Vivotek MD9560-DH, Руководство пользователя

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VIVOTEK
24 - User's Manual
1. The DO+ pin provides a 5V output, and the max. load is 50mA.
2. The max. voltage for DO- pins is 30VDC (External power).
In order to control AC devices, the following diagram can be taken into consideration.
This diagram uses a relay to control the ON/OFF condition of the AC device.
3. An external relay can be triggered by using the 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.
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
DI/DO Diagram