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VIDEOPORTERO 2 HILOS | 2-WIRE VIDEO DOOR ENTRY SYSTEMS | VIDÉO-PORTIER 2 FILS
OVERVIEW OF THE INSTALLATION
1.- WIRING
For optimal performance and greater range, the use of the Alcad reference cable:
CAB-307 or CAB-357 is recommended.
Some of the cables supported by the 2-WIRE system are:
• 2-wire hose.
• UTP.
• Conventional 4+N installations (replacement).
• Multi-wire hose.
• Parallel cable.
Recommended cable cross sections: From 0.22mm2 to 1.5mm2. You will find tables
that relate the type of cable with the maximum distance and maximum number of
devices supported later in this manual.
Try to avoid:
• Unipolar electric cables.
• Drivers with different lengths or routes.
• Join wires to get a bigger cross section.
• Change the type of cable or cross section throughout the installation.
And remember that a cable with a larger section does not guarantee better perfor-
mance of the 2-WIRE system.
2.- MAXIMUM DISTANCES DEPENDING ON THE TYPE OF INSTALLATION
For distances, number of equipment or types of cables different from those shown
below, additional elements may be necessary, such as bus voltage regenerators or
signal amplifiers. Consult the manufacturer.
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