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AMC2 4W Installing | en 27
Bosch Security Systems Installation manual F.01U.024.965 | V.4 | 2006.09
Setting jumper JP1 connects the internal ground of the
AMC2 4W to the ground of the RS-485 host interface. Jumper
JP2 manages the PAG.
Settings jumper JP1:
If the ground conductor and the shield on the host are not con-
nected and ...
– no partyline exists, the jumper JP1 is set (= A2)
– a partyline exists, ...
– the jumper JP1 is set at the first device, only (= A2)
Settings jumper JP2:
If the ground conductor and the shield on the host are not con-
nected and ...
– no partyline exists, the jumper JP2 is set (= A3)
– a partyline exists and PAG is connected, ...
– the jumper JP2 is set at the first device, only (= A3)
– a partyline exists and PAG is not connected, ...
– the jumper JP2 is set at all devices (= A3)
i
NOTE!
Generally the following counts:
– If the devices have an own power supply, the shield will be
connected on one point, only.
The free end should be protected to avoid connections.
– If the device will be provided by an other one, the shield
have to connect on both sides.
WARNING!
Take care that there are no grounding loops.
i
NOTE!
If the AMC2 4W is set to RS-232 mode, Jumper JP1 (= A2) must
be set.