RS-485
Serial communication line supporting 32 devices.
See Also: Serial, I2C, LIN, Can bus, ExpressCard, Fieldbus, FireWire, RS-232, PCI Express, Serial ATA, Serial Peripheral Interface, SMBus
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SparkFun USB To RS-485 Converter
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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- RS-485 to Fiber Optic Converter
Model 276A
FEATURES: Data Rate to 1 MBPS; ST Connectors; DB-25 Connector; Half-duplex operation; Extends distance of RS-485 network to 6,600 ft (2 km) on multimode fiber cable. The Model 276A provides the capability of transmitting an RS-485 signal via a fiber optic link.
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LAN⇔RS-422/RS-485 Conversion
SI-65A
SI-65A is an interface converter to connect factory automation equipment and analyzers, which only have the serial communication ports for RS-422/485, to LAN.
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Interface RS-485 and RS-422
The RS-485 specification meets the requirements for a truly multipoint communications network, and the standard specifies up to 32 drivers and 32 receivers on a single (2-wire) bus. Some RS-485 transceivers modify the input impedance to allow up to 8× more nodes to be connected to the same bus. Analog Devices offers a wide range of standard RS-485/RS-422 transceivers and iCoupler® isolated RS-485/RS-422 transceivers to suit many applications.
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Universal PCI, RS-422 Or RS-485 Serial Interface Cards
LPCI-COM422-8 and LPCI-COM485-8
These are eight-port, asynchronous, serial communication cards designed for use on the PCI bus. They support RS-422 or RS-485 communications. These cards offer the best combination of high-density and high-speed communications in a low profile form factor. The cards meet the MD2 Low Profile PCI Bus Specification and can be used in applications where space is at a premium, such as thin-client servers and high-density rack-mount servers. The LPCI line has been designed for use in retail, hospitality, and point of sale systems as well as the gaming and defense industries.
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RS-232 to RS-485 Optically Isolated Interface Converter
Model 8322
FEATURES: 4 Wire-Master/Slave Operation; Active Mode Control Via RTS or Data; Opto Isolation; Built-in Power Supply; Internal Microcontroller; 38.4 KBPS Data Rate; DIN Rail Mountable; Programmable Terminations. The Model 8322 RS-232 to RS-485 Interface Converter allows information exchange in half duplex mode over two twisted pairs.
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USB⇔RS-422/RS-485
SI-35USB
SI-35USB is an USB converter, which converts USB of PC into RS-422/RS-485.
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RS-485/RS-422
Renesas' half duplex and full duplex RS-485/RS-422 transceivers are available in a variety of speed grades to address any application needing reliable data transmission over twisted pair wiring.
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Low Profile PCI Express 2-Port RS-232, RS-422, RS-485 Serial Interface
7205e
The 7205e low-profile PCI Express serial interface provides two serial ports configurable for RS-232, RS-422 or RS-485. Each serial port utilizes a 16C950 UART with 128-byte Tx/Rx FIFOs that enables data rates to 921.6K bps for reliable high-speed communications in data-intensive applications. This high-performance UART includes 9-bit framing support and is fully software compatible with legacy 16550 applications. In addition, the 14.7456 oscillator and UART’s flexible clock prescalar supports the widest range of standard and non-standard baud rates.
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RS-422/RS-485 Repeater
ND-6510
ADLINK's NuDAM data acquisition modules make up a total acquisition network and control system. Up to 256 NuDAM modules an be romotely controlled on any RS-485 network from a host computer, via a single serial RS-232, allowing communication from as far as 4000 feet from the host. Based on the RS-485 multi-drop network system, each module has a unique address ID, whereby simple ASCII command & response protocols through the standard RS-485 interface can control all the NuDAM modules in the RS-485 network. The NuDAM modules provide direct communications with a wide variety of sensors, perform all signal conditioning, scaling, linearization and conversion, and can acquire measurements of temperature, pressure, flow, voltage, current, and multiple digital signal types.
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RS-232 to RS-422/RS-485 Interface Converter
Model 9365
FEATURES: DIN Rail Mountable; User Selectable RS-422 or RS-485; User Selectable Two- or Four-wire RS-485; DataSpy® LCD Display; Intelligent Control of RS-485 Transmitter and Receiver; DTE/DCE Compatible; Data Rates Up to 115.2 kbp.
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Isolated RS-485
Analog Devices offers a wide range of standard RS-485/RS-422 transceivers and iCoupler® isolated RS-485/RS-422 transceivers to suit many applications. The RS-485 specification meets the requirements for a truly multipoint communications network, and the standard specifies up to 32 drivers and 32 receivers on a single (2-wire) bus. Some RS-485 transceivers modify the input impedance to allow up to 8× more nodes to be connected to the same bus.
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- RS-485 DIN Rail Mounted Surge Suppressor
Model 8021NX
FEATURES: Fast Response; Automatic Recovery; Up To 20 MBPS Data Rate; DIN Rail Mounted; Triple Stage Protection; Two Wire. The Model 8021NX is a DIN Rail mounted surge suppressor for 2-wire RS-485 circuits used to protect factory data networks, or, any RS-485 network that wants to avail itself of the DIN Rail packaging concept. The Model 8021NX provides common-mode (line to ground) surge protection and differential mode (line to line) protection for balanced networks. All the inputs, outputs and ground connections are via screw terminals located on the top surface of the device.
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RS-485 Serial I/O
ADAM-4000/4100 Series
The ADAM-4000/ 4100 series featuring rugged industrial-grade cases are specially designed for reliable operation in harsh environments. Built-in microprocessors independently provide intelligent signal conditioning, analog I/O, digital I/O, data display, and RS-485 communication through Modbus RTU protocols.
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RS-485/RS-422 Fault Protected
Renesas' fault protected RS-485/RS-422 transceivers, also known as overvoltage protected transceivers (OVP), offer robust fault tolerance and high performance.
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Isolated RS-485
Renesas' isolated RS-485 differential bus transceivers provide bidirectional data communication for Industrial Internet of Things (IIoT) networks.
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RS232 / RS485 / RS422 / Ethernet Surge Protectors
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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GPIB-RS485/RS422 GPIB Instrument Control Device - Brazil 127-220VAC
779733-12
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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Economic Type Temperature Indicator
CS1-T
CS1-T economic type Temperature Indicator has been designed with high accuracy measurement, display and communication of Thermocouple or Pt100Ω.They are also available 1 option of 1 Relay outputs, 1 Analogue output or 1 RS485(Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission or communication for a wide range of machinery and testing equipments applications.
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Serial Transceivers
Exar offers a complete portfolio of RS-232, RS-485 and RS-422 transceivers and the industry's largest portfolio of multiprotocol transceivers. At 52Mbps, Exar offers some of the industry's fastest RS-485 and multiprotocol transceivers.
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Mezzanine System
5041
ECM P/N 5041 provides eight channels of RS485 / RS422 I/O with fixed 120 ohm termination for each channel. Speeds are up to 30M bits per second. All channels power up as inputs. Also transceiver inputs are always enabled for loop back diagnostic use when the outputs are enabled. Software can enable outputs on a channel by channel basis.
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Self-reclosing Overcurrent And Residual Current Protection
Wide range of solutions to guarantee personnel safety as well as maximum service continuity in the event of a ground current or breaker trip, with automatic reconnection of the installation. Available with RS-485 communications (Modbus RTU) and remote control inputs/outputs.
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Multi Protocol Analyzer
LE-2500R
LE-3500R/LE-2500R adopted TTL port as its standard besides RS-232C, RS-422, and RS-485 while having the same feature such as small and light body of LE-3500/LE-2500. You can monitor I2C or SPI without expansion board.
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4 2/3 Strain Gage Meter
CS2-SG
CS2-SG Strain Gauge Indicator has been designed with high accuracy measurement, display and communication of DC signal 0~1.0/~4.0mV or 0~10.0/~40.0mV as like as Load Cell or Strain Gauge.The meter supports Field Calibration function. It can be calibrated with sensor(Load Cell/Strain Gauge) to meet machinery structure.They are also building in 4 Relay outputs, 3 External Control Inputs, 1 Analogue output and 1 RS-485(Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission and communication for a wide range of machinery and testing equipments applications.
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Multi-Circuit Power Meter (DIN rail) (ADPower Series)
ADP-PM-A
The ADP-PM-A was designed for multi-circuit power measurement, up to 12 single phase or 4 three-phase circuit power inputs. Applicable to different types of power circuit makes ADP-PM-A a valuable option.Hardware built in 1 RS485 (Modbus) communication port, demand function, data logging and 2MB Flash memory.At the same time, din rail mounting provides easy installation and larger flexibility.
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Serial analyzer
The Serial analyzer sink decodes analog data on a serial bus to serial data. It can be used to monitor and analyze RS232, RS485, MIDI, DMX or other compatible serial buses. The serial analyzer can monitor up to eight sources. When these sources are in sync (all sources are of one (combined) instrument), all captured data will be displayed in chronological order.
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RTD Temperature Indicator
CM2-TR
CM2-TR RTD Temperature Indicator has been designed in simple operation and 4 digital 20mm LED display with economic cost.They are can be programmed by buttons that are hidden in front panel.They are also available to option relay output and an analog output or RS485 (Modbus RTU Mode) communication.
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High Speed Links
HSL
ADLINK's Intelligent Remote Data Acquisition & Control Modules (NuDAM) are designed for data acquisition systems based on PCs and other processor based equipment with standard serial I/O ports (RS-232 or RS-485 with auto direction control).
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Modbus Transmitter for LPPHOT01 Probe
LPPHOT01S
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.
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IP-Parallel-IO
IP Compatible card with 48 programmable TTL IO or 24 - RS422 / RS485 compatible differential pairs. 5 mixed combinations available. Filtered or direct input. Programmable interrupt from each IO [TTL or differential]. 2 counter timers. Waveform generator.
