Operation of Parallel Port The Parallel llO card ... - Matthieu Benoit

The Parallel llO card provides one Serial (RS232C) port and one Centronics compatible port and is a direct replacenlent for the existing double RS232C card ...
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Operationof Parallel Port The Parallel llO card provides one Serial (RS232C)port and one Centronicscompatible port and is a direct replacenlentfor the existingdouble RS232C card the parallel port ieplacesthe existing RS232C port 2. The parallelport is a bi-directionalversion of the Centronicsinterfactwhich nleans that data can be uploadedfrom AND downloadedto the with a PC, a special format programmer.However,in order to communicatebi-directionally is uled when the system is in remote mode. StagOom1 (version7.0 or late0 is required to operatethe programmerin remole from a PC. Operationof the paralletport is similar to operationof the serial port. The only ditferences being baud rate ihformatibnand transparentmode are ignored.Data format.is selected in the Jsual way: SET 1 3. Start, stop, offset and directionare set using the lN and OUT keys in the usualway as describedin the manual, The connectingcable required is a straight (1 to 1), 25-way cable with a 25-way male D-typeconneciorat the programmerend and the relevantconnectorat the computer end e.g. a suitablecable for a Pb would have a male 25-way D-type connnectol at each end wiin pin 1 connectedto pin 1. Pin 1 of the programmer'sconnector(female)is the strobe line.