[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