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EPTZ100_ma_en_rev03.doc 20
3.3 COMMUNICATION SETTINGS
The setup for general RS-485 parameters - protocol type, RS-485 address and baud rate - is done by DIP
switches, located at the top of the camera module.
Correct settings are essential for communication with the dome controller.
For correct communication, all 3 parameters - protocol, baud rate and RS-485 ID- have to comply with the
PTZ controller settings.
The 120 Ohm termination (DS3) is used at the last dome in the RS-485 bus for avoiding reflections in the
RS-485 bus.
Location of DIP switches:
DS1: Protocol and baud rate
DS2: RS-485 ID (address)
DS3: 120 Ohm termination of RS-485 bus
3.3.1 Baud rate and Protocol
The baud rate setting is done by switch 1 and 2 of DS1:
The telemetry protocol setting is done by switch 3, 4 and 5 of DS1:
DS3 DS1 DS2