[asterisk-users] Zaptel FXS Cards - Station Distance

[Kevin P. Fleming]

Tim Nelson wrote:
> Hello! In the near future, I'll be deploying an asterisk system that will have (in addition to many SIP handsets) four FXS handsets. Is there a known limitation to the length of cabling that can be used between a Digium/Openvox/Sangoma FXS card and the end station? I understand the card will need a molex power connector plugged in to provide extra voltage. With traditional phone systems, I have not seen any distance limitations. I would just like to verify that the FXS ports are able to provide sufficient power for longer runs. Thank you!!!

You don't quote any numbers here, and 'longer' is not anything we can
relate to.

However, I can say that the FXS line drivers on Digium analog modules
should be able to handle 1000' runs or so, but not more than that. This
should be equivalent to what any standard PBX with FXS ports can do,
unless it has special 'long line' drivers.

-- 
Kevin P. Fleming
Director of Software Technologies
Digium, Inc. - "The Genuine Asterisk Experience" (TM)