I have a Bosch Solution 880 burglar alarm. The outdoor unit has reported a fault in the external siren. It is one of those old metal ones. I purchaserd a new polycarbonate SS-C1, but the wires are totally different. Can any one let me know how to rewire the new unit.
The old unit has incoming wires red blue white and black. There are two tamper switches in the unit, but the new one only has one. The Bosch reports faults showing siren, light etc.
Photos of the old and new unit wiring configuration are attached.