Digi RCM4000 - Manual (Page 89)

User’s Manual 83
A.1.2 Headers
The RCM4000 uses a header at J3 for physical connection to other boards. J3 is a 2 × 25
SMT header with a 1.27 mm pin spacing. J1, the programming port, is a 2 × 5 header with
a 1.27 mm pin spacing.
Figure A-3 shows the layout of another board for the RCM4000 to be plugged into. These
reference design values are relative to one of the mounting holes.
Figure A-3. User Board Footprint for RCM4000
J3
RCM4000 Series
Footprint
J1
0.050
(1.27)
0.284
(7.2)
0.334
(8.5)
0.875
(22.2)