Thread View: comp.protocols.misc
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Started by Katja Schaeffer
Tue, 22 Dec 1992 19:57
Need help with bar-code-reader
Author: Katja Schaeffer
Date: Tue, 22 Dec 1992 19:57
Date: Tue, 22 Dec 1992 19:57
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This is a very desparate plea for help. I am currently working for a very small company, and am having a very tough time convincing them that the documentation which came with the bar-code-reader they just bought (for a good sum of money) is not sufficient for me to talk with it over the serial port. There is no mention of what the data looks like, and definitely no sample code. There isn't even a pin-out of the port, although I'm assuming it is standard 2-3,4-5,7. (Although the port on the unit is SCSI, the cable which plugs into it has a standard RS232 port, with only the above pins, and pin 20, being used) BTW, what is pin 20? The unit is from Symbol Technologies, in Bohemia, NY, USA. We have the following: - Datawell 160 (socket/mount for portable code-reader) - LS8560 Scanner (plugs into above) - Omnilink LL500-I100 (goes between DW160 and computer Please, can somebody help me? Today at work I had to argue with my boss for 15 minutes before I could convince her that my program wasn't working because the (above-mentioned) unit wasn't plugged in, and that we simply needed an adapter to plug it into the wall! Please, if you can tell me anything about the above unit, preferably to do with talking to it on the serial port (reading its data), I'd really appreciate it.
Re: Need help with bar-code-reader
Author: Willem van Schaik
Date: Thu, 24 Dec 1992 22:32
Date: Thu, 24 Dec 1992 22:32
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ams01@rrz.uni-koeln.de (Katja Schaeffer) writes: >This is a very desparate plea for help. I am currently working for a >very small company, and am having a very tough time convincing them that >the documentation which came with the bar-code-reader they just bought >(for a good sum of money) is not sufficient for me to talk with it over >the serial port. There is no mention of what the data looks like, and >definitely no sample code. There isn't even a pin-out of the port, >although I'm assuming it is standard 2-3,4-5,7. (Although the port >on the unit is SCSI, the cable which plugs into it has a standard >RS232 port, with only the above pins, and pin 20, being used) BTW, >what is pin 20? >The unit is from Symbol Technologies, in Bohemia, NY, USA. >We have the following: > - Datawell 160 (socket/mount for portable code-reader) > - LS8560 Scanner (plugs into above) > - Omnilink LL500-I100 (goes between DW160 and computer >Please, can somebody help me? Today at work I had to argue with >my boss for 15 minutes before I could convince her that my program >wasn't working because the (above-mentioned) unit wasn't plugged in, >and that we simply needed an adapter to plug it into the wall! >Please, if you can tell me anything about the above unit, preferably >to do with talking to it on the serial port (reading its data), I'd >really appreciate it. Sorry, but I don't know your specific model. However, the readers I know off normally will just send the code they read over the serial line. So, there is normally no need to communicate with the reader, you are only receiving data. Changing the settings of the reader (like baudrate, code-type, etc) was in my case done by reading special codes that were printed in the manual. To find out if the reader is not working, or if your software is wrong, I would start with just connecting a terminal or a PC with kermit to the device. Using a break- out box you can find out the correct wiring. BTW pin 20 is the Data Terminal Ready. Succes, Willem schaik@cnplss5.cnps.philips.nl
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