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APPENDIX 1. -- RS-232 Protocol
1.Setup
1.1
Use Null Modem cable (The standard RS-232 9 Pin Cable with Pin 2 and Pin 3 exchanged, see
pin configuration chart below for details) to connect the COM 1 on the rear panel of the DVR to a PC.
DVR
PC
1
2
3
4
5
6
7
8
9
RS-232
1
2
3
4
5
6
7
8
9
RS-232
RX
TX
GND
RTS
CTS
RX
TX
GND
RTS
CTS
1.2
Set the
RS-232
option to
MASTER
in the
COMMUNICATION
page of the setup menu.
1.3
Set communication parameters: 9600 bps, No Parity, 8 Data Bits, 1 Stop Bit.
2. Communication Protocol:
2.0 General Command Format
<Lead Code = 0x41>, <Main category >, <Second category >, {<Number of parameters>,
<Parameter 1>, <Parameter 2> ..,} <End Code= 0x4f>
Lead Code
= 0x41
Main Category = 0x01
Keys and Signals
= 0x02 Command
Second Category = 0x01 Handshake
= 0x02 Request Time/Set Time
=
0x05
Request
System
State
End Code= 0x4f
Содержание IV-100CD
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