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LF: QRS/Ports

To: rsgb <[email protected]>
Subject: LF: QRS/Ports
From: "lawrence mayhead" <[email protected]>
Date: Thu, 14 Feb 2008 19:50:14 +0000
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Does anyone have experience of using a computer without RS232 for QRS.
I have tried to get an output from the 9 pin serial ports on my computer, it
appears that the -12 volts  on  the appropriate pin (pin 4 for Key ) drops only
momentarily. If this is correct I will need a latch to hold the command until
released. Is this the general experience or am I doing something wrong (again ! )
Thanks 73 Laurie.
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