ALLEN BRADLEY 1769-ASCII / 1769ASCII (USED) COMMUNICATIONS MODULE, COMPACT LOGIX, ASCII, 2 CHANNEL, RS-232/422/485, 2 FULL DUPLEX RS-232, 2 HALF DUPLEX RS-422/RS-485. The product is used surplus. Radwell is not an authorized surplus dealer or affiliate for the Manufacturer of this product.
eBay