[TrunkCom] Primary And Secondary Control Channels

Wayne M H [email protected]
Tue, 24 Sep 2002 20:19:26 -0700


On Tue, 24 Sep 2002 21:48:26 -0500, Larry Williams
<[email protected]> wrote:

>JERRY NONE wrote:
>> Motorola has FAILSOFT, what about EDACS and LTR or LTR
>> MultiNet, whta d othey have?
>
>LTR has no status channel. All repeaters can and do work independently
>within the system, with the exception of validation.
>MultiNet has a status channel but if it fails, can still operate because
>a "HOME" channel(like secondary status, but reverts to operation much
>like LTR) is designated in programming. Not familiar with the EDACS.


Regarding EDACS:

>   Fault-tolerant design
>  =20
>   EDACS has been designed so that no single point of failure will bring
>   the system down. It has a distributed processing architecture,
>   designed to remain operational and provide full trunking capability
>   even under the most adverse conditions.
>  =20
>   Each radio base station has its own trunking controller, which
>   communicates directly with its 'parent' site controller. Should the
>   site controller fail, the base station trunking controllers have the
>   intelligence to assume control of the system and continue trunking.
>   Users experience virtually no change in service: system access time =
is
>   as fast as usual, and only non-critical functions are sacrificed.

I don't recall the source of the above info but basically EDACS
handles failure a lot better than Motorola and when a fault occurs
trunking still continues.

-Wayne