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iSMA-B-AAC20 Hardware User Manual
www.ismacontrolli.com
DMP239en | 1st Issue rev. 0 | 02/2022
page 9 of 42
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Figure 8. AAC20 extended M-Bus version
iSMA-B-AAC20-D: basic hardware version, native protocols: Modbus, BACnet, display
port, 1-Wire, DALI, and
iSMA-B-AAC20-LCD-D: LCD display, native protocols: Modbus, BACnet, display port, 1-
Wire, DALI:
Figure 9. AAC20 extended DALI version
4.2 Power Supply
The iSMA-B-AAC20 controllers are designed to work with 24 V AC/DC power supply.