ISA Bus Dual-Port Isolated RS-422/485 Communications and Watchdog Card -- WDG-2S
from ACCES I/O Products, Inc.

FEATURES. Watchdog timer to monitor computer systems. Two Optically-Isolated RS-422/485 Serial Comunication Ports. Computer power supply voltage and temperature monitors. LED status monitors on transmit and receive lines for troubleshooting. Spare 16-bit counter timer. This multifunction card... [See More]

  • Serial Protocol: RS422; RS485
  • Connector: DB9
  • Network / Bus: ISA
  • Agency Approvals: CE Conformity
IOS-500 Series Serial Communication Module -- IOS-521
from Acromag, Inc.

IOS Modules plug into the 4-slot carrier card that is integrated within the I/O Server. Different modules can mix or match in any combination to meet the I/O requirements. IOS-521 modules provide eight asynchronous serial communication ports from a single carrier slot. Software-configuration helps... [See More]

  • Serial Protocol: RS422; RS485
  • Number of Ports: 8
  • Data Rate: 20000
  • Operating Temperature: -40 to 85
2-port RS-422/485 Cards with 3000 VDC Isolation and Surge Protection -- PCL-745S-BE
from Advantech Co., Ltd.

Two independent RS-422/485 serial ports. Provides 3000 VDC isolation. Provides 2500 VDC surge protection. 16C550 UARTs with on-chip 16-byte FIFO. Transmission speeds up to 921.6 kbps. I/O address and interrupt selectable. Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15. Supports 2 wire or 4... [See More]

  • Serial Protocol: RS422; RS485
  • Number of Ports: 2
1 Port RS422/485 Low Profile PCI Express Port Card -- PX-320
from Brainboxes Limited

Low profile PCI Express Card providing one RS422/485 serial port. Data transfer rates up to 921,600 baud rates and the 128 byte deep transmit and 128 byte receive FIFOS, coupled with 1Mbit/s line drivers deliver uncompromising performance on your PC. Drivers for Windows 32 bit and 64 bit Operating... [See More]

  • Serial Protocol: RS422; RS485
  • Operating System: Windows 7, Server 2008, Vista, Server 03
  • Network / Bus: PCI-Express
  • Data Rate: 921600
Isolated RS-422/485 Interface Board -- COM-2PD(PC)H
from CONTEC Co., Ltd.

This product is an interface board external equipment, PC/AT which performs serial data transmission, and for the compatible machines. This board is used inserting in the expansion slot or I/O expansion unit of the main part of a personal computer. [See More]

  • Serial Protocol: RS422; RS485
  • Operating System: Windows 2000/NT/98/95, MS-DOS
  • Network / Bus: ISA
  • Data Rate: 922
Dual Channel Serial Interface -- OMG-ACB-530
from OMEGA Engineering, Inc.

The OMEGA Advanced Communications Boards (ACBs) allow the user to configure a high speed, low cost SYNC/ASYNC communications solution. Protocols supported include X.25, SDLC, HDLC, MONOSYNC, BISYNC, and high speed ASYNC. The serial Communications Controller allows Full Duplex communications at... [See More]

  • Serial Protocol: RS422; RS485; RS-530
  • Data Rate: 1843
  • Operating System: DOS, Windows 95/98/ME/NT/2000/XP
  • Number of Ports: 1
2-port Isolated RS-422/485 PCI Card -- C422
from ADLINK Technology Inc.

Two communication port intelligent buffers, PCI Rev.2.1 plug and play [See More]

  • Serial Protocol: RS422; RS485
  • Operating System: Windows XP/2000, Linux
  • Network / Bus: PCI
  • Data Rate: 115
Serial Communication Port Card -- LPCI-COM-1S
from American Portwell Technology Inc.

Low Profile single port asynchronous serial communication card that can be installed in any 3.3V or 5V PCI slot computer. Supports RS-422 and RS-485 protocols with auto control for RS-485 under all OS at baud rates up to 460.8Kbps [See More]

  • Serial Protocol: RS422; RS485
  • Number of Ports: 1
  • Network / Bus: PCI; PCI-X
  • Connector: DB9
Emerald-MM -- EMM-4M-XT
from Diamond Systems Corporation

4-ch rs-232/422/485, extended temperature [See More]

  • Serial Protocol: RS232; RS422; RS485; RS232/422/485
  • Data Rate: 115
  • Network / Bus: PC/104 (PC/104-Plus, EBX, ETX)
  • Number of Ports: 4
2-Port -- Model 8005
from ELMA Electronic Inc.

Low cost solution to provide additional ports for a CPU. Each port can be set up independently to RS232 or RS422 levels. RS422 provides option for data transmit/receive in RS485 mode. Provides two 16550-based UARTs up to 155K-baud. Ports are available via the front panel using DB-9 connector [See More]

  • Serial Protocol: RS232; RS422; RS485; RS232/422/485
  • Number of Ports: 2
  • Operating System: RTOS, Linux, and Windows NT
  • Connector: DB9
PC/104 Module -- PM-2004
from Industrial PC, Inc.

Connectors 1 x COM port cable with 4xDB9 connector [See More]

  • Serial Protocol: RS232; RS422; RS485
  • Operating System: Windows, Linux
  • Network / Bus: PC/104 (PC/104-Plus, EBX, ETX)
  • Data Rate: 922
4-Port RS-422/485 ISA Board -- CI-134I
from Moxa Inc.

The CI-134 series ISA boards come with 4 independent RS-422/485 serial ports for connecting data acquisition equipment and other serial devices to a PC. Connect your devices over longer distances —up to 1.2 km (4000 ft) —and ensure greater reliability in industrial environments with... [See More]

  • Serial Protocol: RS422; RS485
  • Operating System: Windows, Linux, FreeBSD, DOS
  • Network / Bus: ISA
  • Data Rate: 922
ISA Bus Serial Port -- AC24AT
from Opto 22

ISA Bus Serial Port RS422/485, Isolated [See More]

  • Serial Protocol: RS422; RS485
  • Data Rate: 38.4
  • Network / Bus: ISA Bus
  • Number of Ports: 1