[time-nuts] Lucent KS-24361 RS-422 interface pinout

planophore at aei.ca planophore at aei.ca
Wed Dec 3 07:28:00 EST 2014


Good morning Anthony,

Yes, I did see your posting. Thank you for your help.

cheers, Graham ve3gtc


On 12/3/2014, "Anthony Roby" <aroby at antamy.com> wrote:

>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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