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2.3 ALARM In/Out
ALARM IN
ALARM OUT
RECORD IN GROUND
DISK FULL
ALARM RESET
NO CONNECTION NO CONNECTION
SWITCH OUT
12345
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*THIS FIGURE IS LOOKED FROM THE REAR
1. GND: Ground Contact.
2. ALARM OUT (OUTPUT): This is an alarm output trigger. Connect this to external devices such
as buzzers or lights. (
5V
0V(Active)
)
3. DISK FULL (OUTPUT): This is a disk full output trigger. Connect this to external devices such
as buzzers or lights. (
5V
0V(Active)
)
4. ALARM RESET (INPUT): This pin connects to an alarm-clear device for clearing an alarm.
(
5V
0V(Active)
)
5. RECORD IN (INPUT): This pin connects to a record trigger device for starting a record.
(
5V
0V(Active)
)
6. SWITCH OUT (OUTPUT): This pin, sending out timing signals (falling / negative) to a
multiplexer, connects to a multiplexer’s trigger terminal so the multiplexer can switch to use the
same recording speed as the DVR.
7. NO CONNECTION
8. NO CONNECTION
9. ALARM IN (INPUT): This is an alarm input which can be programmed in the menu system to
Normally Open or Normally Closed. (
5V
0V(Active)
)