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D-Link DCS-2210L/UPA User Manual
Appendix A: DI/DO Specifications
DI/DO Specifications
Pin 1
Pin 4
Pin 3
Pin 2
PIN
FUNCTION
NOTE
1
Digital Out (DO)
Uses an open-drain NFET transistor with the source connected to GND in camera. If used
with an external relay, a diode must be connected in parallel with the load for protection
against voltage transients. Max loading is 100 mA.
2
Digital In (DI)
A switch from DI to DC 5 V, activated by setting NO. or NC.
3
DC5V OUTPUT
DC 5 V Output / Max. 100 mA
4
GND
GND
Internal 5V Power
External 3~12V Power
DO
DI
5V
DND
N.C
/
N.O
100 mA
ALARM
Reed switch
Diode
DC Power 5V
R
DO
DI
5V
DND
N.C
/
N.O
ALARM
Reed switch
Diode
DC Power 5V
R
DC Power 3V~12V
100 mA