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BNC04124
G
REEN POWER CCTV BNC
7
RED LED:
•
on – DC voltage at the output of the switch mode PSU
•
off – no DC voltage at the output of the switch mode PSU
RED LED:
•
on – fuse failure at one of the AUX1…AUX4 outputs
•
off – no failure
GREEN LED:
•
on – DC voltage at the AUX1…AUX4 output
•
off – no DC voltage at the AUX1…AUX4 output
Additionally, the PSU is fitted with LED lights inside the enclosure – see Figure 2 and 3:
- L
IN
green LED (Figure 2, component 1) indicates DC voltage at the BNC module input. During normal operation
(DC supply) the LED is permanently illuminated. No DC no DC voltage at the module input is indicated by turning
off the L
IN
LED.
- L
FPS
red LED (Figure 2, component 11 is not illuminated during normal operation (no failure). In case of activation
of the short circuit / overload protection at any output, the LED is permanently illuminated.
- L1 ÷ L4 green LEDs (Figure 2, component 5) indicate voltage at the individual outputs of the module (L1 for AUX
1 etc.). Activation of the short circuit / overload protection of a given circuit is indicated by turning off one of the Lx
LEDs.
3.2. 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.
Figure 5. Electrical diagram of the OC output.
- relay output. In case of failure, relay contacts are switched automatically.
Figure 6. Electrical diagram of the relay output
CAUTION! The arrangement of contacts at the figure 6 shows a potential-free status of the relay,
which is equivalent to a state with no voltage at any of the AUX1 ÷ AUX4 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).