home > product> solutions > pc based i/o board > Introduction > PEX-D144LS/PIO-D144U/PIO-D144LU
PCI Express/Universal PCI, 144-channel DIO Board
~ NEW ~
Model: PEX-D144LS
Model: PIO-D144U/PIO-D144LU
  • Support the +3.3/+5 V PCI bus for PIO- D144U/D144LU
  • Support PCI Express x1 for PEX-D144LS
  • 144 channels of digital I/O
  • Bi-direction programmable I/O ports under software control
  • Eighteen 8-bit bi-direction I/O ports
  • Pull-high/Pull-low Jumpers for DI Channels for PIO-D144LU/PEX-D144LS
  • Supports Card ID (SMD Switch)
  • Interrupt source: 4-channel
  • Output status readback
  • Connect directly to DB-24P,DB-24R, DB-24PR, DB-24SSR, DB-24POR and other OPTO-22 compatible daughter board
The PEX-D144LS card is the new generation product that ICP DAS provides to meet RoHS compliance requirement.

The PIO-D144U/D144LU universal PCI card supports 3.3 V/5 V PCI bus, while the PEX-D144LS supports PCI Express bus. These cards provide 144 TTL digital I/O lines that are grouped into eighteen 8-bit bi-directional ports. Each group of three 8-bit ports is arranged on the connector as Port A (PA), Port B (PB) and Port C (PC), respectively, and all ports are configured as inputs Ports on power-up or after a reset.

The PIO-D144U/D144LU provides six connectors for I/O wiring, while the PEX-D144LS provides a high-density connector that reduces the amount of installation space required for the card in the computer.

The PIO-D144U/D144LU and PEX-D144LS cards include an onboard Card ID switch that enables the board to be recognized via software if two or more boards are installed in the same computer. The PIO-D144LU and PEX-D144LS also adds pull-high/low jumpers allow the DI status to be predefined instead of remaining floating if the DI channels are disconnected or interrupted.

These cards support various OS such as Linux, DOS, Windows 98, Windows NT, Windows 2000, 32-/64-bit Windows XP/2003/2008/Vista/7 and Windows 8. It also provides the DLL and Active X control, and various language sample programs in Turbo C++, Borland c++, Microsoft C++, Visual C++, Borland Delphi, Borland C++ Builder, Visual Basic, C#.NET, Visual Basic.NET and LabVIEW to help users to quickly and easily develop their applications.
Comparison Table
DI Pull-High/Low
PCI Express
Low power consumption、Low temperature
Universal PCI
Low power consumption、Low temperature
Universal PCI
High DO Driving (Output Capability)
  • DOS Lib and TC sample program (with source codes)
  • DLL and OCX SDK for Windows 95/98/NT/2K.
  • DLL and OCX SDK for 32-bit and 64-bit Windows XP/2003/2008/7/8/10.
  • VB/VC/Delphi/BCB/VB.NET/C#.NET/VC.NET/MATLAB sample programs with source codes.
  • LabVIEW toolkit for Windows.
  • Driver for Linux and DasyLab.
Model Name PEX-D144LS PIO-D144LU PIO-D144U
Programmable Digital I/O
Channels 144
Digital Input
Compatibility 5 V/CMOS 5 V/TTL
Input Voltage Logic 0: 0.8 V max.
Logic 1: 2.0 V min.
Response Speed 500 kHz 1 MHz
Digital Output
Compatibility 5 V/CMOS 5 V/TTL
Output Voltage Logic 0: 0.1 V max.
Logic 1: 4.4 V min.
Logic 0: 0.4 V max.
Logic 1: 2.4 V min.
Output Capability Sink: 6 mA @ 0.33 V
Source: 6 mA @ 4.77 V
Sink: 64 mA @ 0.8 V
Source: 32 mA @ 2.0 V
Response Speed 500 kHz 1 MHz
Bus Type PCI Express x1 3.3 V/5 V Universal PCI, 32-bit, 33 MHz
Data Bus 8-bit
Card ID Yes(4-bit)
I/O Connector Female SCSI II 100-pin x 1
50-pin box header x 1
Female DB37 x 1
50-pin box header x 5
Dimensions (L x W x D) 162 mm x 100 mm x 22 mm 180 mm x 105 mm x 22 mm
Power Consumption 250 mA @ +5 V 600 mA @ +5 V
Operating Temperature 0 ~ 60 °C
Storage Temperature -20 ~ 70 °C
Humidity 5 ~ 85% RH, non-condensing
PEX-D144LS CR PCI Express, 144-channel DIO board (SCSI II Connector, RoHS)
PIO-D144U CR Universal PCI, 144-channel DIO board (RoHS)
PIO-D144LU CR Universal PCI, 144-channel DIO board (RoHS)
CA-3710 DB-37 Male-Male D-sub cable 1 M (Cable for Daughter Board(45°))
CA-3710D DB-37 Male-Male D-sub cable 1M (Cable for Daughter Board(180°))
CA-4002 37-pin Male D-sub connector with plastic cover.
CA-5002 50-pin flat cable 20 cm
CA-5015 50-pin flat cable 1.5 M
ADP-37/PCI 50-pin connector extender to 37-pin connector
DB-24PD 24-channel of isolated D/I board
DB-24RD 24-channel of relay board
DB-24PRD 24-channel of power relay board
DB-24POR 24-channel of PhotoMos Relay output board
DB-24SSR 24-channel of Solid State Relay output board
DB-24C 24-channel of open-collector output board
DN-100 I/O Connector Block with DIN-Rail Mounting and 100-Pin SCSI II Connector
DN-100-CA I/O Connector Block with DIN-Rail Mounting and 100-Pin SCSI II Connector Include one CA-SCSI100-15 cable
I/O Card Main Page

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