, where they are still used in some areas. today. The reed switch greatly contributed to the. development of telecommunications technology.
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Technical Paper: Reed Switch Operational Characteristics (.pdf)
. In the late 1940s Western Electric began using Reed Relays in their central office telephone switching stations, where they are still used in some areas today. The Reed Switch greatly contributed to the development of telecommunications technology