Grounding For Bus Interfaces - Bosch APC-AMC2-4R4CF Installation Manual

Access Modular Controller 2
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.
Jumper B connects the internal ground of the AMC2-4W to the RS-485 ground of the slave
interface. Only set jumper B (B2) if the AMC2-4W powers all other peripheral devices directly
connected to it.
The jumper setting A1 shows the factory settings.
Jumper connects the internal ground of the AMC2-4R4 to the ground of the RS-485 slave
interface. Set Jumper A2 only at the first AMC2-4R4 of a party line Overview - Power supply/
consumption, page 49.
4.6.3

Grounding for Bus Interfaces

Figure 4.19: Location of ground jumper bus interfaces
Figure 4.20: 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 V.B. Installation manual
Installing | en 45
2020-01 | V02 |