GMM-U1 Datasheet, PDF(10/36 Page) List of Unclassifed Manufacturers

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GMM-U1 Datasheet, PDF (10/36 Pages) List of Unclassifed Manufacturers – GPS Module

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GlobalTop Technology

Gmm-u1 Data Sheet

10 Ver. V0G

2.4 Pin Assignment

Name

1 ENABLE

2 VCC

3 GND

4 N_Reset

5 VBACKUP

6 GND

7 DP

8 DM

9 RTCM

10 TXDA

11 RXDA

12 GND

13 3D_FIX

14 1PPS

15 GND

16 RF_IN

I/O

Description & Note

I Keep open or pull high to Power ON

PI Main DC power input

P Ground

I Reset Input, Low Active

PI Backup power input for RTC & navigation data keep

P Ground

I/O USB port D+

I/O USB port D-

I Serial Data Input for DGPS RTCM data streaming

O Serial Data Output for NMEA output

I Serial Data Input for Firmware update

P Ground

O 3D-fix indicator

O 1PPS Time Mark Output 2.8V CMOS Level

P Ground

I Antenna Signal Input

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