[c-nsp] Coax question for DS3

[Ted Mittelstaedt]

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Nick Voth
> Sent: Friday, January 18, 2008 7:18 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Coax question for DS3
>
>
> Hey guys,
>
> I've never had to pull our own DS3 coax cable before and I'm now
> faced with
> it. It's no big deal, BUT in some of the Cisco documentation it recommends
> that the 2 strands of coax be bound together with shrink wrap or something
> like that. I'm using 75-ohm RG6 shielded coax with the
> compression type BNC
> connectors. Is it really necessary to tie the two cables together
> to reduce
> the effects of EMI?
>



They make cable that has the 2 coaxes bound together along with a
tracer wire - Commscope part # 735T2 or equivalent - but the shielding
on the coax is supposed to block EMI.  Shrinkwrap has no shielding so
it wouldn't provide any assistance here.  It sounds like a passage
written by someone who doesen't understand EMI or cabling very well.

Ted