Grounding For Extension Interface; Grounding For Bus Interfaces - Bosch AMC2 Installation Manual

AMC2 Modular Controller
If the ground conductor and the shield on the host are not connected and ...
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Notice!
If the AMC2-4R4 is set to RS-232 mode, set jumper JP1 (= A2).
4.6.2

Grounding for Extension Interface

Figure 4.6: Location of ground jumper bottom side
Jumper B connects the internal ground of the AMC2-4R4 to the RS-485 ground of the slave
interface. Only set jumper B (B2) if the AMC2-4R4 powers all other peripheral devices directly
connected to it.
4.6.3

Grounding for Bus Interfaces

Figure 4.7: Location of ground jumper bus interfaces
Jumper C (for the second bus) and jumper D (for the first bus) connects the internal ground
of the AMC2 to the RS-485 ground of the bus. Only set jumper C and D (C2 or D2) if the AMC2
powers all other peripheral devices which are directly connected to the AMC2.
Bosch Access Systems GmbH
no party line exists, the jumper 2 is set (= A3)
a party line exists and signal ground is connected, the jumper 2 is set at the first device,
only (= A3)
a party line exists and signal ground is not connected, the jumper 2 is set at all devices (=
A3)
Installation Manual
Installing | en 19
2018-02 | AMC2-4R4 |