Q-See MODEL QC40198 Manual Do Utilizador

CHAPTER 6  P

AN/TIL
T/ZOOM CAMERAS

CHAPTER 6

The RS485 connector is used to connect and control PTZ cameras. It uses a single-direction 
protocol meaning that it can send commands out to the camera(s) but not receive any data 
back from the unit. 
The DVR is set by default for RS485 to be disabled for each channel. Therefore, PTZ settings 
must be enabled before PTZ cameras can be utilized. This system supports 26 of the most 
common protocols including Pelco-D and Pelco-P. 
When connecting a PTZ camera, the following should be taken into account:
• Ensure that the camera has the same grounding with the DVR otherwise you may not be 
able to control the PTZ. Shielded twisted wire is recommended with the shielded layer being 
used to connect to the ground. Improper grounding may result in chip damage.
• For excessively long wire runs, or if multiple PTZ cameras are connected to the DVR, 120Ω 
should be parallel connected between the A and B lines on the far end to reduce reflection 
and maintain the signal quality
• The 485 port of this DVR cannot parallel connect with the 485 port of another device
• The voltage between the A and B lines of the camera should be less than 5V.

STEP 1. The data cable from the PTZ 

camera must be connected to 
the ports highlighted in 

Picture 

6-1

. Multiple PTZ cameras can be 

connected to this port, but you may 
require an expander port to do so.

 
STEP 2. Connect the other end of 

the cable to the proper pins in the 
connector on the camera

STEP 3. Connect the camera video and 

power cables as you would any other 
camera.

The following instructions are based on the Pelco-D protocol. You will need to have the 
manual for your PTZ camera at hand to ensure the proper settings within the DVR.

For ease of set-up, the PTZ camera’s video feed should be displayed on the screen.

STEP 1. Open the Pan/Tilt/Zoom 

Menu from the Settings menu. You 
cannot use the 

Shortcut Menu to 

access the PTZ controls until after 
you have configured a channel to use 
PTZ.

 

STEP 2. Be certain that the channel 

listed at the top is the one which 
the PTZ camera will be connected 
to.  Enter data into the other fields 
according to the data provided in 
your PTZ camera’s manual, including 
protocol, data bits, stop bits and 
parity. 

 

STEP 3. Click the save button once you 

have entered the settings. If you are 
operating an identical PTZ camera 
on another channel, you may use the 
Copy and Paste buttons to apply 
those settings to the channel that 
camera is connected to.

STEP 4. Once you have saved your 

settings and exited the menu, you 
can right-click the mouse to bring up 
the 

Shortcut Menu allowing you to 

select the Pan/Tilt/Zoom controls.