C2-260/inBio2-260 Access Control Panel
User Manual
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4
Equipment Communication
The background PC software can communicate with the system according to two protocols (TCP/IP and
RS485) for data exchange and remote management.
Access Control Networking Wires and Wiring
4.1
1.
The power supply is 12V DC converted from 220V or PoE.
2.
As an electronic lock has a large current, it generates a strong interference signal while functioning.
To reduce such an effect, 4-core wires (RVVP 4
×
0.75mm
2
, two for a power supply, and two for a
door sensor) are recommended.
3.
“RS485” interface uses 4-core communication shielded wires (RVVSP 4*0.5mm).
4.
Other control cables (like exit switches) are all made of 2-core wires (RVVSP 2
×
0.5mm
2
).
5.
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 above 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, the 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 the indoor distribution). Metal hoses are applicable to ceiling wiring,
but they must be secure and good-looking.
Shielding measures and shielding connection: If the electromagnetic interference in the wiring
environment is found substantial in the survey before construction, it is necessary to consider
the shielding protection of 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 includes 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. Noted 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. No
lightning conductor can serve as a ground wire and ensure there is no lightning current through
any ground wire when there is lightning. Metal wiring troughs and pipes must be connected
