Re: Wanted - two pair cable for 12VDC and RS485

["BruceR" <brNOSPAM@xxxxxxxxxx>]

Cat5 will do the job nicely. I support 16 phones with a 12vdc power pair
and 3 lines and it works perfectly. I'd like to learn more about your
"various reasons" for not wanting to use Cat5.   I also run RS485,
ethernet, alarm, audio, video and doorbells with Cat5/5e.  When I built
the house I ran about 150 drops to everywhere I could think of and, of
course, I still missed a few places.

From:denbigh1974@xxxxxxxxxxxx
denbigh1974@xxxxxxxxxxxx

> I am looking for cable with two twisted pairs: one which can carry
> 500mA/12VDC power up to 80 metres and and another which is screened +
> twisted and suitable for a RS485 network. The cable will be used for a
> variety of applications  - CCTV control, a small RS485 network
> including a security alarm keypad, lighting control system.
>
> Is there something suitable available in the UK? (I've looked at Cat5
> cable but would prefer not to use this for various reasons.)
>
> Belden 1502R (http://tinyurl.com/9pct9) has a 18AWG power pair and a
> 22AWG twisted pair. BUT it is only available in the US and can only be
> exported at high cost and in large lengths.
>
> Would I be better off buying separate cables for power and signal?