Ecu - M31X - HID Lumidigm M Series Mechanical Integration Manual

Lumidigm M-Series M3xx Modules Mechanical Integration Guide, PLT-02217, Rev. A.0
Connector Position J7
RS232 & Alternate Power.
Mating Hirose connector housing p/n is DF13-4S-1.25C
with 26-28AWG crimp terminal p/n DF13-2630SCF.
J7-1 = RS232 RD
J7-2 = RS232 TD
J7-3 = Ground
J7-4 = 5VDC (only if J4-1 is unused)

3.5 ECU - M31x

Note: This section applies to the M31x module ECU only. If you are designing for an M30x
module, please refer to the M30x ECU discussion that precedes this section.
The M31x ECU dimensions are shown in Figure 13. The ECU should be placed in proximity
(both distance and orientation) to the sensor head to allow for proper installation and
routing of the flex cable that connects these two components of the M31x. The ECU is a
printed circuit board (PCB) with components on both sides. Wiring for power and I/O
interfaces is attached to connectors, perpendicular to the PCB. Allowances for wiring need
to be made when considering the M31x ECU mounting strategy.
Figure 13: M31x ECU dimensions
The total ECU thickness with components and connector receptacles is 3.36mm. The PCB
itself is 1.59mm thick. As with the sensor head, a complete 3D model is available from
Lumidigm to facilitate mechanical design elements of the customer enclosure required to
capture and secure the M31x ECU.
Note: The M310 OEM Module does NOT meet FCC emissions standards and must be
shielded in a grounded enclosure.
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