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markysharkey
Premium
join:2012-12-20
united kingd
reply to markysharkey

Re: CME to Analog PBX.

What I want to do is yank the line out of the telephone on my desk and shove it in to the FXO port of the CME router.
The phone on my desk seems to be analog with an RJ11 connector using 2 pairs. The phone gets voltage (30 volts according to the manual, which offered little else to help me, BUT, I'm not even sure what would help me at this point so it's difficult to even decide what info is relevant) which powers the LCD screen etc. To me this seems similar to a regular PSTN line here in the UK which supplies voltage (50 volts on a BT line) to the CPE handset.
I need to check if it's ground or loop start but that's an easy one in the CLI if I fail to Google it.
Before I go plugging the RJ11 into the FXO card I need to know if I can damage my Cisco kit. If it just won't work, that OK. But if I break the CME router or FXO card, that would not be OK! Any ideas?
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Binary is as easy as 01 10 11


TomS_
Git-r-done
Premium,MVM
join:2002-07-19
London, UK
kudos:5
I would recommend talking to someone qualified with Panasonic PABXs...

Whats more expensive, a replacement router, or a little bit of cash for some consulting?

cramer
Premium
join:2007-04-10
Raleigh, NC
kudos:9
reply to markysharkey

What I want to do is yank the line out of the telephone on my desk and shove it in to the FXO port of the CME router.

Now I've got the picture...

From everything I've seen (which is admittedly little -- long ago EoL'd technology), it's a digital PBX system. As such, if you plug it into a Cisco FXO port, there's a very good chance you'll fry the port. (I'm not going to tell you how many ports I've seen damaged by people digital phone systems into them.)

My advice... don't try it on anything you aren't willing to replace. Try it on a buttset or old analog phone first.

PS: a POTS line is a single pair. tip and ring. I know several PBX systems send power down an extra pair. The FXO card shouldn't have any connections on those pairs, but might!

markysharkey
Premium
join:2012-12-20
united kingd
TomS and Cramer;

Gotcha. Thanks.

On to the next...
--
Binary is as easy as 01 10 11