Re: SAMRA Show Jan. 27th-28th

That is a lot of steps to get a train rolling, especially when you have frequent power shutdowns due to a coupler plunger hitting a track gap or something and then you have to add hitting the circuit breaker reset into the mix.

I understand we need to address the TIU signal issues. Maybe suggesting a DPDT switch was putting the cart before the horse.

Regardless of the solutions, we need to look at what it takes to operate trains in DCS and TMCC and adress the issues so that it is easier (less frustrating) and more fun for all.

Let's keep thinking of ideas but keep in mind we have to address both command systems we have on the layout.

Ed

----- Original Message ----
From: Ira Schneider <ira_schneider@Iname.com>
To: "ttat-members@aoot.com" <ttat-members@aoot.com>
Sent: Wednesday, January 31, 2007 10:41:51 PM
Subject: Re: SAMRA Show Jan. 27th-28th

Scott,

The power currently goes from the transformer to the TPC, then the TIU, then to the track.

Putting a switch between the transformer and the TPC/TIU only cuts out the TPC.

In order to select the TPC vs TIU to power the track, the switch would have to go between
the track input line and the output of the TPC and the TIU. This would send the DCS
signal from the TIU through the switch to the track, possibly degrading the signal.

I am particularly concerned about putting a switch between the TIU and the track because,
as you may already know, the MTH DCS system cannot detect a Protosound 2.0 engine
on any of the sidings. I suspect the problem is either the toggle switches in the siding
control box or the relay (used to interrupt power to the sidings when the DIR button is pressed).
They both intercept the power flow between the TIU and the sidings.

Ira

------
TTAT members reflector.