Serial 120 Line Digital I/O Unit

MSRP Starting Price: $ 695.00

Product Datasheet
Product User Manual
  • Connects via RS232 or RS485
  • 120 DIO lines
  • TTL level I/O
  • I/O Connector: 5x DB25 Male
  • LED indication for power connection
  • Ideal for portable/laptop applications
  • Housing: Plastic ABS with rubber feet
  • Operating Temp: 0 to 70�C
  • Power: 360mA max
  • O/S Support for Windows 98/ME/XP/2000 & WinCE (PocketPC2002 & PocketPC2003)
  • Includes EDRE SDK, EDRE-Labview, EDRE-Testpoint and WaveView for Windows
  • Dimensions: 65(H) x 80(W) x 148(L) mm
  • Supplied with EDR Enhanced Software & Universal Switch Mode 9V PSU

The MicroDAQ SRL-120A is a general purpose digital I/O products which communicates to the host PC via a RS-232 or RS-485 (dependent on model) serial connection. Based on the industry standard 82C55 PPI device. It features 120 TTL level digital I/O lines. The I/O can be programmed in banks of 8 as inputs or outputs.

Two interface versions are available for the serial MicroDAQ range, these include RS-232 models and RS-485 models. The RS-232 models are best suited for short distances (up to 30 metres) or for use with hand held PC�s such as PDA�s.

The RS-485 models allow for long distance data transmission (up to 1200 metres). These RS-485 models are ideally suited for process control applications in a plant or industrial environment, which require long cable runs.

An easy-to-use configuration panel allows for easy setup of the devices. Drivers are provided for the most popular operating systems, as well as for the WindowsCE� family of products including PocketPC2002 and PocketPC2003. This support allows the serial MicroDAQ range to be controlled directly from a palm held PC with a serial port. Each unit is supplied with a WindowsCE API and control panel which is downloaded from a PC to the handheld device. Embedded Visual C++ and embedded Visual Basic examples are supplied.

This digital I/O product is ideal for use in the connection between a computer and the outside world. Allowing computer programs not only to sense real world events, but control them as well. Applications include man-machine interfacing, driving high power loads, sensing switch contact closures and much more.

Included Installation Kit (R-SRL-RS232-AC)

  • 4 x Rubber Vibration Mountings
  • 2 x Mounting Clip for uDAQ & Industrial DAQ
  • 1 x AC Power Cable (2.5 m)
  • 1 x 5 m Serial Cable (F-F)

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Included Installation Kit (R-SRL-RS485-AC)
  • 4 x Rubber Vibration Mountings
  • 2 x Mounting Clip for uDAQ & Industrial DAQ
  • 1 x DC Power Cable (2.5 m)
  • 1 x uDAQ ADPT 9

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We can also supply this unit with an in-vehicle DC power supply. This item can be found in the optional accessories.

Ordering Information

Item Description Price Qty
SRL-120A-RS232 Serial 120 Line Digital I/O Unit (RS232 Interface) $ 695.00
SRL-120A-RS485 Serial 120 Line Digital I/O Unit (RS485 Interface) $ 698.00

Optional Accessories

Item Description Price Qty
ADPT-25-S Short MicroDAQ mini Screw Terminal Adaptor $ 58.00
ADPT-25-M Medium MicroDAQ mini Screw Terminal Adapter $ 58.00
ADPT-25-L Long MicroDAQ mini Screw Terminal Adapter $ 58.00
ADPT-2526 DB25 (F) & IDC26 (M) to 27way Screw Terminal $ 93.00
DB25M/F DB25(M) to DB25(F) Multi-core Screened Cable $ 22.00
PC-37F 24 Channel Opto-22 Solid State Relay Module $ 648.00
PC-38X 24 Channel I/O DRIVER MODULE $ 79.00
PC-43C 24 Channel Digital Opto-Isolator I/P Module $ 217.00
PSD25-2 In-Vehicle MicroDAQ Power Supply $ 42.00