Installation Guide
7
External
power source
Relay
NO NC
+3.3V+3.3V
R
R
R
GND GND
GND
Switch
+3.3V
R
GND
Fuse/50mA
GND
Camera DI pins
DI+
DI-
DO+
DO-
Coordination with Cameras via the DI and DO Pins
IR LED ON/OFF control (Green & Yellow wires)
This mode means that illuminator On/Off control is triggered by camera or other alarm system. Users can decide using the appropriate dry/wet
contacts depending on wiring condition.
DI+: Green = TTL + voltage
DI-: Yellow = TTL – voltage (GND)
Light sensor status output (Purple & Blue wires)
This mode means that camera Day/Night mode switching
is coordinated with and is triggered by the illuminator's light
sensor via the DO(Digital output) connection (connected to
the camera's DI pins). Users can congure the camera
conguration to control the corresponding illuminator On/Off status.
DO+: Purple= Open drain output, 45V Max. (current must be under 100mA)
DO-: Bule = GND
Light sensor status output
1. Open = Day
2. Short = Night (lower than 300 lux for IR to turn ON)
Stand-alone illuminator mode
This mode means that the illuminator's On/Off control is triggered by its light sensor, in the case, the default wiring is connecting the green wire
with purple wire.
Some cameras have related settings that need the inter-connection with the illuminator. For example, some cameras come with an IR cut lter
that need to be turned off when entering night mode; or, automatically turn on the adjacent illuminator when entering night mode.
* Wet contact
Logic level 1: 4V~40 V = LED off
Logic level 0: 0.8V MAX = LED on
* Dry contact
Logic level 1 (Open) = LED off
Logic level 0 (Close to GND) = LED on