Specifications

Power supply 

Operating voltage (24 V~, ⏊, )：

AC 24 V -15 / +20 % (SELV / PELV) or 
AC 24 V Class 2 (US) 
48…63 Hz 
Functional ground (US) Functional earth 

The terminal for the functional ground must be 
connected on the installation side with the building 
grounding system (PE).

 
Screw terminals for wire cross sections up to ：Max. 2.5 mm2 (14 AWG) 
Internal fusing：3.15 A irreversible / non-replaceable 
External supply line fusing (EU)：Non-renewable fuse max. 10 A slow-blow or  
circuit breaker max. 13 A Tripping characteristic B, C, D per EN 60898 or 
Power supply with current limitation of max. 10 A 

Power consumption (for transformer planning) 

Base load With M-Bus, with KNX 

12 VA / 0.5 A  
19 VA / 0.8 A 

Function data 

Hardware information 
Processor NXP i.MX8 DualX, 1 GHz 
Storage 1 GByte RAM 
8 GByte eMMC 

Data backup in the event of power failure： 
Energy reserve (Supercap) to support real-time clock (7 days). 
Energy reserve can be extended to min. 1 month using optional battery CR2032  
(Battery safety requirement and specification for CR2032 according to IEC 60086-4 or UL1642. 
Battery must be rated for ambient temperature 70 °C (158 °F)) 
Data available if stored to flash memory. Occurs every 5 minutes. 

Interfaces 

Ethernet interface 
Plug：2 x RJ45, shielded 
Interface type：10Base-T / 100Base-TX, IEEE 802.3 compatible 
Bit rate：10/100 Mbps, autosensing 
Protocol：BACnet on UDP/IP and HTTPS on TCP/IP 
Cabling (in-house cabling only), cable type：10 Mbps: Min. CAT3, shielded cable is recommended 
100 Mbps: Min. CAT5, shielded cable is recommended 
Cable length：Max. 100 m (330 ft) 

Screw terminals, plug-in 
Cu-wire or Cu-strand with wire end sleeve：1 x 0.6 mm ∅ to 2.5 mm2 (22 to 14 AWG) 
or 2 x 0.6 mm ∅ to 1.0 mm2 (22 to 18 AWG) 
Cu-strand without wire end sleeve：1 x 0.6 mm ∅ to 2.5 mm2 (22 to 14 AWG) 
or 2 x 0.6 mm ∅ to 1.5 mm2 (22 to 16 AWG)