DIP Switch settings and pin definition

This chapter provides information about how to set up the dip switch, and use internal I/Os of ALDERAMIN MK3 Embedded System hardware.

Jumper and Internal Connector Overall Placement

Jumper Placement

A

1st Board to Board connector

B

DIMM sockets

C

2nd Board to Board connector

D

Mini PCIe slot 2

E

CPU socket

F

DIP Switch for Power COM

G

AT/ATX mode switch

H

M.2 KEY E connector

I

Board to Board connector for power Ignition

J

5V power header

K

5V power header

L

12V power header for POE module of Mini PCIe

M

12V power header for POE module of Mini PCIe

N

2nd SATA Signal Header

O

2nd SATA Power Header

P

FAN Header

Q

1ST SATA Connector

R

Coin Battery Connector

S

M.2 KEY M

T

PCIE X16

U

Clear CMOS switch

V

Mini PCIe Slot 1

W

PCIE X1

X

3rd SATA Signal Header

Y

3rd SATA Power Header

DIP Switch Setting

  • Location #G

Loacation #G

Pin

Signal

UP

ATX mode

Down

AT mode

  • Location #F

Location #F

Switch setting

Mode

1

2

1-2 → COM 1

RI

ON

ON

5V

ON

OFF

12V

OFF

ON

Switch setting

Mode

3-4 → COM 2

RI

ON

ON

5V

ON

OFF

12V

OFF

ON

Internal Connector Pin Definition

Location #Q - 1^st^ SATA Connector

Location #Q

Pin

Signal Name

P1

VCC3

P2

VCC3

P3

VCC3

P4

GND

P5

GND

P6

GND

P7

VCC

P8

VCC

P9

VCC

P10

GND

P11

RES

P12

GND

P13

+12V

P14

+12V

P15

+12V

S1

GND

S2

SATAHDR_TXP0_C

S3

SATAHDR_TXN0_C

S4

GND

S5

SATAHDR_RXN0_C

S6

SATAHDR_RXP0_C

S7

GND

Location #O/#Y - 2^nd^ and 3^rd^ SATA Power Header

Location #O/#Y

Pin

Signal Name

1

VCC3

2

GND

3

VCC

4

VCC

5

GND

6

+12V

7

+12V

Location #N/#X - 2^nd^ and 3^rd^ SATA Signal Header

Location #N/#X

Pin

Signal Name

Description

1

GND

Ground

2

SATAHDR_TXP_C

SATA DATA Transmit(positive)

3

SATAHDR_TXN_C

SATA DATA Transmit(negative)

4

GND

Ground

5

SATAHDR_RXN_C

SATA DATA Receive(negative)

6

SATAHDR_RXP_C

SATA DATA Receive(positive)

7

GND

Ground

8

G1

GND

9

G2

GND

Location #P – Fan Header

Location #P

Pin

Signal

1

Ground

2

+12V

3

CPU_FAN_TACH

4

CPU_FAN_CTRL

Location #H – M.2 Key E Slot

Location #H

Location #S – M.2 Key M Slot

Location #S

Location #L/#M – 12V Power Header for PoE Xpansion

Location #L/#M

Pin

Signal

1

Ground

2

+12V

3

+12V

4

GND

Location #J/#K – 5V Power Header for Reservation

Location #J/#K

Pin

Signal

1

+5V

2

Ground

External Connector Pin Definition

3-pin terminal block for DC Input

3-pin

Pin

Signal

1

DC IN +9~48VIN

2

Ignition (IGN)

3

GND

4-pin Terminal Block for PWM Fan

4-pin

Pin

Signal

1

Ground

2

+12V

3

System_FAN_TACH

4

SYSTEM_FAN_CTRL

2-pin Terminal Block for Remote Power ON/OFF and Reset

2-pin

Pin

Signal

1

Ground

2

EXT Reset

3

Ground

4

EXT_PWRBT_ON/OFF

COM#1 / COM#2

COM

Expansion Module COM/DIO

This Module consists of two parts, one is Serial COM, and the other is Digital IO function. Please see the guideline about how to set up this Module correctly.

COM Port Setting

a. Location

It has total 4 x COM port. These COM ports can be set to be RS232/RS485/RS422 or powered RS232. The position is as follows (A/B/C/D).

Location

b. Dip Switch Function

Dip Switch Function

(1) COM ID selection switch

Set A-B; COM ID is determined by UART controller (default). Set B-C; COM ID is determined by EEPROM.

(2) Powered COM enable switch

Powered COM enable switch

(3) Powered COM power source selection switch

Powered COM power source selection switch

(4) COM Mode setting switch

COM Mode setting switch

Digital IO Port

It has total 8-bit GPIO, the position is as follows.

Digital IO Port

Expansion Module LAN

This Module is a Giga LAN module, which supports four M12 type interfaces.

M12 Code A LAN Module Pin definitions

M12 Code

Expansion Module IGN

This Module can detect vehicle ignition status and control the on/off delay time setting. This document is used to guide how to set up this power ignition module correctly.

a. Location IGN Location

b. Function

  • Emergency reset button This button is for engineering use only. The host will be reset when this button is pressed.

  • Input power selection switch Common car power supplies are DC 12V or 24V. Please set it according to your environment.

c. Delay Power On/Off Setting Switch This feature detects the ignition signal status and allows users to control the on/off delay time setting through DIP switch.

Delay Power Switch