RS485
Serial communication line supporting 32 devices.
See Also: Serial Communications, I2C, RS232, RS422
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Product
RS232 / RS485 / RS422 / TTL Serial Converters
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Rated to perform at temperatures between -40°F and 185°F (-40°C and 85°C), our rugged industrial-grade RS232 / RS485 / RS422 / TTL serial converters are almost indestructible. These industrial-grade serial converter products support multi-drop RS485 / RS422 networks and come with 600W surge protection, 15KV ESD protection, selectable end-of-line terminators, and optional 2500V opto-isolation circuitry, which ensure crisp data signals without interference for all types of installations.
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Product
RS232 RS485 RS422 Serial To Ethernet Modbus Converters / Device Servers
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In the past two decades, legacy serial communication protocols such as Modbus have merged rapidly with modern TCP/IP communication, yielding benefits including widely available infrastructures and greater distance, reliability, and flexibility. CommFront offers a range of industry-proven, easy-to-use serial to Ethernet converters and device servers, both hardware and software types. The applications of our serial to Ethernet converters include acting as a device server or a Modbus RTU/ASCII to Modbus TCP protocol converter; extending serial ( RS232 / RS485 / RS422 / TTL) communication distance over Ethernet network; controlling serial devices from remote Modbus TCP software or Modbus RTU master via Ethernet network; making a wide variety of M2M communication applications possible by enabling client access independent of any operating system or proprietary protocol; and converting conventional serial data network into TCP/IP network, etc.
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Product
RS485 Mode SI-module With Optical Isolation
MX485-G
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RS485 mode SI-module with optical isolation
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Product
GPIB-RS485/RS422 GPIB Instrument Control Device - Taiwan 110VAC
779733-11
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The GPIB‑RS485 is an IEEE 488 controller device for PCs with RS485 or RS422 ports. You can use this device to integrate an instrument into your system using GPIB. This device transforms a computer with an RS485 or RS422 serial port into a talker, listener, or controller on the GPIB bus. It can also interface RS485 and RS422 instruments and peripherals to the GPIB bus. It can implement the physical and electrical specifications of the IEEE 488, RS485, and RS422 standards, as well as interpret and execute high-level commands from the serial port, including serial‑to‑GPIB, and GPIB‑to‑serial protocol conversions. This device is IEEE 488.2 compatible. The device includes a license for the NI‑488.2 driver software, providing maximum reliability for connecting to third-party instruments with GPIB.
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Product
RS485 Null-Modem Cable, DB-9 Female to DB-9 Female, 4m
183283-04
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9-Pin Female DB-9 to 9-Pin Female DB-9 Serial Cable - The 9F-9F Serial Cable, sometimes referred to as GPIB Serial Cable, connects and controls GPIB devices using RS232 and RS485 serial ports. The 9F-9F Serial Cable is offered in different lengths.
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Product
IRIG-B TTL TO RS485 Converter
SPC - INS - 1010
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Signals & Systems India Private Limited
The IRIG-B TTL signal is a time synchronization protocol that can be transmitted up to 50m maximum using coaxial cable. So the relay which is to be received the IRIG-B TTL signal may be far away from the IRIG-B source. The relay may be not able to synchronize with the GPS. To avoid such an incident in the field, some of the relays have provision to receive IRIG-B RS485 signal. The IRIG-B RS485 signal can able travel up to 1200m without any booster. All Time source equipment may not be supplied with IRIG-B RS485 signal output. The converter will act as a bridge between GPS Time source and Relays for time synchronization.
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Product
RS485 Remote Display Indicator
CS1-8
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CS1-8 has been designed for remote display by RS485 (Modbus RTU Mode) interface.
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Product
GPIB-RS485/RS422 GPIB Instrument Control Device - Brazil 127-220VAC
779733-12
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The GPIB‑RS485 is an IEEE 488 controller device for PCs with RS485 or RS422 ports. You can use this device to integrate an instrument into your system using GPIB. This device transforms a computer with an RS485 or RS422 serial port into a talker, listener, or controller on the GPIB bus. It can also interface RS485 and RS422 instruments and peripherals to the GPIB bus. It can implement the physical and electrical specifications of the IEEE 488, RS485, and RS422 standards, as well as interpret and execute high-level commands from the serial port, including serial‑to‑GPIB, and GPIB‑to‑serial protocol conversions. This device is IEEE 488.2 compatible. The device includes a license for the NI‑488.2 driver software, providing maximum reliability for connecting to third-party instruments with GPIB.
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Product
USB / RS232 / RS485 / RS422 Opto Isolators
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USB has now moved from the desktop to more challenging environments, including instrumentation, point of sales, factory & building automation, etc. With our rugged, industrial-grade USB isolators and USB to RS232 / RS485 / RS422 optically-isolated converters, we ensure that your assets are well protected from unexpected events.
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Product
RS485 Null-Modem Cable, DB-9 Female to DB-9 Female, 2m
183283-02
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9-Pin Female DB-9 to 9-Pin Female DB-9 Serial Cable - The 9F-9F Serial Cable, sometimes referred to as GPIB Serial Cable, connects and controls GPIB devices using RS232 and RS485 serial ports. The 9F-9F Serial Cable is offered in different lengths.
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Product
GPIB-RS485/RS422 GPIB Instrument Control Device
779733-02
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Serial, RS485/RS422 GPIB Instrument Control Device - The GPIB‑RS485 is an IEEE 488 controller device for PCs with RS485 or RS422 ports. You can use this device to integrate an instrument into your system using GPIB. This device transforms a computer with an RS485 or RS422 serial port into a talker, listener, or controller on the GPIB bus. It can also interface RS485 and RS422 instruments and peripherals to the GPIB bus. It can implement the physical and electrical specifications of the IEEE 488, RS485, and RS422 standards, as well as interpret and execute high-level commands from the serial port, including serial‑to‑GPIB, and GPIB‑to‑serial protocol conversions. This device is IEEE 488.2 compatible. The device includes a license for the NI‑488.2 driver software, providing maximum reliability for connecting to third-party instruments with GPIB.
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Product
PCI-8433, 4-Port, PCI, Isolated, RS485/RS422 Serial Interface Device
779146-01
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The PCI‑8433/4 is a high-performance industrial interface for high-speed, port‑to‑port isolated communication with RS485 and RS422 devices. It features high-performance DMA transfers, multithreading, and multiprocessor support. You can also select between 4‑ and 2‑wire transceiver modes for full‑ and half‑duplex communication. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
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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
USB / RS232 / RS485 / RS422 Opto Isolators
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USB has now moved from the desktop to more challenging environments, including instrumentation, point of sales, factory & building automation, etc. With our rugged, industrial-grade USB isolators and USB to RS232 / RS485 / RS422 optically-isolated converters, we ensure that your assets are well protected from unexpected events.
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Product
PCIe-8433, PCI Express, 2-Port, Isolated, RS485/RS422 Serial Interface Device
781745-01
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The PCIe‑8433/2 is a high-performance industrial interface for high-speed, port‑to‑port isolated communication with RS485 and RS422 devices. It features high-performance DMA transfers, multithreading, and multiprocessor support. You can also select between 4‑ and 2‑wire transceiver modes for full‑ and half‑duplex communication. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
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Product
Mezzanine Module
RS485-MOD2
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Curtiss-Wright Defense Solutions
The RS485-MOD2 is a front panel mezzanine module designed to provide serial I/O functionality to Curtiss-Wright FPGA-based processing PMC and XMC modules including the PMC-FPGA03, PMC-FPGA05 and XMC-FPGA05D. This RS485 I/O module provides 33 channels of EIA-485 or EIA-422B serial I/O. Each channel is configured as an input or output. The serial protocol and timing are handled by the host FPGA.
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Product
RS232 / RS485 / RS422 / Serial To Multi-Drop Fiber Optic Converters
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Our advanced, rugged, industrial-grade, RS232 / RS485 / RS422 serial to multi-drop fiber optic converters are designed to cover large areas. These converters support up to 255 fiber nodes, and each fiber node can extend the RS232 / RS422 / RS485's distance to 3 miles (5km) for multi-mode converters and cables, or 25 miles (40km) for single-mode converters and cables. Depending on the site situation, these multi-drop fiber optic converters can be configured as a daisy-chain or a self-healing redundant ring fiber network. When configured as a ring fiber network, the built-in self-healing feature allows the data to be transmitted clockwise or counterclockwise; therefore, failure of any individual converter will not affect other devices located on the same fiber ring, making the entire data network more robust and reliable. These multi-drop fiber optic converters have been designed for harsh industrial environments and withstand a wide temperature of -40°F to 185°F (-40°C to 85°C), and they come with the options of multi-mode and single-mode, and ST, SC, and FC connectors.
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Product
RS232 / RS485 / RS422 Isolators/ Isolated Converters
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From 3-wire to 7-wire RS232 isolators, 2-wire RS485 to 4-wire RS422 / RS485 isolators, and USB isolators to USB / RS232 / RS485 / RS422 optically-isolated converters, CommFront has all the industrial-grade optical-isolation devices to protect your assets from the unexpected. If off-the-shelf product does not provide enough security for you, we can even tailor-make the devices, which are customizable right down to the nuts and bolts.
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Product
RS485 Null-Modem Cable, DB-9 Female to DB-9 Female, 1m
183283-01
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9-Pin Female DB-9 to 9-Pin Female DB-9 Serial Cable - The 9F-9F Serial Cable, sometimes referred to as GPIB Serial Cable, connects and controls GPIB devices using RS232 and RS485 serial ports. The 9F-9F Serial Cable is offered in different lengths.
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Product
SparkFun USB To RS-485 Converter
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This is the newest revision of this board and this breakout board pairs an SP3485 RS-485 transceiver with an FT232RL USB UART IC to convert a USB stream to RS-485. The SP3485 is a half-duplex transceiver, so it can only communicate one way at a time, but it can reach transmission speeds of up to 10Mbps.
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Product
4G Router
ICR-2452W
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ICR-2400, EMEA, RedCap, 2× Ethernet , 1× RS232, 1× RS485, WiFi, Metal, Without Accessories
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Product
PCI Express Serial Boards
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Sealevel PCI Express serial boards utilize 120-byte FIFOs for maximum reliability in data-intensive applications. Software developed for standard PCI boards will also work with Sealevel PCI Express boards, simplifying your transition to this next-generation PCI bus. Sealevel PCIe serial boards are configurable for RS-232, RS-422, and RS-485 electrical interfaces. These PCIe serial boards are fully compatible with X2, X4, X8, X16, and X32 PCI Express slots.
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Product
Intelligent Pressure Display Controller
HR5310/HR5311
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HighReach Measuring & Controlling System Co.,Ltd
HR5310 intelligent pressure display controller is an intelligent pressure measurement and control product that integrates pressure measurement, display, output and control, with RS485 digital interface; the product is a fully electronic structure, using international brand pressure sensors, high-precision A/D conversion, microprocessor operation processing, on-site display, and output of one analog quantity and five switch quantities.The intelligent digital pressure controller is flexible to use, simple to operate, easy to debug, safe and reliable, and is widely used in hydropower, tap water, petroleum, chemical, machinery, hydraulic and other industries to measure, display and control the pressure of fluid media.
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Product
GPIB to Quad Serial Interface
Model 4896
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* Provides four RS-232/RS-422/RS-485 Serial Channels.* High speed, 115.2 K baud channels include 60 K byte buffers.* > 600 K byte/sec. GPIB data transfer rate.* SCPI commands set serial configuration and GPIB address.* LCD display shows Bus activity, buffer status, serial interface signals and channel settings.* 1 U high rack mount kit mounts one or two 4896s * Includes US 115 VAC Power Adapter, Manual and Support CD.
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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
Multifunctional Meter
AEM-DRA
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The AEM-DRA series has 2 independent and isolated main circuit inputs , can use for different power system.Up to 24 single phase or 8 three-phase circuits, programmable from push buttons with LCM display panel, or using Adtek program software through RS485 communication port.Hardware standard built in a RS485 Modbus communication port , 2 Digital inputs, 4 Relay outputs, LCM and 2 MB flash for data-logging.Optional second communication port for Ethernet, ProfiBus ,LonWorks ,BACnet and Zigbee solutions.Din rail mounting , compact and easy installation, programming through computer and push buttons easy to use.
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Product
Pyranometer products
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Hukseflux Thermal Sensors B.V.
Hukseflux is a leading manufacturer, both in technology and market share, of pyranometers, pyrheliometers, pyrgeometers, net radiometers and albedometers.We produce a complete range of solar and longwave radiation sensors, compliant with the latest ISO, IEC and WMO standards. Each Hukseflux pyranometer is classified as ISO 9060 secondary standard, first class, or second class, and offers the best measurement accuracy in its class. Pyranometer output is analogue and/or digital (Modbus over RS-485/TTL).
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Product
2Counter/2DO Modbus RS-485 Remote I/O
ADAM-4080
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2ch counter/2ch digital outputProtocols:Modbus RTU,ASCIIWatchdog timer to recover the system2500VRMS isolation protectionCounter frequency up to 50kHZ
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Product
ANSI X3.28 Interface Board
Model 4804B-7
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* F30145 firmware converts printable ASCII character strings into the ANSI X3.28 serial protocol.* User selectable single-ended RS-232 and differential RS-422/RS-485 serial signals.* Can be used to replace obsolete ICS 4814 Interfaces.* Connect to the rear panel with a GPIB Flat-ribbon cable or with a GPIB Connector/Address Switch Cable.* Runs on 5 Vdc regulated or 5.5 to 15 V unregulated power.
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Product
Isolated RS-485
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Renesas' isolated RS-485 differential bus transceivers provide bidirectional data communication for Industrial Internet of Things (IIoT) networks.
