Q-See QSZ515D User Manual - page 5
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CONNECTING THE CAMERA
Before you can operate the camera, you must connect it to a system which can support PTZ operations. There are three sets of
connectors - power, video and the bare control wires. This latter connection is covered on the next page. We recommend connecting
the camera (at least temporarily) to the DVR to test your settings and connections before mounting it in its final location.
AUDIO IN
VIDEO IN
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PTZ CONTROL CONNECTION
In addition to connecting the power and video leads to the camera, you must also connect the two
bare wire leads to the RS485 ports in the alarm block on the back of the DVR. These blocks can
vary in layout as shown below, but the ports used by your camera are generally labelled “RS485”,
“RS422”, “PTZ” or “P/Z”.
As seen in the picture on the right, the bare wire leads are two different colors and are labelled.
In the case of the RS485 ports being marked as positive (+) and negative (-), the wire designated
RS485A is the positive lead while the wire marked RS485B is to go into the negative port. Most
blocks require a lock above the port to be depressed with an object like a small screw driver in
order to fully insert the wire. When the lock is released, an internal clamp will keep the wire firmly
secured in the port. If the wire can easily be removed from the port, then it isn’t secure and you
can experience control difficulties until it is properly attached. You may need to strip more insulation
from the wire before reattempting.
Multiple PTZ cameras may be connected to the same ports. They will each require a different
address which is set up using the DIP switches as covered in the previous section.
POWER AND VIDEO CONNECTION
STEP 1. Connect the BNC and power leads from the
camera to the matching connectors on a video/power
siamese cable (not included).
STEP 2. Connect the power lead on the other end of
the video/power cable to a power adapter or power
distribution panel.
Make certain that the
power supply is rated for 12 volts and
800mA.
STEP 3. Connect the BNC connector on that same end of
the cable to a Video In port on the back of the DVR.
You can now plug the camera’s power adapter into a surge
protector and turn it on. To protect your investment, we
STRONGLY recommended using a surge protector that is
UL-1449 rated, for a clamping voltage of 330 or lower, a Joule
rating of at least 400 and a response time of 10 nanoseconds
or less.
IMPORTANT! When connecting the power and
video cable between the camera and the DVR, the
“male” power end (red plug) connects to the matching
power lead on the camera.
To connect your camera to the DVR over a distance, you will need to
use both a video/power cable and a pair of 24-gauge wires to connect
to the alarm block. Alternatively, with the proper RS485 to Ethernet
converter you can use a standard CAT-5 cable for your control feed.
Once you have made your connections, you will need set the DVR
in order to control it. You will need to consult your DVR’s manual for
this procedure, but a sample screen (from a Q-See QT-series DVR) is
shown on the right.