
www.pulsar.pl POE1648
7
5. In case of significant voltage drops on the receive
rs’ power cables resistance, it is possible to adjust the voltage
with the V
ADJ
potentiometer
(41÷56V DC).
6. Check the optical indication of the PSU status.
7. Close the cover after installing and checking the operation of the power supply.
3. Power supply operation indication.
The presence of voltage at the input of PoE modules is indicated by LEDs on the front panel.
4. Service and operation.
4.1. Overload or short-circuit of the power supply output.
In case of power supply overload, the output voltage is automatically disconnected, which is indicated by
turning off the corresponding LED. The voltage is restored automatically restored once the fault (overload) is
cleared.
4.2. Activation of the overload protection of the power supply unit
When the OVP system is activated, the output voltage is automatically cut off. Restart is possible after
disconnecting the PSU from the mains supply 230V for at least 20 seconds.
4.3. Maintenance.
All maintenance procedures can be performed after disconnecting the power supply from the power
network. The PSU does not require any specific maintenance; however, its interior should be cleaned with
compressed air if used in dusty conditions.