May I point out that "modern Units" such as 313 can happily run without the
PTS - 313034 was used in this configuration in the late 80's early 90's when
its PTS was powering 316999 at clacton Depot(the networker testbed that was
ex class 210 DEMU vehicles ), I suspect that even 507/508 could also be run
the same

any DC Unit where the power equipment is housed in the DMS should be able to
run under their own power.
i seem to recall that the compressors are also housed in the DMS of
313/507/508 units

correct if im wrong by email please

kev

"Boltar" wrote in message
om...
Chris J Dixon wrote in message
. ..
Boltar wrote:

(Dominic) wrote in message
. com...
Are the driving motor cars of modern DC EMUs such as Networkers,
Junipers, Electrostars and Desiros independent multiple units in this
way? It seems that no set is ever run without a pantograph trailer
car
- is this because the motor cars rely on the electronics or other
systems in this car, even when running from the DC 3rd rail? Or can
the motor cars run seperately from the rest of the set?

AFAIK all the gubbins and even the motors are in the car that has the
pantograph whereas the cars at the front and the rear which although
they
have no motors have the shoegear.

For DC Electrostar, you are comprehensively wrong.

Yes , well DC only stock doesn't have pantographs does it so I suspect I
would be. And if you're going to state the bleeding obvious how about you
give a bit more info to the initial poster while you're at it.

B2003