20mA current loop serial comms ? 1

[Dazmac]

I am running a network of industrial weighing machines connected to a Data Capture package on a PC via a 10 way buffering port and into the PC's serial port. These machines output data with the intention of it being sent to a printer by way of RS232 serial comms.
My problem is that one of our older machines outputs to a printer using &quot;20mA current loop&quot; serial comms. This is an apparently ancient but very robust data transmission protocol. Some old dot matrix printers accomodate this standard but the buffering unit does not. Is there a way of converting 20mA current loop to RS 232 ? >:-<

 

[edfair]

Black Box has converters. Think you can also get them from JDR. Go by the name of line drivers and basically convert voltage swings +/- 12v to current flow in alternating directions in step with the input voltage swing. Ed Fair
efair@atlnet.com

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