Panasonic WV-CW480S Operating Instructions Manual page 23

Cautions:
• Be sure to connect the GND (grounding)
lead of the camera and grounding termi-
nal of the power supply when using a
24 V AC (WV-CW484F) or 220 V to 240 V
AC (WV-CW480S) power source.
• Shrinking the cable-entry seal is a one-
time procedure. Do not shrink the cable
entry seal until it has been ascertained
that unit is functioning.
ONLY CONNECT THIS TO 24 V AC or
12 V DC CLASS 2 POWER SUPPLY.
(WV-CW484F)
• To prevent fire or electric shock hazard,
the UL listed wire VW-1 style 1007 should
be used for the cable for Input Terminals.
• Do not use a transformer larger than
10 VA.
• Cable Length and Wire Gauge
<WV-CW484F>
24 V AC
The recommended cable length and thick-
ness are shown in the table for reference.
The voltage supplied to the power terminals
of the camera should be within 19.5 V AC
and 28 V AC.
Recommended wire gauge for 24 V AC line.
Copper wire #24
2
(0.22 mm ) (0.33 mm
size (AWG)
Length of
Cable (m) 20
(Approx.)
#22 #20 #18
2 2
) (0.52 mm ) (0.83 mm
30 45 75
12 V DC
Use the formula below to calculate the power
cable and power supply. The voltage sup-
plied to the power terminals of the camera
should be within 10.5 V DC and 16 V DC.
Resistance of copper wire [at 20 °C]
Copper wire
(0.22 mm
size (AWG)
Resistance
0.078
Ω/m
10.5 V DC ≤ V
L : Cable length (m)
R : Resistance of copper wire (Ω/m)
V : DC output voltage of power supply
A
unit
I : DC current consumption (A). See
specifications.
Important: When using 12 V DC power sup-
ply, the optional heater unit is unavail-
able.
2
)
#24 #22 #20
2 2
) (0.33 mm ) (0.52 mm
0.050 0.03
- 2(R x I x L) ≤ 16 V DC
A
#18
2 2
) (0.83 mm )
0.018
23