www.pulsar.pl POE164864
GREEN POWER CCTV PoE
9
3.1. Technical outputs.
The PSU has the following indication outputs:
FPS
– technical output of the PSU status
:
- OC type output indicating failure (short-circuit, overload). During normal operation, shorted to ground
– L
state (0V). In case of power loss, the FPS technical output is switched into hi-Z state (high impedance) at least
at one of the AUX outputs.
Fig. 6. Electrical diagram of the OC output.
- relay output. In case of failure, relay contacts are switched automatically.
Fig. 7. Electrical diagram of the relay output
CAUTION!
The arrangement of contacts at the figure 7 shows a potential-free status of the relay,
which is equivalent to a state with no v
oltage at any of the AUX1 ÷ AUX16 outputs.
TAMPER
– output indicating enclosure opening
:
-
volt free contact input indicating the status of the
power supply doors, PSU closed: contacts closed (NC), PSU open: contacts open (NO).
4. Service and operation.
4.1. Overload or short-circuit of the power supply output.
The AUX1÷ AUX16 outputs of the PSU are protected against short-circuit and overload by
melting fuse
inserts or PTC polymer fuses. If the PTC polymer fuses are used, disconnect the load from the power supply output
for approximately 1 minute to restore output voltage. (the time needed to cool down the PTC fuse). In case of
melting fuse activation, it should be replaced with a fuse of the same type and of the same rated current.
4.2. 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. In case of fuse replacement, use only compatible replacement parts.
