Topcon Wachendorff OPUS A8 ECO, Operating Manual

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Technical Documentation
Page 18 of 26
Main connector pinout (in full option)
pin no. assignment description
1 V
CC
supply v; terminal 30
2 Ignition Input ignition input; terminal 15
3 GND supply voltage - ;terminal 31
4 CarGND car ground
5 AUDIO_L Audio left
6 AUDIO_R Audio rigth
7 AUDIO_GND Audio GND
8 CAN1H CAN bus 1 high signal
9 CAN1L CAN bus 1 low signal
10 CAN2H CAN bus 2 high signal
11 CAN2L CAN bus 2 low signal
12 USB_V
CC
full speed USB, + 5 V DC
13 USB_GND full speed USB, 0 V
14 USB_D- full speed USB, data line (-)
15 USB_ D+ full speed USB, data line (+)
16 RS232: RxD RS232: RxD
17 RS232: TxD RS232: TxD
18 RS232: GND RS232: GND
19 A/DI3 analog/digital input 3
20 A/DI1 analog/digital input 1, full frequency
21 A/DI2 analog/digital input 2
22 A/DI4 or WoI analog/digital input 4 or wake up over input
23 SERV_EN
service enable; to be connected while power-on for
updating
24 DO3 digital output 3
25 DO1 digital output 1
26 DO2 digital output 2
Please observe the following guidelines for set-up:

Power supply lines should only be passed in pairs as close together as
possible.

Sensitive signal lines should be shielded to achieve highest possible damping,
and under this shielding they should be still be passed twisted.

Metal plug connections should be used for shielded lines.

Cable bundles should be distributed in accordance with their purpose (e.g.
HF, LG, and power supply); the groups thus formed should not be routed in
parallel to the extent possible, and they should be routed with clearance.
The OPUS A8 relies on a connection to an ECU that controls the functions and
features of the target vehicle/machine.