Approach Tech DVR-3704T Manuel d'utilisateur télécharger pdf (Page 12)

2.3 ALARM In/Out

ALARM1 IN ALARM4 IN

ALARM2 IN ALARM3 IN

ALARM OUT

RECORD IN GROUND

DISK FULL

ALARM RESET

12345

6789

THE ABOVE FIGURE IS A REAR VIEW.

1. GND: Ground Contact.

2. ALARM OUT (OUTPUT): This is an alarm-output trigger. Connect this to external devices such as

buzzers or lights. (

0V(Active)

)

3. DISK FULL (OUTPUT): This is a disk-full output trigger. Connect this to external devices such as

buzzers or lights. (

0V(Active)

)

4. ALARM RESET (INPUT): This pin connects to an alarm-clear device for clearing an alarm.

(

0V(Active)

)

5. RECORD IN (INPUT): This pin connects to a record-triggering device for starting a record.

(

0V(Active)

)

6. ALARM4 IN (INPUT): This is an alarm input( for CH 4 )which can be programmed in the menu

system to Normally Open or Normally Closed. (

0V(Active)

)

7. ALARM3 IN (INPUT): same as the above, for CH 3

8. ALARM2 IN (INPUT): same as the above, for CH 2

9. ALARM1 IN (INPUT): same as the above, for CH 1

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Approach Tech DVR-3704T Manuel d'utilisateur Page 12