VESDA by Xtralis
VESDA VLC-400 Product Guide
www.xtralis.com
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7.8
Connecting power and signal cabling
7.8.1
Power Supply
The VESDA VLC-400 requires a nominal 24VDC power supply capable of being isolated. It is recommended
that the power supply be compliant with EN54-4 or other fire standards as required by the regional authority.
Note:
The VESDA VLC-400 detector will not operate when the power supply is reversed.
Warning:
Do not operate when the DC supply voltage is outside the device operating voltage range of
18VDC to 30VDC. Damage may occur if more than 30VDC is applied.
7.8.2
Using cable glands
Run the wires through the conduit or cable clamps where necessary and into the VESDA VLC-400 enclosure.
Use Local Codes and Electrical Standards for cabling.
7.8.3
Using conduits
Terminate the conduits at the cable entry holes on the sides of the box using the appropriate conduit
connectors.
7.9
Connecting the Apollo Loop wires to the detector
termination card
Figure 7-3 shows the possible field wiring connections on the termination card. Connect the Apollo Loop wires
as shown in Figure 7-3.
Figure 7-3: Wire Connection Details for Loop Configuration
