User's Manual

TRM-300 / Integration guide
F070033PT_5.1_en
Page 15 of 26
en
9.1 GROUNDING
There is only one common ground for the power supply and I/Os in the TRM-300. That is, there are no
separate analog/digital ground pins in the auxiliary connector.
All ground pins must be connected together in the final application.
9.2 POWER SUPPLY
The TRM-300 is powered by the hardware application in which it is integrated, always through the
PowerTrunk power auxiliary cable.
The power auxiliary cable connector is a 2 pin Molex Mini-Fit Jr.
TM
Plug (model 5559-39-01-2021) with the
pin-out according to the following drawing. The application mating connector would be a 2 pin Molex Mini-Fit
Jr.
TM
Receptacle (model 5557-39-01-2020). Avoid a reverse polarity connection.
The power supply must be capable of supplying at least 3.5A. The TRM-300 does not have protection for
over-current, so the hardware application should include, at least, a 4A fuse.
PowerTrunk recommends its 8VDC power cable accessory.
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SUPPLY
GROUND
Power auxiliary cable
Fuse