Connector Pinouts - Omega Engineering 100/200 Series User Manual

Data acquisition for notebook, desktop, and tower pcs

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Table Of Contents

Table of Contents

To verify connections, turn ON the power switch by flipping the rocker- switch to the "1" position, and the

POWER LED should light up. If using a printer, check operation by issuing a <PRINT SCREEN> or

equivalent command.

Note: Software installation is necessary before the DaqBook can perform any functions.

Parallel Port Capabilities

The DaqBook/112, /120, /200, /216, and /260 (but not the /100) models can take advantage of enhanced

parallel port (EPP) communication. Standard LPT ports on an IBM-compatible PC have 4-bit and 8-bit

modes to read data from the printer port. The 8-bit mode is faster than the 4-bit, but not all printer ports

support this mode. EPP ports are parallel ports with additional hardware that allows the DaqBook to

communicate with the PC faster (3 to 10 times) than standard parallel ports.

EPPs require special hardware, and only certain computers are EPP-capable. Most laptop computers that

use the Intel 386SL or 486SL chip set (which includes the 82360 I/O controller) are EPP-capable. For

computers with plug-in card slots, EPP adapter cards are available. You may wish to consult your

computer documentation for details about your machine and possible adapter cards. For more information

about supported EPP hardware and machine-specific issues, refer to the README file supplied with the

software.

Note: The EPPs may be configured for any available I/O address but must be configured for either

interrupt 5 or 7. The DaqBook driver does not support the use of interrupts 10, 11, 12, or 15.

In addition to supporting the special hardware required for EPP capability, some computers and parallel

port cards come equipped with special BIOS or device drivers which support the EPP BIOS Draft Revision

3 (and possible Draft Revision 5) standard. This standard specifies a software level interface between

applications and the EPP hardware itself. The DaqBook/DaqBoard software driver supports computers

and parallel ports equipped with EPP BIOS Draft Revision 3.