Hardware Installation

Pinout

The 68 pin main connector has the distribution of input/output channels as follows:

../_images/connector-HEW.LM.368.XLNP_v3.png

Connector HEW.LM.368.XLNP (mounted in CEX)

Warning

Check the pin number before connecting. The colour code is repeated 3 times due to the amount of pins. First section corresponds to pins 1-30, the second section to pins 31-60 and the third one to pins 61-68. Pin number increases following the black line of the pictures above: counterclockwise for the connector and clockwise for the plug.

Main Connector - HEX.LM.368.XLNP

PIN Nº

I/O

Color

Comments

1

Power supply 1

White

Power supply for the main system, redundant with Power supply 2

2

Power supply 2

Brown

Power supply for the main system, redundant with Power supply 1

3

GND

Green

Ground for supply

4

GND

Yellow

Ground for supply

5

CAN A (P)

Gray

CANbus interface. It supports data rates up to 1 Mbps

Twisted pair with a 120 \(\Omega\) Zo recommended

6

CAN A (N)

Pink

7

CAN GND

Blue

Ground for can busses

8

CAN B (P)

Red

CANbus interface. It supports data rates up to 1 Mbps

Twisted pair with a 120 \(\Omega\) Zo recommended

9

CAN B (N)

Black

10

OUT RS-485 (P)

Violet

Non-inverted output from RS-485 bus

11

OUT RS-485 (N)

Gray – Pink

Inverted output from RS-485 bus

12

IN RS-485 (N)

Red – Blue

Inverted input to RS-485 bus

13

IN RS-485 (P)

White – Green

Non-inverted input to RS-485 bus

14

RS-485 GND

Brown – Green

Ground for RS-485

15

RS-232 (A) TX

White – Yellow

RS-232 A Output

16

RS-232 (A) RX

Yellow – Brown

RS-232 A Input

17

GND

White – Gray

Ground for digital busses

18

RS-232 (B) TX

Gray – Brown

RS-232 B Output

19

RS-232 (B) RX

White – Pink

RS-232 B Input

20

I2C SCL

Pink – Brown

Clock line for I2C bus

21

I2C SDA

White – Blue

Data line for I2C bus

22

3.3V Output

Brown – Blue

3.3V-100 mA power supply

23

GND

White – Red

Ground for power supply

24

5V Output

Brown – Red

5V – 100 mA power supply

25

GND

White – Black

Ground for power supply

26

ATX0_N

Brown – Black

ARINC 429 inverted output Port 0

27

ATX0_P

Grey – Green

ARINC 429 non-inverted output Port 0

28

ARX0_P

Yellow – Green

ARINC 429 non-inverted input Port 0

29

ARX0_N

Pink – Green

ARINC 429 inverted input Port 0

30

ECAP 1

Yellow – Pink

Encoder quadrature input

31

ECAP 2

White

Encoder quadrature input

32

ECAP 3

Brown

Encoder quadrature input

33

ECAP 4

Green

Encoder quadrature input

34

PWM 1

Yellow

PWM/DIGITAL output /DIGITAL input signal (0-5V)

35

PWM 2

Gray

PWM/DIGITAL output /DIGITAL input signal (0-5V)

36

PWM 3

Pink

PWM/DIGITAL output /DIGITAL input signal (0-5V)

37

PWM 4

Blue

PWM/DIGITAL output /DIGITAL input signal (0-5V)

38

PWM 5

Red

PWM/DIGITAL output /DIGITAL input signal (0-5V)

39

PWM 6

Black

PWM/DIGITAL output /DIGITAL input signal (0-5V)

40

PWM 7

Violet

PWM/DIGITAL output /DIGITAL input signal (0-5V)

41

PWM 8

Gray – Pink

PWM/DIGITAL output /DIGITAL input signal (0-5V)

42

GND

Red – Blue

Ground for digital/analog signals

43

ANALOG (1) 3.3V

White – Green

Analog input 0-3.3 V

44

ANALOG (2) 3.3V

Brown – Green

Analog input 0-3.3 V

45

ANALOG (3) 5V

White – Yellow

Analog input 0-5 V

46

ANALOG (4) 5V

Yellow – Brown

Analog input 0-5 V

47

ANALOG (5) 12V

White – Gray

Analog input 0-12 V

48

ANALOG (6) 12V

Gray – Brown

Analog input 0-12 V

49

ANALOG (7) 36V

White – Pink

Analog input 0-36 V

50

ANALOG (8) 36V

Pink – Brown

Analog input 0-36 V

51

GND

White – Blue

Ground for digital/analog signals

52

ARX1_P

Brown – Blue

ARINC 429 non-inverted input Port 1

53

ARX1_N

White – Red

ARINC 429 inverted input Port 1

54

ARX2_P

Brown – Red

ARINC 429 non-inverted input Port 2

55

ARX2_N

White – Black

ARINC 429 inverted input Port 2

56

ARX3_P

Brown – Black

ARINC 429 non-inverted input Port 3

57

ARX3_N

Gray – Green

ARINC 429 inverted input Port 3

58

ARX4_P

Yellow – Green

ARINC 429 non-inverted input Port 4

59

ARX4_N

Pink – Green

ARINC 429 inverted input Port 4

60

GPIO9

Yellow – Pink

DIGITAL output /DIGITAL input signal (0-3.3V)

61

GPIO10

White

DIGITAL output /DIGITAL input signal (0-3.3V)

62

GPIO11

Brown

DIGITAL output /DIGITAL input signal (0-3.3V)

63

GPIO12

Green

DIGITAL output /DIGITAL input signal (0-3.3V)

64

GPIO13

Yellow

DIGITAL output /DIGITAL input signal (0-3.3V)

65

GPIO14

Grey

DIGITAL output /DIGITAL input signal (0-3.3V)

66

GPIO15

Pink

DIGITAL output /DIGITAL input signal (0-3.3V)

67

GPIO16

Blue

DIGITAL output /DIGITAL input signal (0-3.3V)

68

GPIO17

Red

DIGITAL output /DIGITAL input signal (0-3.3V)

CAN Assembly

As described in Warnings section, CEX itself does not allow the connection of multiple CEX or other CAN Bus devices to the same line. It is therefore possible to use a Veronte autopilot for this purpose. Considering Veronte Autopilot includes one entrance resistance of 120 \(\Omega\), a second resistance needs to be placed at the end of the line (again 120 \(\Omega\)). This resistance may be placed on the cable or on another PCB.

../_images/CAN-assembly-2.png

CAN assembly diagram example