18 en | Installation Extension board with 16-input 16-output
2024-01 | V02 |
Installation manual
Bosch Security Systems B.V.
4.7.2 Power supply via RS-485 interface
The power can also be supplied by the controller. In this case, the supply voltage is also
connected (pin 1-2) in addition to the data lines (pin 3 - 6).
Make sure that only one of the power supplies is connected.
Figure4.7: Interface for internal power supply
4.7.3 Overview - Power supply/consumption
Figure4.8: Example configurations
Example Used components Output
power
Own Usage available Constant
load
1 PSU + controller 60VA 5VA 55VA 25VA
2 PSU + controller +
extension
60VA 2 x 5VA 50VA 20VA
using further extensions the values decrease
PSU + controller +
2 x extension
60VA 3 x 5VA 45VA 15VA
PSU + controller + 60VA 4 x 5VA 40VA 10VA