48
EL250RT
9 CABLES
AND
WIRING
The wiring must be performed using two distinct cables.
The first (3x1.5 mm² electrical cable) supplies 230Vac to the transformer.
The second (minimum 8x0.22 mm² shielded cable) is for the transmission of alarm and tamper signals, as well as for
signalling abnormal conditions (fog, masking) and synchronization between the two columns.
Note: The shielding on this cable must be connected to the 13.8 Vdc negative in all the columns.
The size of the cables depends on the consumption of the columns and cable resistance in relation to the distances involved.
230Vac cable (column power supply)
Synchroni signal cable