Optional Modules and Peripheral Devices
Bosch Option Bus
The AMAX panel provides BOSCH option bus 1 and option bus 2 (only for AMAX 3000 BE and
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!
AMAX 2100 / 3000 provides 12 VDC power supply with a maximum of 500mA for option bus
1. AMAX 3000 BE / 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 2100 AMAX 3000 /
3000 BE
AMAX 4000
Keypads 4 8 16
DX2010 - 3 6
DX3010 1 2
DX4010 1
GPRS module:
B450 with B442 or B443, DX4020-
G
Up to 2 different GPRS modules, each GPRS module can
only be connected once. Exception: 2 B450 modules can
be connected.
IP module:
B426
2 (1 if one of the GPRS modules above is connected, 0 if
two of the GPRS modules above are connected)
RF receiver - 1
Table 4.1: Maximum number of modules
4
4.1
AMAX panel Optional Modules and Peripheral Devices | en 13
Bosch Sicherheitssysteme GmbH Installation Manual 2015.05 | 06 | F.01U.309.277
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