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Digital I/O
Digital I/O  
Digital I/O cards and modules let you sense and control binary (on/off, high/low) signals. Most models are commonly used to control devices and sense switch closures, while others provide high-speed pattern generation, timing and event counting. Models with current sink capacity of 8mA or more can be used to directly switch solid-state relays, while other models have built-in relays for direct connection to field voltages.  
  141 of 141 products meet your criteria. Show more options
Bus
I/O Lines
Input Lines
Output Lines
Relays
Isolation
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 141 of 141 products meet your criteria. Show more options

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    Description  BusI/O LinesInputsOutputsCurrent SinkCountersShipping  Price   
CYDI 192 Digital Input Board, 192-Channel for ISA Bus, 50-Pin Header Connector CYDI 192
ISA Digital Input Board - 192 Digital Inputs, 50-Pin Header Connector
ISA (8-bit, XT)
192192 - - - Same Day  $405.00 Add to Cart
CYDIO 192 Digital Input/Output Board CYDIO 192
ISA Digital I/O Board - 192 Channels, Four 50-Pin Connectors
ISA (8-bit, XT)
1921921922.5mA - 2+ weeks  $495.00 Add to Cart
144-Channel ISA Digital I/O Board PCL 722A 
ISA Digital I/O Board - 144 Channels
ISA (8-bit, XT)
14414414424mA - 2-5 days  $345.00 Add to Cart
ISA High-Density Digital I/O Card - 144-bit ATDIO 144H
ISA High-Density Digital I/O Card - 144 Channels, Opto 22 Compatible
ISA (16-bit, AT)
144144144 - - Call  $245.00 Add to Cart
Isolated 128-Channel Digital Input Board HDI 128 This item is on sale
PCI Digital Input Board - 128 Channels of Isolated Digital Input
PCI (32-bit,
universal 3.3V & 5V
keyed)
128128 - - 1Same Day  $895.00
 $695.00
Add to Cart
USB Digital I/O Module with 120 Channels, Five DB-35M Connectors, 9VDC Power Supply and USB Cable URDIO 120
USB Digital I/O Module - 120 Channels, Five DB-25M Connectors, with USB Cable
USB
1201201202mA - Call  $395.00 Add to Cart
96-Channel USB Digital In/Out Module URDIO 96C
USB Digital I/O Module - 96 Channels, 6 Counter/Timers, Five DB-25M Connectors, with USB Cable
USB
9696962mA6Same Day  $595.00 Add to Cart
PCI-Bus Digital I/O Board with 96 Channels of DIO and 24mA/Channel Sink PCIDIO 96H
PCI Digital I/O Board - 96 Channels, 24mA/Channel Sink
PCI (32-bit, 5V
keyed)
96969624mA0Same Day  $375.00 Add to Cart
96-Channel PCI High-Driving Digital I/O Board PCIDIO 96HA
PCI High-Driving Digital I/O Board - 96 Channels
PCI (32-bit, 5V
keyed)
96969648mA2Call  $395.00 Add to Cart
96-Channel USB Digital I/O Module UCDIO 96H
USB Digital I/O Module - 96 Channels of DIO, Screw Terminals
USB 2.0
96969664mA1Call  $395.00 Add to Cart
 Showing 1 - 10 of 141 Products [1] 2 3 4 5 6 7 8 9 10 Next >>
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 Category Browse - Digital I/O Interfaces
Counter/Timer Products