In observance of Independence Day, DataPro will be closed Thursday, July 4th, 2024. Orders placed after 12:00 PM PST on Wednesday, July 3rd will be processed on Friday, July 5th.
Cross an uncrossed signal or uncross a crossed signal, thereby inverting the transmit/receive pairs on an RS232-wired 25-pin cable with this male-female adaptor.
 
1022-FM
Null Modem Adaptor DB25FM
Special order - not normally stocked.
EACH
$
5.95
76 in stock
This DataPro male-female passthrough adaptor will cross an uncrossed signal or uncross
a crossed signal, thereby inverting the transmit/receive pairs on an RS232-wired
25-pin cable.
When connecting from a device to a modem, an asynchronous cable is needed. When
connecting two devices directly to each other, a "null-modem" crossover cable
is needed. If you have the wrong cable, cross it over with this coupler.