RS422
One of several standards that incorporate balanced line signals into DB connectors. A pair of wires is used to carry each signal. The data is encoded and decoded as a differential voltage between the two lines. (www.sangoma.com)
See Also: Serial Communications, I2C, RS232, RS485
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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
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
USB To RS232 / RS485 / RS422 / TTL / Serial / Ethernet Converters
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With our high-quality, high-performance USB to RS232 / RS485 / RS422 / TTL serial and Ethernet converters that use only top-quality chipsets such as FTDI and Silicon Labs, USB signals are converted seamlessly into RS232, RS485, RS422, TTL, serial and Ethernet signals. Pick from our menu of industrial or commercial-grade devices confidently, knowing that you will get nothing but the best from CommFront.
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Product
PXIe-8431, 8-Port, RS485/RS422 PXI Serial Interface Module
781473-01
Serial Interface
The PXIe‑8431/8 is a high-performance interface for high-speed 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
RS422/RS485 Serial Boards
104-COM-8S
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These are eight, four, or two-port, asynchronous, serial communication boards designed for use on the PC/104 bus. They support RS-485 and RS-422 communications. The boards may be installed in any standard PC/104 stack. Connections are made via a 50 pin IDC type right angle connector.Common applications include POS, gaming systems, machine monitoring, military and high-density networking.
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Product
RS422 Mode SI-module With Optical Isolation And RTS/CTS
MX422-PEP
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RS422 mode SI-module with optical isolation and RTS/CTS
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Product
PXI-8431, 4-Port, RS485/RS422 PXI Serial Interface Module
778985-01
Serial Interface
4-Port, RS485/RS422 PXI Serial Interface Module - The PXI‑8431/4 is a high-performance interface for high-speed 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
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
PXI-8433, 2-Port, Isolated, RS485/RS422 PXI Serial Interface Module
779744-01
Serial Interface
2-Port, Isolated, RS485/RS422 PXI Serial Interface Module - The PXI‑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
GPIB-RS485/RS422 GPIB Instrument Control Device - Brazil 127-220VAC
779733-12
GPIB Controller
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
RS422 Mode SI-module With Optical Isolation
MX422-G
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RS422 mode SI-module with optical isolation
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Product
PCIe Fast Multifunction, Multichannel Counter Board, Optically Isolated, RS-422 Inputs
APCIE-1711-5V-I
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The APCIe-1711 board is a fast multifunction and multichannel counter board for the PCI Express bus. The strengths of this board are its wide range of applications and high precision and reliability for industrial applications. With this board you can realise many different applications on the same hardware base. The board is supplied with a pool of functions which provide the user with maximum efficiency yet minimum space and parts requirement. The functions are individually configured for each channel through the supplied software. The flexible programming facilities on this board allow many differentuser applications to be quickly and easily developed and reconfigured as further requirements arise. Thanks to the FPGA board structure, further counting applications canbe realised through software adaptation.
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Product
CPCI Based 486DX4 Board
MS 1501
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- CPCI/PXI Bus Interface, 6U form factor- Watchdog Timer- Hot Swap Facility- PCI Bus Rear IO Expansion for External Bus Interface- Debugging Monitor interface through RS232- JTAG interface for 486 for boundary scan test- Power Source through the CPCI connector J1 (±12V, +5V, 3.3V)- 1Mbytes of Dual Port RAM, 256Kbytes of STATIC RAM- 1MBytes of FLASH PROM- RS232, RS422 Serial Interface- Intel 486DX4 operating at 100MHz frequency at the core- Driver interface for Windows2000/XP/VISTA and LINUX/RT LINUX OS
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Product
Sixteen Port MIL-STD-1760E/HS-1760 Lab Switch
SWT-HS1760-16
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Avionics Interface Technologies
AS5653B Compliant switch - Sixteen port non‐blocking switch with each port operational at 1.0625 Gbps - Crossbar design, with 34 Gbps total transmit and receive bandwidth - Controlled via RS-232/RS-422/RS-485 or SSH/SFTP over Ethernet - Monitor/Keyboard via VGA and USB ports - FPGA based design - Available as IP CORE
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Product
PMC-BiSerial II-NG1
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The PMC BiSerial-II NG1 is part of the PMC Module family of modular I/O components by Dynamic Engineering. The PMC BiSerial-II is capable of providing multiple serial protocols. The NG1 protocol implemented provides two full-duplex RS-422 UART interfaces with error detection, two half-duplex RS-485 custom "index" interfaces, external clock input, two clock outputs, and various discrete signal inputs and outputs, all using RS-485 transceivers
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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
4 Port RS-232 & 4 Port RS-422 Interface cPCI Card
GX3904
cPCI Card
The GX3904 is an 8-port, cPCI asynchronous communications interface board supporting (4) RS232 and (4) RS422 signal levels. The four RS232 ports offer a full set of data and modem control lines configured for DTE operation. The four RS422 ports offer differential signaling and support DTE operation. Each RS422 differential pair is terminated by a 150 parallel resistor. An optional transition cable is available to convert the front panel SCSI connector to (8) DB-9, D-sub connectors.
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Product
Low Profile PCI Express 8-Port
7802ec
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The 7802ec low profile PCI Express serial interface provides eight serial ports, each individually field-configurable for RS-422 or RS-485 communications. Each serial port features an ultra high-speed UART, flexible clock prescalar, and large 256-byte Tx/Rx FIFOs allowing the adapter to support the widest range of standard and non-standard baud rates exceeding 1 Mbps. These features make the 7802ec ideal for data-intensive applications that require reliable, ultra-fast throughput rates.
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Product
Cybercast System VBI Data Inserter
VDI-2000S
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The VDI-2000S Video Data Inserter accepts data in either RS-232 or RS-422 serial format, then inserts the data onto an NTSC/PAL composite analog video signal. It can encode any of the standard VBI data formats plus the super-robust EnXpress' format at data rates from 4800 baud to 115,200 baud. The rugged self-contained metal enclosure has a number of mounting options from desktop, to rear side-rail rack mounting, to ganged front-side or rear-side rack mounting.
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Product
Multifunctional I/O Module
DP-OBC-1122
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DP-OBC-1122 is a standard 3U cPCI Multi-Functional IO module. This board operates on 32bit, 33MHz PCI bus. The key function of the module is to provide analog IO interface, in addition to the various communication interfaces such as ARINC429, RS422 and Rs232.It has an ADC, operating with ±10V analog input catering for 8 single ended / 4 differential ended channels and a DAC which provides 4 channels of analog signals with a maximum output voltage of ±10V .The module also features standard communication channels and general purpose IOs.
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Product
USB-485/2, 2-Port, USB, RS485/RS422 Serial Interface Device
778476-02
Serial Interface
The USB‑485/2 interface transforms your USB port into a single asynchronous serial port for communication with RS485 and RS422 devices. You can use a USB‑485/2 port as a standard serial port from your application, including RTS/CTS hardware handshake lines. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
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Product
PMC-BiSerial
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Two fully independent and highly programmable RS-485 / RS-422 IO channels are provided by the PMC-BiSerial design. The channels are supported by two independent state-machines created within the Xilinx FPGA. The transmit and receive protocol can be the same or different. Manchester encoding and decoding, standard serial [UART], control, command, instrumentation, and custom protocols can be implemented.
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Product
RS232 / RS485 / RS422 / TTL Serial Repeaters & Hubs
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CommFront offers a range of rugged, industrial-grade RS232 / RS485 / RS422 / TTL repeaters and hubs to meet serial communications' data distance needs by converting unbalanced signals to balanced ones, deploying repeaters to boost signal strength, and implementing hubs for star-configured connections, while still taking full advantage of cost-effective and readily-available copper wire.
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Product
8-Port Serial Interface, Modular, With/Without Optical Isolation, 3.3V/5V
APCI-7800-3
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8-port serial interface, RS232, RS422, RS485, 20 mA CL, modular mounting
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Product
PCIe-8433, PCI Express, 2-Port, Isolated, RS485/RS422 Serial Interface Device
781745-01
Serial Interface
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
- RS-422 Opto Isolation Module
Model 8381
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FEATURES: Opto Isolation; Built-in Power Supply; 115.2 KBPS Data Rate; DIN Rail Mounted; Full Duplex; Programmable Terminations. The Model 8381 RS-422 Opto Isolator allows re-generating and extending the distance of RS-422 networks while maintaining optical isolation between the ports. Model 8381 allows for the extension of RS-422 links to a maximum limit of 3,300 feet or 1 km at any data rate up to 115 KBPS.
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Product
4-port Serial Interface, Modular, With/without Optical Isolation, 3.3V/5V, With 9-pin Connectors
APCI-7500-3/4C
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*This model has 4x 9-pin D-Sub male connectors on 2 brackets*RS232, RS422, RS485, 20 mA Current Loop*Modular structure through SI modules*With or without optical isolation*Mode configuration free for each port*128-byte FIFO-buffer, common interrupt*Transfer rate programmable up to 115,200 Baud*Option: up to 1 MBaud for RS485 and RS422*Automatic direction recognition for RS48*Mode: configurable RS232, RS422, RS485, 20 mA Current Loop (active, passive) with or without isolation (SI modules)
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Product
Signal Converters
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On one hand, there are signal converters which transform an input frequency range into an analog signal. These signal converters are very easy to program and control. Other signal converters can transform analog input signals into analog normalized signals with galvanic insulation. Due to the fact that these signal converters can be freely graduated, they offer endless possibilities and 110 combinations can be selected by means of a DIP switch. Other kinds of signal converters can be connected to devices with RS-232, RS-485 or RS-422 protocols.
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Product
PCI-104 8-Port, 4-port, And 2-port Multi-Protocol RS-232, RS-422, RS-485 Serial Communication Boards
104i-COM-8SM Family
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The 104i-COM-8SM (PCI-104) family of multi-port, multi-protocol (RS-232, RS-422, RS-485), serial communication boards deliver up to eight high-speed serial communication ports for use in a wide variety of applications. The boards were developed for use by system integrators and manufacturers in the design of industrial and commercial systems. Based on the XR17D158, the boards have eight enhanced 16550 UARTs, each with a set of modem signals (CTS, RTS, RI, DTR, DSR, CD) in RS-232 mode.
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Product
PCIe Fast Multifunction, Multichannel Counter Board, Optically Isolated, RS-422 Inputs
APCIE-1711-24V
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The APCIe-1711 board is a fast multifunction and multichannel counter board for the PCI Express bus. The strengths of this board are its wide range of applications and high precision and reliability for industrial applications. With this board you can realise many different applications on the same hardware base. The board is supplied with a pool of functions which provide the user with maximum efficiency yet minimum space and parts requirement. The functions are individually configured for each channel through the supplied software. The flexible programming facilities on this board allow many differentuser applications to be quickly and easily developed and reconfigured as further requirements arise. Thanks to the FPGA board structure, further counting applications canbe realised through software adaptation.
