APPENDIX 5 RS485 PROTOCOL
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APPENDIX 5 RS485 PROTOCOL
Use PC keyboards to simulate DVR keypads.
Data: REMOTE PROTOCOL uses 8 bit data, 1 start bit, 1 stop bit.
FUNCTION
CODE
ASCII
FUNCTION
CODE
ASCII
KEY_MENU
0x4D M
KEY_SET_CHANNEL
0x6e n
KEY_ENTER 0x0D
ENTER
KEY_DWELL 0x65
e
KEY_PLUS 0x6b
k
KEY_CH1 0x31
1
KEY_MINUS 0x6d
m
KEY_CH2
0x32
2
KEY_UP 0x55
U
KEY_CH3
0x33
3
KEY_DOWN 0x4E
N
KEY_CH4
0x34
4
KEY_LEFT 0x4C
L
KEY_CH5 0x35
5
KEY_RIGHT 0x52
R
KEY_CH6
0x36
6
KEY_POWER 0x57
W
KEY_CH7
0x37
7
KEY_REC 0x72
r
KEY_CH8 0x38
8
KEY_PLAY 0x50
P
KEY_CH9 0x39
9
KEY_SLOW 0x53
S
KEY_CH10 0x41
A
KEY_ZOOM
0x5A z
KEY_CH11
0x42 B
KEY_KEY LOCK
0x4B
K
KEY_CH12
0x43
C
KEY_AUDIO 0x64
d
KEY_CH13 0x44
D
KEY_SEARCH 0x73
S
KEY_CH14
0x45
E
KEY_PTZ_MODE 0x70
p
KEY_CH15
0x46
F
KEY_PTZ_PRESET 0x71 q
KEY_CH16
0x47 G
KEY_PTZ_ZOOM_IN
0x69 i
KEY_EJECT_DVD 0x6a j
KEY_PTZ_ZOOM_OUT 0x66
f KEY_IRIS_NEAR
0x67
g
KEY_MODE 0x6f
o
KEY_IRIS_FAR
0x68
h
KEY_4 CUT
0x61
a
KEY_PTZ_LIGHT
0x6c
l
KEY_9 CUT
0x62
b
KEY_PTZ_WIPER
0x77
w
KEY_16 CUT
0x63
c