Active Solid-State
The third and least common method is the emitter follower where the camera output supplies the current used for detection. In this configuration is shown
in Figure 7.
Striped Wire +
I/O Detect Cable
Camera
Solid State
Sourcing Relay
+ Volts
Plain Wire -
Figure 7: Active Solid-State Relay I/O Detect Connection
Output Relay Configuration and Connections
Output Relay Configuration
The relay output configurations vary based on the manufactures design. Because of these variations, the IP Reset I/O Detect input needs to operate in one of three
ways. Refer to your camera user manual for more information regarding the output relay configuration of your camera.
Striped Wire
I/O Detect Cable
Camera
Dry Contact
Passive Solid-State
The second method is similar, requiring the IP Reset to supply current to an open collector output transistor. This configuration is shown in Figure 6.
Striped Wire
I/O Detect Cable
Camera Open
Collector Relay
Figure 6.
Passive Solid-State Relay I/O Detect Connection
Figure 5:
Dry Contact Relay I/O Detect Connection
Dry Contact
The first and most common method requires the IP Reset to supply current to the dry contacts of a relay. This configuration is shown in Figure 5.
