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
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
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
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
RS485 Null-Modem Cable, DB-9 Female to DB-9 Female, 4m
183283-04
Serial Cable
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
PMC-BiFIFO
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The parallel Input and Output channels are highly programmable and fully independent. The standard interface offers Data, Clock and Strobe. The 32 RS485 channels are programmable as input or output allowing for a variety of implementations. The programmable output rates and RS422/485 compatability will interface to a multitude of systems.
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Product
Digital Panel Meter
MPF-5A
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Mx-5A meter to provide power (Watt or Active Power or Re-active Power or Power Factor), high-precision measurement, display and remote communication capabilities.Additional purchase: 1 group of relay outputs, 1 analog output, an RS485 communication output (the Modbus RTU Mode) interface, so that can be installed in power management, remote input and output, alarm and variety of remote communication control the use of needs.120mm (D) is ideal for assembling in panels with limited penetration depth
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Product
Flow Controller Meters
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Auto. change red or green display when alarm status changesAccuracy±0.75% of full scaleMeasuring pipe size range DN 15 to DN 600(0.5 to 24 inch.)Measuring flow velocity range 0.1 to 8 M/s(0.33 to 26 Ft/s) Field-rangable supply voltage from DC 14 to 28 VDisplay flow units Liter,GAL,M3,TON can be modifiedDual alarm function (optional) 16 bit DAC analog output function (optional) Digit RS-485 interface function (optional) Protection class NEMA4/IP65
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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
Multifunctional Meter
CPM-70
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CPM-70 multifunction power analyzer provide high accuracy single phase and three-phase energy measuring and displaying, energy accumulating, power quality analysis, data logging and data communication.CPM-70 series meters are able to measure bidirectional, four quadrants kWh and kVarh.It provides maximum/minimum records for power usage and power demand parameters. Hardware standard built in a RS485 Modbus communication port , 4 Digital inputs, 2 Relay outputs, LCM and 2 MB flash for data-logging.
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Product
Power Amplifier
MS 2011
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Power Amplifier is used to amplify the RF signals from low power to 100 Watts of RF carrier power to 400 Watts Peak envelop power (single side band operation). Outputs are filtered. This system is controlled through microprocessor and it has RS485 interface.
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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
Multi Interface USB Adapter
SUB-20
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SUB-20 is a versatile and efficient bridge device providing simple interconnect between PC (USB host) and different HW devices and systems via popular interfaces such as I2C, SPI, MDIO, RS232, RS485, SMBus, ModBus, IR and others. It is also a full "any to any" converter between all supported interfaces and I/O features. SUB-20 is a powerful I/O controller with 32 GPIO, 8 Analog Inputs, PWM Outputs, Edge DEtectors, LCD, Leds and push buttons.SUB-20 system includes SW package containing driver, API Library, GUI and Command Line based applications, C,C++,C#,VB.net, MATLAB, LabView sample code and documentation. SUB-20 can be used with PC 64/32 bit running Windows 2000/XP/Vista/Win7/Win8, MacOS, Unix/Linux and DOS.Working with SUB-20 does not require deep knowledge of low layers of the specific interface. All you need to do is to call right API function at the right place. And this is really very easy as API functions are well documented and "exampled". API set is relatively small but comprehensive.SUB-20 is equipped with status Leds, optional LCD and buttons. All this guarantee fast and comfortable development, field debugging and maintenance of applications including option of standalone operation.
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Product
10 Digit Rate/Batch Counter (Pulse)
CS2-TM-Pulse
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The CS2-TM(Pulse Input) is innovation totalizer.Adtek builds in high technology with wide input range from 0.01Hz~ 140.00KHz with auto-range function at same unit. There are three setting modes for K factor, 1/K factor and flow speed to match the difference output description of flow-meters.The Totalizer provides high accuracy measurement, display, control and communication (Modbus RTU mode) of Pulse from Flowmeter or encoder, proximity switch, photo switch for length control.There are two display screen and 3 external control input (DI) in standard and the optional 4 Relay, 1 Analogue, 1 Pulse and RS485 port available. They are also support fantastic control function as like as N, R, C mode for totalizer and batch control.
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Product
Serial Digital Interface
Model 2363
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* Provides 48 high-power TTL I/O lines that can sink 48 mA or source 24 mA. * Easily interfaces to TTL or CMOS signals and contact closures. * User can configure the data bytes as inputs or outputs.* Transfer data as bits, bytes or data strings.* RS-232 and RS-485 Serial IO.* 1 U high rack mount kit mounts one or two 2363s* Includes US 115 VAC Power Adapter
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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
Radar Level Sensor
VRS-20
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Versatile and simple to install, the VRS-20 has been developed by Valeport to work seamlessly with the TideMaster Tide Display/Logger and other third party data loggers using RS232, RS485 and SDI-12 communication. Non-contact technology removes the installation, corrosion & fouling issues of submerged sensors, while simplifying datum control. Accuracy and performance are unaffected by changes in water density and atmospheric conditions.
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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
Natural Cooling Input 380VAC 3 Phase to Output 190-300VDC 10A-40A Rectifier Battery Charger
SD230D20ZZ
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Zhejiang Sandi Electric Co., Ltd
SANDI “SD” series intelligent high-frequency switch power supply modules are specially developed to meet the demands of modern DC system. The charger rectifiers are designed with world leading patent technology “resonant voltage type soft switching power supply technology”. They feature high efficiency and stability, intelligent control, small size and light weight. Standard RS-485 interface, easy to connect with automation system. “Four remotes” functions, intelligent management. The products are widely used in power plant, substations and etc..
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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
Converters
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ENTES Ethernet Modbus Gateway is an Ethernet / RS-485 MODBUS network gateway which is designed to enable communication with a PC via Internet(WAN) and Intranet(LAN).
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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
Modbus Transmitter for LPPHOT01 Probe
LPPHOT01S
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The transmitter LPPHOT01S converts the mV analog signal generated by the illumination probe LPPHOT01 into a digital signal suitable to be transmitted over a serial line RS485 with MODBUS-RTU protocol.
