Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread Jack Coats
My only suggestion is to ensure the wire you have is stranded, not solid. Stranded will be 'softer' and deal better with the bending needed for use in drag-chain use. Solid core is better for infrastructure use (putting in walls), stranded is found in 'patch cables' and used in wiring closets to

Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread Ben Potter
From: andy pugh [mailto:bodge...@gmail.com] > On 1 January 2016 at 16:16, Peter C. Wallace wrote: > > SSerial is differential RS-422 at 2.5 MBits/sec and requires ~100 Ohm > > differential cable cable impedance. This usually means twisted pairs > > are required for TX and RX

[Emc-users] Smart-Serial cabling

2016-01-01 Thread andy pugh
My lathe build is going to have a smart-serial device mounted in the lathe apron. This means that I need a CAT5 cable in the drag-chain, and also a 24V supply for the proximity sensors. Finding oil/coolant resistant CAT5 rated for drag-chain use is likely to be a challenge. I have lots of this

Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread Rene Hopf
> On 01 Jan 2016, at 12:23, andy pugh wrote: > > My lathe build is going to have a smart-serial device mounted in the > lathe apron. This means that I need a CAT5 cable in the drag-chain, > and also a 24V supply for the proximity sensors. > Finding oil/coolant resistant CAT5

Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread Bertho Stultiens
On 01/01/2016 12:23 PM, andy pugh wrote: > Is there any reason to think that the 2x3 screened pairs in that cable > will be unsuitable for transporting smart-serial data The bandwidth of rs232 style serial connections is so low that you will not see any problems with twisted pairs. I assume that

Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread Gene Heskett
On Friday 01 January 2016 06:23:06 andy pugh wrote: > My lathe build is going to have a smart-serial device mounted in the > lathe apron. This means that I need a CAT5 cable in the drag-chain, > and also a 24V supply for the proximity sensors. > Finding oil/coolant resistant CAT5 rated for

Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread Bertho Stultiens
On 01/01/2016 05:16 PM, Peter C. Wallace wrote: >> The bandwidth of rs232 style serial connections is so low that you will >> not see any problems with twisted pairs. I assume that you are not >> connecting half a kilometer of cable with a speed higher than 115k2 baud >> (or you may run into

Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread andy pugh
On 1 January 2016 at 16:16, Peter C. Wallace wrote: > SSerial is differential RS-422 at 2.5 MBits/sec and requires ~100 Ohm > differential cable cable impedance. This usually means twisted pairs > are required for TX and RX (the 5V/GND power connections are not critical) The

Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread Peter C. Wallace
<emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Smart-Serial cabling > > On 1 January 2016 at 16:16, Peter C. Wallace <p...@mesanet.com> wrote: >> SSerial is differential RS-422 at 2.5 MBits/sec and requires ~100 Ohm >> differential cable cable impedance.

Re: [Emc-users] Smart-Serial cabling

2016-01-01 Thread Peter C. Wallace
er (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Smart-Serial cabling > > On 01/01/2016 12:23 PM, andy pugh wrote: >> Is there any reason to think that the 2x3 screened pairs in that cable >> will be unsuitable for transporting smart-serial d