RS-232
A standard interface for serial binary data interchange defining voltage levels for logical one and logical zero, standard transmission speed and connector types.
See Also: Serial, I2C, LIN, Can bus, ExpressCard, Fieldbus, FireWire, RS-485, PCI Express, Serial ATA, Serial Peripheral Interface, SMBus
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Product
Single Port RS-232 Interface
PCI-COM232
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Serial ports: 1Configured: Address and interrupt configured through PCI BIOS and supplied driversMax. baud rate: to 460.8 Kbps, software selectable per channel for 115.2, 230.4, or 460.8KbpsSerial modes: 5, 6, 7, or 8 data bits; odd, even or no parity; 0, 1 or 2 stop bitsUART: 16C550 standardInterrupt Status: Each UART interrupt status read from any UARTís Scratchpad RegisterConnector: 37 position D-type with cable to DB-9 (DB-25 optional)Power: +5V only
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Product
RS-232 and RS-562 Transceivers
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Analog Devices offers single, dual, and combination transceivers of up to five RS-232/RS-562 drivers and receivers for 1.8 V to 5.5 V power supplies. Data terminal equipment (DTE) or data communications equipment (DCE) configurations are also available in 3.3 V or 5 V versions. Galvanically isolated modules break ground loops and provide a convenient, self-powered, isolated, low EMI solution that drastically reduces component count and design complexity.
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Product
- RS-232 DB9 Lightning Suppressor
Model 29
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FEATURES: PC 386/486 Pentium Com Ports; Nanosecond Response; DB9 Connectors; Protects All 9 Lines; Ground Stud & Wire Included. The Model 29 contains avalanche diodes, one for each line. All diodes are returned to a ground stud. The Model 29 is provided with a 2-foot ground wire and has male and female DB9 connectors.
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Product
RS-232 to RS-422 Interface Converter
Model 253
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FEATURES: DB9 Data Port; Compatible with PC/386/486; Full Duplex; Surge Protection. Adding an RS-422 interface to a PC is now a snap. The Model 253 Interface Converter does this for full duplex signals at data rates up to 19.2 KBPS, without requiring any AC or DC power. With only TD, RD and ground, the Model 253 provides operation over 8,000 feet of twisted pair into a load of 120 Ohms.
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Product
IP to Dual RS-232 Controller
VSA-31-IP
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The VSA-31-IP is an add-on module for the Switch-Cat A/V Systems. The new IP module allows monitoring and control of one to multiple Switch-Cat installations via IP across the customers internal network.
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Product
RS-232 to RS-485 Optically Isolated Interface Converter
Model 8322
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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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Product
- RS-232 to RS-422/RS-485 Concentrator - Wiring Hub
Model 290
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FEATURES: Break RS-485 Limit, Expand to 496 Nodes 16 Port Capacity; Each Port Settable to RS-422 or 2 Wire RS-485; Provides Isolation Between Ports; All Ports Surge Protected; Increased System Reliability. The Model 290 RS-232 to RS-422/RS-485 Concentrator offers a unique group of features for those applications using RS-422 and/or RS-485 for communications between a multiplicity of devices.
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Product
- RS-232 to RS-422/RS-485 Converter
Model 285
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FEATURES: User Selectable RS-422 or RS-485; User Selectable 2 or 4 Wire RS-485; Intelligent Control Of RS-485 Transmitter And Receiver; TD & RD LED's; DTE/DCE Compatible; Data Rates Up to 64 KBPs. The Model 285 RS-232 to RS-422/RS-485 Converter is a unique interface converter that can be configured to operate in compliance with RS-485 or RS-422 equipment, and RS-232.
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Product
RS-232 to RS-422/RS-485 Interface Converter
Model 9365
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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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Product
4-Port Isolated RS-232/422/485 With IRIG B Card
ECU-P1624D
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industrial communication module designed for high-reliability, time-synchronized serial data transmission. It supports four software-configurable RS-232/422/485 ports, often including isolation for interference protection, alongside an IRIG-B time synchronization input, commonly used in substation automation.
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Product
- RS-232 Opto Isolation Module
Model 268
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FEATURES: Total Electrical Isolation; Eliminates Noise Problems; Eliminates Ground Loops; Use for Data & Control; UL Components. The Model 268 Opto Isolation Module provides a communications link that has no electrical connections from one port to the other.
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Product
3U CompactPCI® RS-232/422/485 Serial Communication Card
MIC-3955
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The MIC-3955 is a low power 4-port or 8-port RS232/RS422/RS485 serial board with 3U CPCI form factor and is based on the EXAR PCI controller. MIC-3955 is PICMG 2.0 Rev. 3.0 compatible. Rear board module are named MIC-3527XX. The MIC-3955 supports front IO or rear IO with 4-port and 8-port, and every channel is independent.
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Product
RS-232 to RS-422 Interface Converter
Model 63-2SA
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FEATURES: Full Duplex Signals; DTE/DCE Switch; TD and RD Indicators; DC to 115.2 KBPS. The Model 63-2SA provides a hardware conversion for full duplex signals between RS-232 and RS-422 I/O ports. Since the RS-232 port may look like a computer or a modem, the converter is equipped with a DTE/DCE selector switch.
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Product
PCI Express 16-Port RS-232 Serial Interface
7161e
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The 7161e provides sixteen RS-232 serial ports capable of data rates to 460.8K bps. Each RS-232 port implements all modem control signals for maximum compatibility with a wide range of peripherals. The board is PCI Express X1 compliant and utilizes 16C854 UARTs to provide 128-byte Tx/Rx FIFOs for maximum reliability in data intensive applications.
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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
Serial RS-232 Expansion Connector Accessory for USBHub3c
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Used for connecting a serial RS-232 interface to the control the USBHub3c through the expansion interface connector. Screw terminals are provided for the RS-232 interface. While this board provides for wiring connections, a host machine external to the USBHub3c is required for this control interface.
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Product
2-Port RS/232/422/485 Async Serial Communications Adapter PMC
2901
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The 2-port Async Communications Adapter is a costeffective solution for providing additional RS232/RS422/ RS485 based serial ports for a host processor. Using configuration switches on the PMC board, each port is independently set-up at either RS232 or RS422 levels. In the RS422 case, an additional option is provided to transmit data on the receive data line in an RS485 fashion.
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Product
RS-232 Auto Powered Line Driver
Model 201
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FEATURES: Operates with only Pins 2(TD), 3(RD), & 7(GND); Screw Terminals and RJ-11; DTE/DCE Switch; Built in Surge Protection; Male or Female RS-232; 19.2 KBPS, Full Duplex, 2.1 Miles. The Model 201 RS-232 Auto Powered Line Driver requires only TD, RD, and signal ground for power and full duplex operation up to 19.2 K BPS.
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Product
RS-232 Micro Line Driver - DB9 Connector
Model 209
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FEATURES: Compatible with PC; 386/486 Pentium Com Ports; Full Duplex to 19.2 KBPS; No AC or DC Power; Screw Terminals or RJ-11; Small Size. The Model 209F offers all the features of the Model 201 Short Haul Modem but in a package that is approximately one third the volume.
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Product
HDLC RS-232 / RS-422 / RS-485 Passive Tap Module – USB Port
VERSA-TAP™
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Versa-Tap protocol analyzer offers a powerful hardware solution that features state-of-the art electronics and provides exceptional data-logging/analyzer capabilities at a fraction of the cost of the nearest competitor.
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Product
8-Port Isolated RS-232/422/485 Ethernet Card
ECU-P1628D
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Industrial-grade interface adapter that adds eight independent, surge-protected serial ports to a PC
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Product
8-Port Non-Isolated RS-232/422/485 Ethernet Card
ECU-P1618D
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enables 8 legacy serial devices to communicate over a standard LAN/Ethernet network. It supports multi-protocol operation (RS-232, RS-422, or RS-485) and acts as a gateway for data, often featuring virtual COM port redirection and high-speed data transfer.
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Product
- RS-232 to RS-422 Interface Converter
Model 263
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No AC or DC Power; Full Duplex RJ-11 and Screws; Surge Protection. The Model 263 power stealing RS-232 to RS-422 interface converter offers the user the benefits of other Telebyte converters without the problem of supplying power. With only TD, RD and Ground the Model 263 will provide operation over 8,000 feet of twisted pair into a load of 120 Ohms.
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Product
68SCSI-DB9M Serial Cable, 68 POS SCSI to 8 DB-9, 1 m (RS-232)
185196-01
Serial Cable
Serial Cable, 68 POS SCSI to 8 DB-9, 1 m (RS-232)
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Product
Cable Assembly, Receiver, TriPaddle, 20", 2 9-Pin Female D-Subs, for RS-232
540127010101
Cable Assembly
Cable Assembly, Receiver, TriPaddle, 20", 2 9-Pin Female D-Subs
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Product
Four And Two-Port Multi-Protocol RS-232/422/485 PCI Express Mini Cards
mPCIe-COM-4SM Family
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The mPCIe-COM-4SM family of cards feature high performance 16C950-class UARTs. Available in 4-port and 2-port versions, each port is capable of communication speeds up to 921.6kbps in RS-232 (differential modes support speeds as high as 3Mbps) and has 128-byte deep transmit and receive FIFOs. Large FIFOs protect against data loss in multitasking operating systems, reduce CPU utilization, and improve data throughput, while reducing or eliminating inter-character or inter-packet pauses. The advanced integrated circuit with pre-scalar supports a wide variety of custom baud rates, and any rates not otherwise achievable can be supported via a custom factory-installed crystal oscillator (up to 10Mbps!).
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Product
Low Profile PCI Express 2-Port RS-232, RS-422, RS-485 Serial Interface
7205e
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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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Product
- RS-232 to RS-485 2 Wire with LCD Display
Model 366
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FEATURES: DataSpy® Status Display; Implements Low Cost LAN; Supports 32 Users; Uses Single Twisted Pair; External DTE/DCE Switch; Programmable Contention; Selectable Termination. The Model 366 allows interfacing RS-232 based equipment with networks/equipment using RS-485.
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Product
RS-485, RS-422 & RS-232
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Renesas has a rich interface history dating back to the 1970s. Our RS-485, RS-422 and RS-232 transceivers are used by the biggest names in industrial process control, telecommunications, and hundreds of different applications.
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Product
RS-232 Opto Isolation Module with DB9 Connectors
Model 9268
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Ensure clean data transmission and reception between two devices by installing Telebyte Model 9268 Opto Isolation Module with DB9 Connectors. For applications ranging from testing laboratories to factory floors, isolation is a critical component in data communications environments.





























