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APPENDIX #4 - RS232 Remote Protocol
The RS232 / Alarm input allows you to control the DVR system from your PC. In order to achieve this, you will require an RS232 COM
Port communication program installed on your PC. There are many of these software programs available on the internet, some of which
are free. Please contact the manufacturer SVC if you require this software, or visit www.strategicvista.com for more information.
Use an RS-232C cable to connect the DVR Combo to your computer.
The PC keyboard simulates the DVR keypad. For example, pressing "r" will make the DVR stop.
Note that the letters are case sensitive. Below is a list of corresponding keys, and their codes:
FUNCTION
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
QUAD
PIP
SEQ
MENU
PAN/TILT
POWER
AUDIO_SEL
ALRS
PIP_SUB
EVENT
RS232 controls can be executed through DOS. From windows you can get to the DOS
mode by clicking on Start, followed by Run. In the Open field, in the Run window, type in
the word "command" and click OK.
CODE
ASCII
0x31
1
0x32
2
0x33
3
0x34
4
0x4D
M
0x4E
N
0x4F
O
0x50
P
0x35
5
0x36
6
0x37
7
0x39
9
0x76
v
0x57
W
0x58
x
0x68
h
0x6D
m
0X6F
o
FUNCTION
CODE
ENTER
0x42
UP
0x43
DOWN
0x44
RIGHT
0x45
LEFT
0x46
CH1/5_FRZ
0x47
CH2/6_FRZ
0x48
CH3/7_FRZ
0x49
CH4/8_FRZ
0x4A
REC
0x6E
SEARCH
0x70
MODE
0x71
KEYLOCK
0x75
PLAY/PAUS
0x41
E
FF
0x73
REW
0x74
STOP
0x72
ASCII
B
C
D
E
F
G
H
I
J
n
p
q
u
A
s
t
r
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