Aposonic A-S1604R20A - Manual (Page 18)

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 Call monitor
Connect the call monitor output connector to a surveillance TV monitor. This
monitor displays the full screen images of the cameras associated with the events
(alarm or motion) or the images from the installed cameras sequentially according
to the SEQ Display Setup (
Section 6.4 ) for call monitor.
 PTZ Cameras
Connect the RS-232 connector or the RS-422/485 connector to PTZ camera(s) via
the appropriate cable. The system supports a variety of different PTZ cameras,
including Pelco D protocol Dome, SamSung SCC-641P, Kalatel Cyber Dome,
Bosch AutoDome, etc. But different PTZ cameras can coexist in a system only
if they support the same protocol. Please make sure to set the PTZ ID of the
camera(s), and setup the camera (
Section 6.1 ), and RS-232 or RS-422/485
( Section 6.9 ) accordingly. Please also make sure to set the RS-422/RS-485
Selector Switch if you are using the RS-422/485 port.