Vivotek PT3122 - Manual (Page 7)

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Installation
Hardware Installation
Please verify that your product package contains all the
accessories listed in the foregoing Package Contents.
Depending on the user’s application, an Ethernet cable
may be needed. The Ethernet cable should meet the
specs of UTP Category 5 and not exceed 100 meters in
length.
Connect the power adapter jack to the Network
Camera before plugging in to the power socket. This will
reduce the risk of accidental electric shock.
Upon powering up, the device runs through a self-test procedure and the front LEDs
will blink between green and red a few times. If self-test passes, the LEDs will shut
off and the Network Camera will be on stand-by and ready for software installation.
If self-test fails the red LED will blink several times. Refer to Appendix A for
troubleshooting.
The Network Camera provides a general I/O terminal block with one digital input and
one relay switch for device control. Pin 1 and Pin 2 can be connected to an external
sensor device and the state of voltage can be monitored from the initial state 'LOW'.
The relay switches Pin 3 and Pin 4 can be used to turn on or off an external device.
Consult with the dealer of the peripherals for correct installation.
1 DI+ INPUT (Max. 50mA, 12VDC)
2 DI- INPUT (Initial state of DI is Low)
3 SW_COMMON OUTPUT (open from SW_OPEN at initial state)
4 SW_NOPEN OUTPUT (Max. 1A, 24VDC or 0.5A, 125VAC)