User's Manual

The four mounting holes have a 0.093” diameter finished opening 0.100” from the

edges designed for a #2-56 screw. The clearance height of the radio is 0.210” shield

height, .103” PCB height, 0.070” back side height. (The connectors are on the side with

the shield.)

Heat Sink contact is on the opposite side of the connectors/shield at the lower left

corner (back side as shown above).

Electrical power/signal interface:

Header assignment: 24-pin 2-row Samtec part MTMM-112-05-L-D-159

GPIO :23 24: GPIO

GPIO :21 22: GPIO

Sig GND :19 20: Baud Clk

Diag RX :17 18: Diag TX

Data RTS :15 16: Data CTS

Data RX :13 14: Data DCD

Data TX :11 12: RSSI (option)

Data DTR :9 10: Power GND

Power IN :7 8: DNC

DNC :5 6: GPIO_HS

DNC :3 4: DNC

DNC :1 2: DNC

Note: rows are reversed compared to standard nomenclature.

RF Shield

23 24

21 22

…

5 6

3 4

1 2

Header Pin Assignments