Appro Technology Inc NVR-2028 用户手册
10
2.3
ALARM
In/Out
ALARM OUT
RECORD IN
GROUND
DISK FULL
NO CONNECTION
NO CONNECTION
NO CONNECTION
NO CONNECTION
NO CONNECTION
1
2
3
4
5
6
7
8
9
THE 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. (
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. NO CONNECTION
5. RECORD IN (INPUT): This pin connects to a record trigger device for starting a record.
(
5V
0V(Active)
)
6. NO CONNECTION
7. NO CONNECTION
8. NO CONNECTION
9. NO CONNECTION