17
DIP Switch Setting
Introduction
RS485 Address
1. Number 1-6 are reserved to set the device number for RS485
communication. The code is binary, and the numbering starts from left to
right. When the switch is set to ON position, it indicates 1 (on); when the
switch is set downwards, it indicates 0 (off). For example, to set a device
number 39=1+2+4+32, which corresponds to the binary code 111001, put
number 1, 2, 3, and 6 to ON position, as illustrated below.
2. For more details, please check the table at the end of this document
Restore factory setting
1. If you forget the C3 IP address or the device does not work
normally, you can use the number 7 terminal to restore C3-200 to
factory default settings. The parameters which gets reset are
device IP address, communication password ,gateway ,subnet mask.
2. The switch is OFF by default. When it is moved upwards and
downwards for three times within 10 seconds and finally returned
to OFF position, the factory settings will be restored after the
access control panel is restarted.
1 times
2 times
3 times
OFF
Terminal Resistance
1. Number 8 is for setting the RS485 termination resistance. Putting the
switch to ON position is equivalent to parallel connection of a 120ohm
termination resistance between 485+ and 485-
2. For more information please read RS485 connection - important notes
120ohm
