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2.2.2 Connect with Multiplexer
Alarm Input
GND
Video Camera
....
16
....
VCR OUT
DVR
VCR IN
Main Monitor
21
RS232
Alarm
Sensor
PC
2.3 RS232 Remote Protocol
You can use the PC key board to simulate DVR key pad.
DATA: REMOTE PROTOCOL using 8 bit data、1 start bit、1stop bit
ACT C0H ID FUNCTION STOP
(FFH) (7FH)
FUNCTION CODE ASCII FUNCTION CODE ASCII
MENU 0x4D M DOWN / STOP 0x4E N
ENTER 0x0D ENTER LEFT / F.F. 0x4C L
SEARCH 0x48 H RIGHT / F.R. 0x52 R
SLOW 0x53 S PLAY 0x50 P
UP / PAUSE 0x55 U RECORD 0x72 r
3. Configuration
7