3
!
Assembly, installation, and commissioning must only be carried out by a qualified
electrician!
For work on systems with 230 V AC mains current the safety requirements of DIN VDE
0100 must be observed.
When installing DCM BUS systems the general safety rules for telecommunication sys-
tems in accordance with VDE 0800 must be observed:
•
separate cabling for high and low voltage lines
•
minimum distance of 10 cm for joint cabling arrangements,
•
use of separators between high and low voltage lines in joint cable ducts,
•
use of standard telecommunication cables, e. g. J-Y (St) Y with 0.8 mm² cross section
•
existing cables (modernisation) with different cross sections may be used whilst taking
account of the loop resistance.
!
Suitable lightning prediction must ensure that a voltage of 32 V DC will not be
exceeded at the DCM BUS wires a and b.
