Grounding For Extension Interface; Grounding For Bus Interfaces - Bosch Access Modular Controller 2 Manual

Access Modular Controller 2
Settings for jumper JP2:
If the ground conductor and the shield on the host are not connected and:
–
–
–
4.6.2

Grounding for extension interface

B 1:
B 2:
Figure 4.6: Location of ground jumper bottom side
Jumper B connects the internal ground of the controller to the RS-485 ground of the slave
interface. Only set jumper B (B2) if the controller 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) connect the internal ground of
the controller to the RS-485 ground of the bus.
Only set jumper C and D (C2 or D2) if the controller powers all other peripheral devices which
are directly connected.
Bosch Security Systems B.V.
no party line exists, the jumper JP2 is set (= A3)
a party line exists and signal ground is connected, the jumper JP2 is set at the first device
only (= A3)
a party line exists and signal ground is not connected, the jumper JP2 is set at all devices
(= A3)
B1 Delivery status
C
D
C1, D1 Delivery status
B
C 1:
C 2:
D 1:
D 2:
Guide d'installation
Installing | en 19
2022-11 | V04 |