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RS232C CONTROL
COMMANDS AVAILABLE FROM THE QUAD
COMPRESSOR
ACK(0A)
Response when this unit receives a command.
NAK(0B)
Response if this unit did not receive the command.
ALARM(BF)
When there is an alarm, this command is sent as header. Then,
the alarm information is sent in a 1-byte transmission (see Table
3).
ALARM information (Table 3)
Bit
Bit state information
7
2-bit indication of the
01: External alarms
alarm type
6
10: Video loss alarms
11: Sensor alarms
5
Reserved
0
4
Reserved
0
3
4-bit indication of the
0111: CAMERA NO. 8
camera number
2
0110: CAMERA NO. 7
1
0101: CAMERA NO. 6
0
0100: CAMERA NO. 5
0011: CAMERA NO. 4
0010: CAMERA NO. 3
0001: CAMERA NO. 2
0000: CAMERA NO. 1
OTHER COMMANDS
ENTER(40)
When numeric commands are all sent, this command is used to
enter the transmitted value.
CLEAR(56)
To erase multiple byte commands.
30
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