2-wire
resistance measurement method.
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Product
Keysight Dual 4x16 Armature Matrix for 34980A
34932A
Matrix Switch Module
The Keysight 34932A module for the 34980A Multifunction Switch/Measure Unit gives you the most flexible connection path between your device under test and your test equipment, allowing different instruments to be connected to multiple points on your device under test at the same time. Dual 4x16, 8x16, or 4x32 configurations 128 2-wire cross-points 300 V, 1 A switch; 2 A carry current Connections to the internal DMM Latching armature relays, with relay counter Expandable via four 2-wire analog buses
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Product
Emergency/Panic Button
ENVIROMUX-EBS
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Sends activation signal when button is pressed. For normally closed or normally open circuit connections. 2-wire interface. Screw terminal. Maximum cable length: 1,000 ft (305 m). Dimensions WxDxH: 1.7x2.9x4.6 in (43x74x117 mm). Regulatory approvals: RoHS.
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Product
200-Pin Male OR 4X50-Pin To 200-Pin, 60 VDC LFH Switch Cable
779038-01
Switch Cable
The LFH200 cable provides connectivity to the NI PXI-2569, PXI-2570, PXI-2571, PXI-2575, SCXI-1169, and SCXI-1175 switch modules. There are three different options for this cable. All three options have a 200-Pin, Male LFH front end connection. Each option has a different back end connection. The first option has a 200-Pin, Male Bare Wire back end connection. This option is specifically suited for the PXI-2569/70/71 and SCXI-1169. You can use the unterminated ends for custom wiring needs, twisting the channel and common terminals of the PXI-2569 and SCXI-1169 to reduce crosstalk. The second option has 4 50-Pin, Female D-Sub back end connections. This option is specifically suited for the PXI-2569/70/71 and SCXI-1169. The second option uses the same twisted-pair configuration (CH-Com Twisted) but offers 50-pin D-Sub connectivity. The third option also has 4 50-Pin, Female D-Sub back end connections, but it twists the ch+ and ch- terminals (CH-CH Twisted) when used in a 2-wire configuration. This option is specifically suited for the PXI-2575 and SCXI-1175.
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Product
NI TB-2641B Terminal Block for NI 2532B as 1-Wire 8x64 Matrix topology With Column Protection Resistors
782385-04
Terminal Block
The TB-2641B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 4x128 matrix. You can directly connect the TB-2641B to the front panel I/O connectors of the PXI-2532B or PXIe-2532B. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2641B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
Signal Conditioners
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Process transmitters isolate, filter amplify, and convert sensor signals to 4-20mA current or 0-10V voltage signals for interfacing with controllers and other instrumentation. Select from 2-wire loop-powered 4-20mA transmitters, 3-wire DC-powered transmitters, or 4-wire AC/DC-powered transmitters. 3-wire and 4-wire models are available as 4-20mA transmitters or voltage transmitters. DIN-rail and field-mount version are available. Configuration is easy with Windows software, push-buttons, switches, or pots for span/zero settings depending on the series.
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Product
Gas Detectors
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International Gas Detectors Ltd
We offer a vast and versatile product range with detector heads for every possible environment. Pioneering the use of addressable gas detection systems IGD today offer the latest networked systems. Our latest addressable gas detection systems network using IGD’s Sentinel+ 2-Wire protocol for enhanced operation and security. IGD is the home of addressable gas detection but we still offer legacy analogue detectors used to interface to older systems.
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Product
RS232 / RS485 / RS422 / Ethernet Surge Protectors
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Our passive, rugged, industrial-grade RS232 / RS485 / RS422 / Ethernet surge protectors are designed for direct industrial DIN-rail mounting and they come with two (2) or three (3) stages of surge protection — Gas Discharge Tube (GDT), protection resistors, and Transient Voltage Suppressor (TVS) - for maximum protection. From 2-wire RS485, 4-wire RS422 / RS485, to 10 / 100 / 1000M Ethernet, CommFront's surge protectors safeguard your data lines and provide you with a peace of mind.
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Product
Serial Bus Buffers, Extenders, and Accelerators
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The Analog Devices family of I2C solutions support hot swappable, 2-wire bidirectional bus buffers to allow I/O card insertion into a live backplane without corruption of the data and clock busses. Additional supported 2-wire buses include SMBus, PMBus, the ATCA intelligent platform management bus (IPMB), and the HDMI DDC bus. I2C/SMBus Accelerators improve bus transitions to allows multiple device connections or a longer, more capacitive interconnect, without compromising slew rates or bus performance. ADI's software-programmable and pin-selectable I2C multiplexers help resolve I2C address limitations, increase fan-in or fan-out, and integrate bus buffers and rise time accelerators for an all-in-one solution. Resistor configurable I2C address translators can be configured with over 100 unique slave addresses to allow multiple slave devices with the same address to coexist on the same bus.
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Product
Door Contact Sensor
ENVIROMUX-M-DCS
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Monitors access with a magnetic bridge sensor, which responds to any magnetic material (no special inserts necessary). Can also be used for monitoring side wall and covers. Includes mounting hardware. For normally closed circuit connection. 2-wire interface. Screw terminal. Maximum cable length: 1,000 ft. Wide actuating gap, approximately 1". Dimensions WxDxH (in): 0.5x0.5x2 (Switch), 0.5x0.5x2 (Magnet). Operating temperature: 32 to 158°F (0 to 70°C). Regulatory approvals: RoHS.
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Product
200-Pin Male OR 4X50-Pin To 200-Pin, 60 VDC LFH Switch Cable
783139-02
Switch Cable
The LFH200 cable provides connectivity to the NI PXI-2569, PXI-2570, PXI-2571, PXI-2575, SCXI-1169, and SCXI-1175 switch modules. There are three different options for this cable. All three options have a 200-Pin, Male LFH front end connection. Each option has a different back end connection. The first option has a 200-Pin, Male Bare Wire back end connection. This option is specifically suited for the PXI-2569/70/71 and SCXI-1169. You can use the unterminated ends for custom wiring needs, twisting the channel and common terminals of the PXI-2569 and SCXI-1169 to reduce crosstalk. The second option has 4 50-Pin, Female D-Sub back end connections. This option is specifically suited for the PXI-2569/70/71 and SCXI-1169. The second option uses the same twisted-pair configuration (CH-Com Twisted) but offers 50-pin D-Sub connectivity. The third option also has 4 50-Pin, Female D-Sub back end connections, but it twists the ch+ and ch- terminals (CH-CH Twisted) when used in a 2-wire configuration. This option is specifically suited for the PXI-2575 and SCXI-1175.
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Product
Interface
RCEI-530
Interface
Available in a range of configurations to match your needs, the RCEI-530 provides complete, integrated databus functionality for ARINC 429, ARINC 575 and selected 2-wire, 32-bit protocols. The RCEI-530 supports maximum data throughput on all channels while providing onboard message scheduling, label filtering, multiple buffering options, time-tagging, error detection and avionics-level I/O discretes, with support for either 33 MHz or 66 MHz PCI interfaces.
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Product
Banana-Triax Adapter For 4‑Wire (Kelvin) Connection
N1297B
Accessory Kit
The N1297 Series is a collection of banana-triax adapters for the Keysight B2900 Series precision source measure unit (SMU). It consists of both 2-wire as well as 4-wire connection requirements.
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Product
16-Channel Multiplexer (2 / 4-Wire) Module for DAQ970A and DAQ973A
DAQM902A
Multiplexer Module
DAQM902A 16 Channel Multiplexer (2/4-wire) Module. Reed relays with high voltage switching of up to 300 V and scan speed up to 250 ch/s.
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Product
20 Channel Multiplexer (2/4-wire) Module for 34970A/34972A
34901A
Multiplexer Module
The Keysight 34901A module for the 34970A/34972A Data Acquisition/Switch Unit is the most versatile multiplexer for general purpose scanning. It combines dense, multi-function switching with 60 channel/second scan rates to address a broad spectrum of data acquisition applications.














