JVC TK-C210FW - Manual (Page 15)

15
DC 12 V or AC 24 V power supply cable
Connect the DC 12 V or the AC 24 V power
supply to the DC 12 V/AC 24 V terminals on the
terminal board. To prevent connection errors or a
cable disconnection, we recommend the use of
lug plates for the connections. The following table
shows the connection distances and connection
cables provided that 2-conductor VVF cables
(vinyl-insulated vinyl sheath cables) are used.
CAUTION:
● If thin cables are used (i.e. with a high
resistance), a significant voltage drop will occur
when the unit is at its maximum power
consumption.
Either use a thick cable to restrict the voltage
drop at the camera side to below 10 %, or place
the power supply near to the camera.
When the voltage is low, the protection circuit
within the camera may be triggered and the
power of the camera may turn off automatically.
● Do not allow input from both a DC 12 V and AC
24 V power supply at the same time.
● When using a DC 12 V power supply, ensure
that the polarities of the cable are correct.
● The AC 24 V power supply should conform to
the following:
U-type: Class 2 only
E-type: Isolated power supply only
Electrical Specifications of Alarm Input
Terminals
(TK-C215V12 only)
● To prevent penetration of noise in the internal
circuitry, apply a non-voltage contact signal to
the ALARM input terminal. Never apply a
voltage.
● Apply an alarm signal for at least 200 ms. If it is
shorter, it is not guaranteed that the signal will
be recognized as an alarm signal.
● Under the alarm status (status when the metal
contact is “make”), select the contact or
connecting wire such that the maximum wire
resistance between the ALARM IN and ALARM
GND is within 150
K.
‹ Polarity of alarm signals
Conductor diameter (mm) R 1.0 mm
(AWG18) R 1.6 mm
(AWG14) R 2.0 mm
(AWG12)
TK-C210FW
Maximum
extension DC12V
80 m
(260ft) 210 m
(680ft) 340 m
(1100ft)
AC24V
210 m
(680ft) 540 m
(1700ft) 860 m
(2800ft)
TK-C215V4
Maximum
extension DC12V
50 m
(160ft) 140 m
(450ft) 220 m
(720ft)
AC24V
130 m
(420ft) 350 m
(1100ft) 550 m
(1800ft)
TK-C215V12
Maximum
extension DC12V
30 m
(90ft) 80 m
(260ft) 130 m
(420ft)
AC24V
80 m
(260ft) 210 m
(680ft) 340 m
(1100ft)
ALARM INPUT
SHORT (CONTACT) ALARM
OPEN NORMAL (HOME POSITION)
ALARM IN
ALARM GND
TK-S215_EN.book Page 15 Tuesday, March 28, 2006 9:39 AM