Z-4000 Remote Control Question

That socket was installed for "future use" before the TIUs were made.  It would be for a DB-9 serial cable and is now considered a "factory extra".

Sorry to be ignorant.  What is a TIU?  How would it have been used?

Just consider it to be "decoration".

Okay, let me back up.  The Mike's Train House Z-4000 with wireless remote box plugged in and used with Remote was MTH's first wireless remote system for running conventionally (controlling track voltage).  The DB-9 socket was probably installed for future upgrades or connection to future systems.

Forward to Protosound 2 and the MTH Digital Command System (DCS).  The DCS Remote Control Set with the Track Interface Unit (TIU) and DCS Remote can replace the Z-4000 remote box and remote.  The first Track Interface Units (TIUs) also have the DB-9 socket that is used for TIU software changes and connecting to Lionel's TMCC/Legacy remote systems.  In the newer TIUs a USB socket has replaced the DB-9 socket.

Thank you Susan!!!!!!!!!

Susan Deats,

   Good job, right on the money.  I had one of those 1st TIU's with the DB-9 socket.

PCRR/Dave

 Hello Diok,

Please contact me offline via my email (in my profile). Have a question please.

Susan,

In the newer TIUs a USB socket has replaced the DB-9 socket.

Not exactly.

The Rev. L TIU has a USB port in addition to the RS-232 serial port.

This and a whole lot more is all in MTH’s “The DCS O Gauge Companion 2nd Edition", available for purchase as an eBook or a printed book at MTH's web store!

Barry, thanks for the correction!