
4.
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PTZ Control Via RS485 Serial Data Connection (Continued...)
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For Multiple PTZ Cameras or Controllers:
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As IRIS8xx DVR
ʼ
s can be used to transmit PTZ control data, they are regarded as a controller (in the
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same way as our IRIS516 or IRIS595 joystick controllers).
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For systems that have more than one controllable (PTZ) camera, and/or multiple controllers, such as
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a DVR and a joystick controller, the serial data has to be managed to ensure there are no issues with
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the serial data levels. noise and interference etc. This is achieved by routing the serial data through
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one of Iris
ʼ
s Serial Data Distributors (known as data expanders). The diagram below shows a typical
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system that uses both a DVR and a joystick controller to control one or more PTZ devices:
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RS-485 Connections:
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v1.02 Page: 14
Section 7:
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Connecting up your DVR (Continued...)
IRIS8xx DVR
IRIS516 Joystick
IRIS-EXP0204
Serial Data Distributor
IRIS116 PTZ Camera
IRIS116 PTZ Camera
RS485 A (+) Black RS485 B (-) White