[Asterisk-Users] E&M Signaling

[David Boyd]

Does the system you are connecting to have a digital interface (T1) or is it
truly a 2/4 Wire E&M system?  If it is T-1 then you do not need a channel
bank however if it is the analog interface then you will.  There are several
choices of banks available and there are also several drop and insert muxes
that can provide you a smaller number of channels that you can use instead
of using all 24 from a channel bank.

Dave


-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com]On Behalf Of Tilghman
Lesher
Sent: Monday, March 22, 2004 4:44 PM
To: asterisk-users at lists.digium.com
Subject: Re: [Asterisk-Users] E&M Signalling


On Monday 22 March 2004 15:35, David J Carter wrote:
> I may need to connect to a system with E&M connectivity.
> Am I right in assuming a T1 card and Channel Bank will give me this
> connectivity?

You typically do not need a channel bank when using E&M.  However,
you will probably need a T1 crossover cable, if you are not connecting
to the outside world (i.e. cross 1&2 with 4&5).

-Tilghman

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