C2-260/inBio2-260 Access Control Panel
User Manual
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continuously and reliably and linked to ground wires through large-diameter cables. The
impedance of this section of wire cannot exceed 2 ohms. Also, the shielding layer must be
connected reliably and grounded at one end to guarantee a uniform current direction. The
ground wire of the shielding layer must be connected through a large-diameter wire (not less
than 2.5mm
2
).
TCP/IP Communication 4.2
The Ethernet 10/100Base-T Crossover Cable, a type of crossover network cable, is mainly used for
cascading hubs and switches or used to connect two Ethernet endpoints directly (without a hub). Both
10Base-T and 100Base-T are supported.
TCP/IP Communication System Networking
In Access software: Click Device > Search Device to search for access controllers in the network, and
directly add from the search result.
RS485 Communication 4.3
1. Internationally accepted RVVSP (shielded twisted pair) wires should be used for communication to
avoid interference effectively.
2. RS485 communication wires should be connected using a bus cascade connection instead of in a
star form, to achieve a better shielding effect by reducing the signal reflection during
communications.
3. Considering the stability of communication, it is recommended that the length of the RS485 bus
must be less than 600m.
4. Up to 16 device numbers can be set because the rotary DIP switch on the control panel has 16 bits.
Therefore, a single RS485 bus can be connected to 16 access control panels at most.
5. To enhance the stability of communication when the bus is longer than 300m, connect the
provided 120-ohm terminal resistor between the 485A and 485B wires of the first and last control
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