Bosch AMC2 4W Installation Manual page 30

30 en | Installing
Setting jumper JP1 connects the internal ground of the AMC2
4W to the ground of the RS-485 host interface. If the ground
conductor of the RS-485 interface between the AMC2 4W mod-
ules is connected, set Jumper JP2 only at a single AMC2 4W.
The host system must not connect cable shield and protective
ground. If not using the ground conductor of the RS-485 host
interface, Jumper JP1 should be set at every AMC2 4W.
Setting jumper JP2 connects the internal ground of the AMC2
4W to the shield of the RS-485 host interface. Set Jumper JP2
only at the first AMC2 4W of a party line. The host system must
not connect cable shield and protective ground. If the AMC2 4W
is set to RS-232 mode, Jumper JP2 must be set.
Fig. 5.5 Location of ground jumper bottom side
Jumper B connects the internal ground of the AMC2 4W to the
RS-485 ground of the slave interface. Jumper B shall only be
set (B2) if the AMC2 4W powers all other peripheral devices
which are directly connected to the AMC2 4W.
F.01U.024.965 | V 0.1 | 2006.03
AMC2 4W | Installation manual
Bosch Sicherheitssysteme GmbH