Optional Modules and Peripheral Devices
Bosch Option Bus
The AMAX panel provides BOSCH option bus 1 and option bus 2 (only for AMAX 4000) to
connect modules and devices. Each module can be connected to each bus.
A maximum of 14 modules (8 keypads) can be connected to each bus.
The total length of the cable for the connection of all keypads and expansion modules wired to
one option bus must not exceed 700m. Particular modules require limitation in cable distance,
e.g. the last keypad must be placed within 200m.
The AMAX panel tests the communication with the modules and transmits the communication
failure report in case of failure of communication.
Cable Details:
– R: AUX 12V +
– B: 12V –
– G: Data
– Y: Data
Notice!
The AMAX panel 2100/3000 provide 12 VDC power supply with a maximum of 500mA for
option bus 1. The AMAX panel 4000 provides a maximum of 900mA for each option bus 1 and
2. When the total current of the bus exceeds the limit, an external power supply is required.
Notice!
When a data bus address is changed, the module needs to be re-powered to enable the new
address.
The following overview displays the maximum number of modules that can be connected.
Module AMAX panel
2100
AMAX panel
3000
AMAX panel 4000
Keypads 4 8 16
DX2010 3 6
DX3010 1 2
B426 or DX4020 2 / 1 if DX4020G is used
B450 with B442 1
DX4020G 1
DX4010 1
RF receiver 1
Table 5.1: Maximum number of modules
5
5.1
AMAX 2100 / 3000 / 4000 Optional Modules and Peripheral Devices | en 13
Bosch Sicherheitsysteme GmbH Installation Guide 2014.11 | 02 | F.01U.267.112
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