ORBCOMM OG2 Modem Integration Manual
8
2.2
Interface
Product developers should plan for connection to the host system as indicated in the following
table.
2.2.1
User Connector Pin Description Table
Pin #
Title
In-Out /Voltage
Description
1
USB
Diff, 1.8v
1
Data, negative
2
Main Power
4 - 15v
2
Input Power
3
USB P
Diff, 1.8v
1
Data, positive
4
GND
Input
Ground
5
Master RX
Input, pin 6 user
volt.
3
RX, UART 0
6
User Data Power
1.8 to 3.6 V
3
Master & Debug Serial Logic
Level
7
Master TX
Output, pin 6 user
volt.
3
TX, UART 0
8
SPI1 PCS0
Output, 1.8v
1
PCS0, SPI #1 chip select
9
GND
Input
Ground
10
SPI1 CLK
Output, 1.8v
1
CLK, SPI #1 clock
11
Debug UART RX
Input, pin 6 user
volt.
3
RX, UART 5
12
SPI1 SOUT
Output, 1.8v
1
SOUT, SPI #1 data out
13
Debug UART TX
Output, pin 6 user
volt.
3
TX, UART 5
14
SATELLITE-IN-VIEW
Output, 1.8v
4
GPIO or SIN, SPI #1 data in
15
MASTER RESET
Hi-Z, active LO
5
Internal 10k ohm PU, PD with
FET or transistor.
16
GPIO0/FTM/CAN RX
Input/Output 1.8v
1
RX CAN-0, Capacitive Touch,
GPIO
17
TAMPER 1
Input, 1.8v
1
Internal PU
18
GND
Input
Ground
19
EXT INT2
Input, 1.8v
1
External Interrupt
20
GPIO1/FTM/CAN TX
Input/Output 1.8v
1
TX CAN-0, Capacitive Touch,
GPIO
21
GND
Input
Ground
22
UART 4 RX
Input, 1.8v
1
RX, User serial port
