6 IM 1005-2
Environmental Conditions
• Operation IEC 721-3-3
• Temperature -40...+70 °C
• Restriction LCD -20…+60 °C
• Restriction Process-Bus -25….+70 °C
• Humidity < 90 % r.h (no condensation)
• Air pressure Min. 700 hPa, corresponding to max. 3,000 m above sea level
Technical data
Figures 2 and 3 provide the details for the remote user interface bus connections using 1) either KNX or RS-
485 cable for direct connection to a single unit using standard 8-wire twisted net cable, or 2) connection to
one or more units using twisted pair cable.
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