I/O Ports¶
Power Input and Power Switch Connector¶
Do not connect Voltage to the PSW Pin on the Power Connector!
Power Connector Pin-Out |
|
|---|---|
GND |
Ground |
VCC |
12-24V |
GND |
Ground |
PSW |
External Power Switch Connector |
The External Power Switch Connector can be used to connect an additional On/Off Switch to the Arrakis Pico MK3.
COM and DI/DO Connector¶
COM1 can be set to RS232 or RS485 through the BIOS, with the default being RS232.
TB2-TB 8pin connector (3.5mm) (RS232 Mode)¶
PIN NO. |
DESCRIPTION |
PIN NO. |
DESCRIPTION |
|---|---|---|---|
1 |
NTXD |
5 |
|
2 |
NC |
6 |
|
3 |
NRXD |
7 |
|
4 |
GND |
8 |
TB2-TB 8pin connector (3.5mm) (RS485 Mode)¶
PIN NO. |
DESCRIPTION |
PIN NO. |
DESCRIPTION |
|---|---|---|---|
1 |
NC |
5 |
|
2 |
RS485_DATA- |
6 |
|
3 |
RS485_DATA+ |
7 |
|
4 |
GND |
8 |
2-4 Digital Input / Output / Watchdog Timer¶
TB2-TB 8pin connector (3.5mm)¶
PIN NO. |
DESCRIPTION |
PIN NO. |
DESCRIPTION |
|---|---|---|---|
1 |
5 |
DI |
|
2 |
6 |
GND |
|
3 |
7 |
DO |
|
4 |
8 |
GND |
Note:
F75111N-1 I2C bus address is 0x9C.
DI input range is +12V or +24V.
DI pin default pull-up is 10KΩ to +3.3V.
DO output voltage rail is from DC-in (+12V or +24V) with a current limit of max 2A.
For F75111N I2C watchdog timer device:
Input low Voltage (VIL): +0.8V Max
Input High Voltage (VIH): +2V Min
Output low Current (IOL): 10mA (Min) at VOL=0.4V
Output High Current (IOH): -10mA (Min) at VOL=2.4V
Watchdog Timer value: 0~255 sec
The system will issue a reset when the WDT is enabled and the hardware countdown reaches zero. The reset timer has a 10~20% tolerance depending on the temperature.
Antennae Connector Position¶
Ant. 1: LTE Main Connector
Ant. 2: LTE Diversity or GNSS, depending on customer configuration