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3.3 Input Power
The SR-Series cameras operate on either 24VDC or 24VAC power (nominal). Refer to section 0
SR-Series Camera Specifications
for additional power requirements. The cameras provide
screw-terminals for receiving tinned leads for input power. For details on how to connect the
leads, refer to the installation section for each specific camera below.
The system is fuse-protected against over-voltage conditions. A blown fuse is an indication
either that the circuit has been overloaded or that a short circuit has occurred somewhere in the
circuit. A wiring problem may be placing too much of a load on the circuit if a fuse blows after
plugging in or turning on the camera. Before replacing the fuse it is important to identify what
has caused it to fail.
Prior to changing a fuse, turn off the electrical circuit or completely disconnect the camera.
Make certain that no dangerous condition exists before restoring power. Replace the fuse with a
fuse that is of the same rating and proper for the circuit. Never use anything other than a fuse of
proper rating.
Caution! Failure to disconnect power to the camera while replacing a fuse could result in
accidental injury or death.
3.4 Sealed Cable Glands
With the exception of the SR-100P, cables enter the SR-Series cameras through liquid-tight
compression glands. Be sure to insert the cables through the cable glands on the rear of the
enclosure before terminating and connecting to the camera (the terminated video cable will not
fit through the cable gland). The camera power cable (and serial cable, if used) should be
inserted through the cable gland on the left of the rear of the enclosure, and the video cable
should be inserted through the cable gland on the right. Leave the glands loosened until the
cable installation has been completed.
427-0014-00-10 Revision 150
Copyright © 2007 FLIR Systems, Inc.
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