12
Maintenance and servicing
Technical specifications
74
V7.20160121
30302710-02-EN
2)
is compliant with TBC_Pwr in ISO 11783. When the terminal is switched on, this pin is under
voltage (supply voltage minus approx. 1.2V).
Pin assignment of port B
The pin assignment of port B is dependent on the hardware version of the terminal.
Terminals with hardware versions from 3.0.0
9-pin. D-Sub connector
Port B is a 9-pin D-Sub port.
The connector can be used for the following purposes depending on its assignment:
Purpose
Pins used
As second CAN interface
7, 9
As second serial interface
2, 3, 4, 5
As signal input for two digital and one analog
signal.
1, 5, 6, 8
Pin assignment of port B
Pin no.: Signal:
Pin no.: Signal
1
Wheel sensor
1
6
PTO
2
2
/RxD
7
CAN_H
3
/TxD
8
Working position sensor
3
or
Reverse signal for determining the
driving direction
4
Voltage supply for GPS receiver
4
9
CAN_L
5
GND
Legend:
1
) Digital input as per: ISO 11786:1995 chapter 5.2
2
) Digital input as per: ISO 11786:1995 chapter 5.3
3
) Digital input as per: ISO 11786:1995 chapter 5.5
4
) The pin is switched in parallel with pin 4 by port C. Total loading is 600mA.
12.5.3
