Hardware pinouts information and cables schemes

RS232 to RS422 cable specification users reports and reviews

[Discuss at the forum] [SUBMIT new pinout]

There are 9 approved reports in our database

Date Content
User opinion Comment Approved by moderator?
INCORRECTThe pinouts on the rs-422 port are incorrect. The correct pin-outs for the standard rs-422 are: 1)Frame Ground - 2)Transmit A - 3)Receive A - 4)Receive Common - 5)Spare - 6)Transmit Common - 7)Transmit B - 8)Receive B - 9)Frame GroundAPPROVED
2010-02-27 17:06:37rev. 2CORRECTAPPROVED
2011-09-01 08:58:22rev. 2CORRECTAPPROVED
2012-03-05 19:38:06rev. 2CORRECTAPPROVED
2012-07-31 09:20:48rev. 2CORRECTNo errors thanks Muhammad Arshad Lahore Pakistan. APPROVED
2012-09-24 01:52:49rev. 2CORRECTEXELLENT!!APPROVED
2014-08-27 07:09:37rev. 2CORRECTMay need to adjust the resistance impedance input/output in some cases. But the circuit is good and useful. ThanksAPPROVED
2014-12-03 13:32:34rev. 2CORRECTAPPROVED
2015-06-20 02:59:49rev. 2CORRECTCorrectAPPROVED

History of users contributions

Date Content
Author Comment
2009-05-14 22:37:39rev. 2
2011-02-20 14:10:29rev. 2

Back to RS232 to RS422 cable pinout

Pinouts.ru > Pinout of RS232 to RS422 cable and layout of 25 pin D-SUB male connector and 37 pin D-SUB male connector
should be correct