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

6

alarm type

10: Video loss alarms

 

 

 

11: Sensor alarms

5

Reserved

0

4

Reserved

0

3

4-bit indication of the

0011: CAMERA NO. 4

2

camera number

0010: CAMERA NO. 3

 

1

 

0001: CAMERA NO. 2

0

 

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

English