Wire Connection Layout; Warnings - Key-Disp KD21C User Manual

Connection layout
Connector wire sequence
Connector to controller
Wire sequence
■Some displays have wire connection with water-proof connectors, users can not
see the color of lead wires in the harness.

Warnings:

1. Use the display with caution. Don't attempt to release or link the connector when battery is power
on.
2. Try to avoid hitting the display.
3. Don't modify system parameters to avoid parameter disorder.
`
4. Make the display repaired when error code appears.
■
This manual instruction is a universal version for DISPLAY KD21C. Some versions of this display
may be different from specification to specification as to the software. Please always refer to an
actual version.
display end
Wire sequence table
1
2
3
4
5
connection wire end to display end
Color
Red(VCC)
Blue(K)
Black(GND)
Green(RX)
Yellow(TX)
20
Function
+
Lock
-
RX
TX