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AutoDome Modular Camera System Pelco® Protocol Mode | en 25
Bosch Security Systems, Inc. VG4-200, VG4-300, VG4-500i Series User’s Manual F01U064036 | 1.0 | 2007.01
4 Pelco® Protocol Mode
The Pelco Mode features Auto Baud Detection that automatically detects and adjusts the
AutoDome protocol and baud rate to match that of the controller. The AutoDome responds to
Pelco-D or Pelco-P protocol commands.
4.1 Hardware Configuration
The AutoDome is configured from the factory for RS-485 operation in Pelco Protocol Mode.
1. Connect the controller's TX terminals to the AutoDome's TxD terminals. See the
AutoDome Modular Camera System Installation Manual for complete wiring instructions.
2. Pan or tilt the keyboard joystick to confirm that control has been established to the
AutoDome (approximately five (5) seconds).
Fig. 4.1 RS-232/RS-485 Selection Switch
i
NOTICE! The AutoDome supports only the RS-485 protocol. It does not transmit responses
back to the controller.
i
NOTICE! If control is not established, ensure that the RS-232/RS-485 selector switch is
positioned to RS-485 (outward toward the LED lights). This switch is located on the bottom of
the AutoDome CPU board, under the camera head and next to the LED lights. See Figure 4.1.
SWITCH
LOCATION
CPU MODULE BOARD
RS485
LEDs
Switch Location
RS485
LEDs
CPU Module Board