EC16 Elevator Control Panel & DEX16 Elevator Floor Extension Board User Manual
P a g e | 41 Copyright©2023 ZKTECO CO., LTD. All rights reserved.
6 Communication Connection
The backend PC software is able to communicate with the system via TCP/IP for data exchange and
remote management. Communication lines are as far away from high-voltage power lines as possible,
and should not be wired in parallel with power lines, let alone bundled together.
Access Control Networking Wires and Wiring
1. The power supply is 12V DC converted from 220V or POE.
2. The Wiegand readers use 6-core communication shielded wires (RVVSP 6×0.5mm) (usually there are
different types of wires available, namely, 6-core, 8-core, and 10-core for users to select according to
the ports) to reduce interference during transmission.
3. As an electronic lock produces a big current, it generates strong interference signals during an action.
To reduce the effect of an electronic lock during an action on other elements, 4-core wires (RVVP
4×0.75mm
2
, two for a power supply and two for a door sensor) are recommended.
4. “EXT RS485” interface use 4-core communication shielded wires (RVVSP 4*0.5mm).
5. Other control cables like exit switches are all made of 2-core wires (RVVSP 2×0.5mm
2
).
6. Notes for wiring:
Signal wires (like network cables) 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 conductor with a connector during distribution. 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.
Shielding measures and shielding connection: If the electromagnetic interference in the wring
environment is found strong in the survey before construction, it is necessary to consider shielding
protection for data cables when designing a construction scheme. Overall shielding protection is
required if there is a large radioactive interference source or wiring has to be parallel with a large-
current power supply on the construction site. Generally, shielding measures include: keeping a
maximum distance from any interference source, and using metal wiring troughs or galvanized
metal water pipes to ensure reliable grounding of the connection between the shielding layers of
data cables and the metal troughs or pipes. Note that a shielding enclosure can have a shielding
effect only when it is grounded reliably.
Ground wire connection method: Reliable large-diameter ground wires in compliance with
applicable national standards are needed on the wiring site and should be connected in a tree form
to avoid DC loop. These ground wires must be kept far away from lightning fields. To ensure that
there is no lightning current through any ground wire when there is lightning, no lightning
conductors can be used. Metal wiring troughs and pipes must be connected continuously and
reliably and linked to ground wires through large-diameter wires. The impedance of this section of
wire cannot exceed 2ohm. The shielding layer also must be connected reliably and grounded at one
end to guarantee uniform current direction. The ground wire of the shielding layer must be
connected through a wire with large-diameter (not smaller than 2.5mm
2
).
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