Muller Elektronik TRACK Guide II - Pin assignment of port A

12
Maintenance and servicing
Technical specifications
76 30302710-02-EN V7.20141016
Parameter
Value
devices.
Display VGA TFT color display; display size (diagonal): 14.5 cm ; resolution:
640 x 480 pixels
Processor
32-bit ARM920T up to 400 MHz
RAM 64 MB SDRAM
Boot USB
128 MB
Internal clock Buffered by capacitor, keeps the time for 2 weeks without an external
power supply.
Keyboard
17 keys plus rotary knob.
Outputs 2 x CAN
1 x USB 1.1
2 x RS232. Second RS232 with restricted functionality.
2 x M12 for two analog cameras (optional)
Pin assignment of port A
Port A is a 9-pin D-sub port of the ISO agricultural machinery interface (CAN).
Pin no.:
Signal:
Pin no.:
Signal
1 CAN_L 6 - Vin
1
(GND)
2
CAN_L
1
7
CAN_H
1
3
CAN_GND
1
8
CAN_EN_out
2
4 CAN_H 9 + Vin
1
5
CAN_EN_in
Legend:
+Vin = voltage supply (+)
–Vin = ground (-)
1)
- Signals marked with
1
correspond to the CiA assignment (CAN in automation).
Both signals CAN_L and CAN_L
1
and/or CAN_H and CAN_H
1
are linked internally and used to loop
the CAN bus through.
Assigning CAN_EN_in to the supply potential (= +Vin) enables the terminal to be switched on.
The signals '-Vin' and 'CAN_GND' are directly linked with both connectors, therefore it is crucial to
avoid differences in potential between the pins of these two connectors.
12.5.2