RE: RS232/482 Qs

["Ian B" <Ian@xxxxxxx>]

Unfortunately I arrived late after three hours travelling and missed the food and most of this demo so I cannot really say. I dare say I will see it soon and will let you know.

 

Ian

-----Original Message-----
From: Frank Mc Alinden [mailto:armagh@xxxxxxx]
Sent: 11 May 2002 11:08
To: ukha_d@xxxxxxxSubject: Re: [ukha_d] RS232/482 Qs

Hi Ian

        You made it to the meet, i thought you were about to become a dad around this time ? The relay board passed its first test ,very good . Is this  Home Automator  software as good as stuart says?.

Frank Mc

----- Original Message -----

From: Ian B

To: ukha_d@xxxxxxx

Sent: Saturday, May 11, 2002 6:22 PM

Subject: RE: [ukha_d] RS232/482 Qs

I don't know for a fact but if you take the longest available serial lead as a guide you won't be too far out.

 

No idea on the 485 front as I build my own serial or USB to 485 cards. Last month there was a serial to 485 board as a project complete with PIC code and everything in Elector Electronics (photo copies availably, just ask). The only tricky bit was the PCB as you could not buy it. Let me know if you want to pursue it as I was thinking of building one of these for myself.

 

Ian B

 

p.s. it was a brill evening and despite trying we could not blow up the relay board from my site (www.mollyology.com).

 

-----Original Message-----
From: Timothy Morris [mailto:timothy.morris@xxxxxxx]
Sent: 10 May 2002 20:18
To: ukha_d@xxxxxxxSubject: RE: [ukha_d] RS232/482 Qs

No harm done. I must admit I was pretty impressed with what you managed to achieve J

 

Tim.

 

-----Original Message-----
From: Dave McLaughlin [mailto:dave@xxxxxxx]
Sent: 10 May 2002 18:52
To: ukha_d@xxxxxxxSubject: Re: [ukha_d] RS232/482 Qs

 

Sorry Tim,

 

I just read your email again and I missed the first part.. Now I feel a prat but it was good information anyway???

 

Dave...

----- Original Message -----

From: Timothy Morris

To: ukha_d@xxxxxxx

Sent: Friday, May 10, 2002 6:22 PM

Subject: RE: [ukha_d] RS232/482 Qs

 

Thanks for the answer Dave, but that ain’t really what I wanted to know J

 

Tim.

-----Original Message-----
From: Dave McLaughlin [mailto:dave@xxxxxxx]
Sent: 10 May 2002 17:31
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] RS232/482 Qs

 

Hi Tim

 

I have successfully ran 485 at 9600 bps on 10,000 feet of screened twisted pair in an umbilical with 90Vdc on the power cores with only the occasional lost packet (use a CRC based telemetry and you will be ok)

 

Dave...

----- Original Message -----

From: Timothy Morris

To: ukha_d@xxxxxxx

Sent: Friday, May 10, 2002 5:06 PM

Subject: RE: [ukha_d] RS232/482 Qs

 

Sorry that should be 485….

 

-----Original Message-----
From: Timothy Morris [mailto:timothy.morris@xxxxxxx]
Sent: 10 May 2002 16:42
To: ukha_d@xxxxxxx
Subject: [ukha_d] RS232/482 Qs

 

2 Questions.

 

Firstly what is the maximum length for reliable 232 connections at 9600 baud

 

Is there a cheap source of 482 PCI cards – in case 1 above is not enough!

 

Tim.

 

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