[GreenKeys] Black Box RS232 - current loop converters on epay - 232/CL-E

[Jerry Murphy]

There is a seller on that popular internet auction website who has new 
Black Box CL050A units for sale. These are the devices that do bi-directional 
conversion of RS-232 and current loop signals.  $29.00 each or best offer 
plus shipping.  Here's the link to the sale:  cgi.ebay.com/382428749785

The CL050A is intended for low voltage use.  Low voltage means that it is 
looking to key a selector magnet driver.  It should not be used to directly 
key the magnets.  The CL050A can supply an 18 volt loop at either 20 or 60 ma.  
As a passive device, it can key a loop as long as it does not exceed 30 volts.
Here's the link to the manual for the Black Box CL050A:
    http://ftp.blackbox.com/manuals/C/CL050A.pdf

The seller has a "best offer" option.  The last time the seller offered the
same kind of items for sale, a buyer used the best offer option.  Here's a 
link to the sale results:   
  http://offer.ebay.co.uk/ws/eBayISAPI.dll?ViewBidsLogin&item=382377491185

No connection to sale. 

Jerry Murphy