[time-nuts] Lucent KS-24361 RS-422 interface pinout
Anthony Roby
aroby at antamy.com
Wed Dec 3 00:03:36 UTC 2014
I sent you my posting earlier today, so hopefully you saw it. The Lucent unit seems liberal in its interpretation of the pinouts, but once you've deciphered it and got the +ve and -ve pins connected, it works reliably.
Anthony
-----Original Message-----
From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Graham
Sent: Tuesday, December 02, 2014 5:36 PM
To: time-nuts at febo.com
Subject: Re: [time-nuts] Lucent KS-24361 RS-422 interface pinout
Thanks all for answering my question. I looked through old posting but obviously didn't stumble upon Anthony's posting otherwise I would have had my answer.
I made up a short cable to connect the Startech ICUSB422 to the KS-24361
J8 Diagnostic port and I can now connect. This is the final pinout:
Startech KS-24361
ICUSB422 J8 - Diagnostic
=========================================
1 TXD- --------------> RXD- 8
2 TXD+ --------------> RXD+ 4
3 RXD+ <-------------- TXD+ 5
4 RXD- <-------------- TXD- 9
5 GND --------------- GND 7
6 NC
7 NC
8 NC
9 NC
Seems RS-422 is a standard but pinouts vary. Live and learn.
cheers, Graham ve3gtc
On 2014-12-01 21:10, Bob Camp wrote:
> Hi
>
> If you dig back a month or so, there is a post with all the pinouts on all the connectors.
>
> 4 RX+
> 8 RX-
>
> 5 TX+
> 6 TX-
>
> 3 and 7 ground
>
> It ??s serial so TX on one goes to RX on the other. + goes to + and - to -. The pins are numbered on the connector in *very* small print.
>
> Bob
>
>
>
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