Table of Contents
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7
RS232 Remote Control Protocol
The unit supports two different communication types:
•
Remote Front Panel Button Emulation
•
Remote Configuration and Status
7.1 Front Panel Button Emulation
Data Structure
Byte 1: 0xFF
Byte 2: 0x55
Byte 3: Front Panel Button Code
Description
Byte 1 and 2 are header bytes.
Byte 3 contains the code for a specific front
panel button.
The different buttons and their corresponding
codes are as follows.
No Button Pressed
Record
Play
Stop
Alarm
Freeze
Zoom
Sequence
Reserved
Camera 1
Camera 2
Camera 3
Camera 4
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Menu
Enter
Reserved
Reserved
Reserved
Monitor B
0150-0257A
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 - 40
41
42
43
44
45-49
50
46
Reserved
Left Arrow
Right Arrow
Up Arrow
Down Arrow
Reserved
Alarm and Sequence
*Alarm and Camera 1
*Alarm and Camera 2
*Alarm and Camera 3
*Alarm and Camera 4
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Search
Frame Reverse
Frame Forward
Play Reverse
Stop
Play Forward
Monitor A
2 Way Multiscreen
4 Way Multiscreen
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
*Must send a "No Button Pressed" command
immediately following any of these
commands.
51-63
64
65
66
67
68-74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92-110
111
112
113
114
115
116
130
131
132
133
134
135
136
137
138
Kalatel DVMRe-4L
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