VIVOTEK
User's Manual - 7
1. If you forget the root (administrator) password for the camera, you can restore the camera
defaults by pressing the reset button for longer than 5 seconds.
2. If DHCP is enabled in your network, and the camera cannot be accessed, run the IW2 utility
to search the network. If the camera has been configured with a fixed IP that does not comply
with your local network, you may see its default IP 169.254.x.x. If you still cannot find the
camera, you can restore the camera to its factory defaults. The factory default is DHCP client.
3. If you change your network parameters, e.g., added a camera via a connection to a LAN
card, re-start the IW2 utility.
Tips:
NOTE:
1. This equipment is only to be connected to PoE networks without routing to outside plants.
2. For PoE input, use only UL listed I.T.E. with PoE output.
DI/DO Diagram
DI-
DO+
DI+
DO-
Switch
External Device
External DC power
Dry contact with external DC power source to supply a relay. Dry contact is the safest connec
ti
on
to protect devices.
NC
NO
Relay
Photo
Coupler
DC
DC 0V
DC 0V
External AC power
with Protected Earth
AC
PE
PE
1. The DO+ pin provides 12V output voltage, and the max. load is 50mA.
2. The max. voltage for DO- pins is 80VDC (External power).
In order to control AC devices, the above diagram can be taken in consideration. The diagram
uses a relay to control the ON/OFF condition of the AC device.
3. An external relay can be triggered by using DO+ or by an external power source, depending
on the type of relay you use.
4. In case of using an individual relay (instead of using a relay module), for protection against
voltage or current spikes, a transient voltage suppression diode must be connected in parallel
with the inductive load.
