4. System Networking
4. System Networking
4.1 System Wiring and Wires Requirements
1. RS485 communication wires are made of internationally accepted shielded
twisted pairs, which provide effective protection and shield of interference.
2. The power supply is 12V DC converted from 220V.
3. The Wiegand readers use 6-core communication shielded wires (RVVP 6×0.5mm)
(usually there are 6, 8, and 10-core types available for users to select) to reduce
interference during transmission.
4. As an electronic lock has a big current, it generates strong interference signal
during an action. To reduce the effect of an electronic lock during an action on other
elements, 4-core wires (RVV 4×0.75mm
2
, two for a power supply and two for door
sensor) are recommended.
5. Other control cables (like exit buttons) are all made of 2-core wires (RVV
2×0.5mm
2
).
6. Notes for wiring:
Signal wires (like network cables and RS-485 wires) can neither run in parallel
with nor share one casing pipe with large-power electric wires (like electronic
lock wires and power cables). If parallel wiring is unavoidable for
environmental reasons, the distance must be over 50cm.
Try to avoid using any wire with a connector during wiring. When a connector
is indispensable, it must be crimped or welded. No mechanical force can be
applied to the joint or branch of conductors.
In a building, distribution lines must be installed horizontally or vertically.
They should be protected in casing pipes (like plastic or iron water pipes, to be
selected according to the technical requirements of indoor distribution). Metal
hoses are applicable to ceiling wiring, but must be secure and good-looking.
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