9

2.3 ALARM In/Out

ALARM1 IN ALARM4 INALARM2 IN ALARM3 INALARM OUTRECORD IN GROUNDDISK FULLALARM RESET
12345
6789

THIS FIGURE IS LOOKED FROM THE REAR VIEW
1. GND: Ground Contact.
2. AL ARM OUT (OU TPUT): This is a com mon alarm output trigger. Connect this to external
devices such as buzzers or lights. Switches Low (GND) (
5V
0V(Active) )
3. DISK FULL (OUTPUT): This is a disk full output trigger. Connect this to external devices such
as buzzers or lights. Switches Low (GND) (
5V
0V(Active) )
4. ALARM RESET (INPUT): This pin connects to an alarm-clear device for clearing an alarm. Use
a Normally Open switch to GND. (
5V
0V(Active) )
5. RECORD IN (INPUT): This pin connects to a record trigger device for starting a recor d.
Negative Trigger. (
5V
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 operation.
7. ALARM3 IN (INPUT): same as the above, for CH 3
8. ALARM 2 IN (INPU T): same as the above, for CH 2
9. ALARM1 IN (INPUT): same as the above, for CH 1