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Communications  
Connect your PC system to serial devices with our selection of PCI, Universal PCI, ISA, PCMCIA, and USB serial cards. Boards are available with DB-25, DB-9, RJ-12, or USB connectors and up to 16 ports. Our multi-mode boards can toggle between RS-232, 422, 485, or EIA-530. Select one of our FireWire, USB, or Ethernet interface cards or choose a module that provides serial ports from USB or Ethernet. (Choose "More Criteria" for USB, FireWire, LAN/Ethernet, parallel, GPIB, or Bluetooth ports.)  
  218 of 218 products meet your criteria. Show more options
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RS-232 Ports
RS-422 Ports
RS-485 Ports
EIA-530 Ports
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 218 of 218 products meet your criteria. Show more options

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    Description  BusPortsData RateShipping  Price   
You Can Easily Panel-Mount, DIN Rail-Mount, or Piggyback-Mount Modules ADAM 4510I 
ADAM Wide Temperature RS-422/485 Repeater (-40 to +85 Deg C)
RS-422/485 serial
1 2+ weeks  $270.00 Add to Cart
You Can Easily Panel-Mount, DIN Rail-Mount, or Piggyback-Mount Modules ADAM 4510S
ADAM Isolated RS-422/485 Repeater Module, 115.2 kpbs Data Rate, with Screw Terminals & 3000VDC Isolation
RS-422/485 serial
1 1-2 weeks  $230.00 Add to Cart
You Can Easily Panel-Mount, DIN Rail-Mount, or Piggyback-Mount Modules ADAM 4520
ADAM Remote RS-232 to RS-422/485 Converter Module, 115.2 kpbs Data Rate, with Screw Terminals and 3000VDC Isolation
RS-232 serial
1 Call  $135.00 Add to Cart
You Can Easily Pnel-Mount, DIN Rail-Mount, or Piggyback-Mount Modules ADAM 4521
ADAM Remote Addressable RS-485/422 to RS-232 Converter Module
RS-422/485 serial
1 1-2 weeks  $270.00 Add to Cart
ADAM USB to 1-Port RS-232/422/485 Serial Interface Module, 3000VDC Isolation, 10 Screw Terminals ADAM 4561
ADAM USB to 1-Port RS-232/422/485 Serial Interface Module, 3000VDC Isolation, 10 Screw Terminals
USB
1 1-2 weeks  $210.00 Add to Cart
ADAM Ethernet to 2-Port RS-232/422/485 Module ADAM 4570
ADAM Ethernet to 2-Port RS-232/422/485 Serial Interface Module
Ethernet
2 2+ weeks  $375.00 Add to Cart
ADAM Ethernet to RS-232/422/485 Port Module ADAM 4571
ADAM Ethernet to 1-Port RS-232/422/485 Serial Interface Module
Ethernet
1 2+ weeks  $260.00 Add to Cart
ADAM 5-Port Industrial 10/100 Mbps Ethernet Switch ADAM 6520
ADAM 5-Port Industrial Ethernet Switch, 10/100Base-T, 10-30VDC Power, 3000VDC Surge Protection
Ethernet
-  1-2 weeks  $160.00 Add to Cart
ADAM 4-Port Industrial 10/100 Mbps Ethernet Switch with Fiber Port ADAM 6521
ADAM 5-Port Industrial 10/100Base-T Ethernet Switch with Fiber Port, 10-30VDC Power, 3000VDC Surge Protection
Ethernet (fiber
optic)
-  1-2 weeks  $395.00 Add to Cart
ISA Serial Interface Card with 1 RS-232 Port BLS 2321S
ISA 1-Port RS-232 Serial Interface Card, 460.8 kbps Data Rate, 16-Byte FIFO Buffer, with DB-9M Connector
ISA (16-bit, AT)
1 Same Day  $89.00 Add to Cart
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