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-3shows the layout of another board for the RCM4000 to be plugged into. These reference design values are relative to one of the mounting holes.

J1

0.875

(22.2)

0.050

(1.27)

J3

RCM4000 Series

Footprint

0.284

(7.2)

0.334

(8.5)

Figure A-3. User Board Footprint for RCM4000

User’s Manual

83

Page 89
Image 89
Digi user manual Headers, Figure A-3. User Board Footprint for RCM4000