TS-7250-V3 XBEE Header

The CN20 header is a 2mm pitch 2x10 header which supports XBEE form factor modules. These include Nimbelink and Digi cell modems, Zigbee, Digi mesh, and other third party radios.

For Cell radios that use USB this must be enabled. This turns off USB to the bottom port on the dual high type A connector. Only enable if this is compatible with your module:

# Turn on the USB
gpioset 2 28=1

This header can provide 3.3V or 4V as some cell radios require higher voltage.

# Turn 3.3V & 4V off;
gpioset 6 4=0 11=0

# For 3.3V modules:
gpioset 6 4=1

# For 4V modules:
# gpioset 6 11=1

Signals	Pin Layout
Pin Signal 1 VCC (XBEE_3.3V or NIMBEL_4.7V) 2 ttymxc3 TXD 3 ttymxc3 RXD 4 GND 5 NC 6 NIMBEL_4.7V 7 USB_XBEE_P 8 USB_XBEE_N 9 GND 10 GND 11 GND 12 ttymxc3 CTS# 13 NC 14 3.3V VREF 15 GND 16 GND