Battery Connector; Led; Antenna Connectors; Radio Antenna Connector - u-blox C94-M8P Series User Manual

The pin assignments of the 20-pin J8 connector are shown in Error! Reference source not found.. For more
information, see the NEO-M8P Data Sheet [2].
Pin Nr. Assignment
1 V_BAT
2 GND
3 GND
4 RTK_STAT, monitor RTK status
5 GEOFENCE_STAT, monitor Geofence status
6 TIMEPULSE
7 GND
8 GND
9 RXD_GNSS
10 TXD_GNSS
11 GND
12 GND
13 RXD_EXT
14 TXD_EXT
15 GND
16 GND
17 SAFEBOOT_N
18 EXTINT
19 RESET_N
20 RADIO_OFF, apply 3.3 V to turn off the radio module for external UART communication.
Table 2: Pin assignments of J8 connector

5.4 Battery connector

There is a 2-pin battery connector available on the C94-M8P for connecting the board to an external battery or
DC supply. This uses a standard 5.05 mm pitch 2-pin connector for supplying a 3.7-20 VDC source or external
battery. The pin assignments of this 2-pin connector are shown in Error! Reference source not found..
Pin Nr. Assignment
1 V_BAT, battery "+"
2 GND, battery "-"
Table 3: Pin assignments of battery connector

5.5 LED

The Blue LED (DS2), mounted on the C94-M8P application board, shows the time pulse output signal from the
NEO-M8P-2 module. The LED starts flashing one pulse per second during a GNSS fix. If there is no GNSS fix, the
LED will light up without flashing.
The Green LED (DS1) indicates the RTK status. The LED flashes in float mode and stays on in fix mode. The LED is
off when there is no RTK fix.

5.6 Antenna connectors

5.6.1 Radio antenna connector

The radio antenna SMA connector on each board is used for connecting a UHF antenna. This connector is
marked with the text "UHF" on the board.
UBX-15031066 - R06 Advance Information
C94-M8P - User Guide
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