Shenzhen Reader Technology Co., Ltd
4. Description of Interface Signal for MainBoard
4.1 Interface of Main Power Source CN1
No.
1
2
3
4
Symbols
Definitions
OGND 24V power ground (input)
+24V
24V power positive (input)
NC
No used
NC
No used
Caution
This control system employs single 24 power supply. For a certain margin, it is
suggested to select 24V/2A power. Besides, this system is compatible with 36V
power, that is to say, the 36V power of Motion driver can directly be connected to
this main power port of this system, but generally it is not suggested to do so.
4.2 Panel Power Interface CN0
No.
Symbols
Definitions
1
P+
5V power positive (output)（Only power for pannel）
2
P-
5V power ground (output)
CN0 only power for 320*240 TFT display, and can’t for other use. Mainboard
P+ connect to pannel P+，Mainboard P- connect to pannel P-。
Caution
4.3 Panel Signal-Cable Interface HDI
HDI is a normative DB15 interface, using the DB15 cable provided by factory to
connect the mainborad and the panel.
4.4 Reserved Interface HMI
HMI is a factory interface whose function is reserved to user.
4.5 Udisk Interface
Udisk interface is a USB-AM, by this interface, the mainboard can read/write all kinds
of U-discs.
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