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AXIS Q7406 Installation Guide
Page 13

Unit connectors

DIP Switches - Each video input has a corresponding line termination DIP switch. Axis blade video
encoders are supplied with the line termination enabled for each input; that is, with the DIP
switches set to ON (up position).
To connect the video input in parallel with other equipment, disable the input termination by set-
ting the corresponding DIP switch to OFF (down position). Failure to do so may affect the image
quality negatively.
Bus Connector - This is the physical interface to the video encoder rack, providing power, network
and the I/O terminal connector.
Control Button - This button is used to reset the video encoder to the factory default settings. See
page 17.
Reset Button - This button disconnects and reconnects power to the video encoder. See page 17.
Video Inputs - The AXIS Q7406 supports 6 video sources (VIDEO 1 - VIDEO 6). Each video input is
terminated using a coax/BNC connector. Physical connections made using 75 Ohm coaxial video
cable have a recommended maximum length of 800 feet (250 meters).
I/O Terminal Connector(s) (AXIS 291 1U) - Provides the physical interface to 2 configurable
input/outputs on channels 1-2, and 1 configurable output for channels 3-6. Video input 1 on each
blade also provides an RS-485 interface, usually used for connecting Pan Tilt Zoom devices. See Pin
assignments for the I/O Connector of the AXIS 291 1U Video Server Rack, on page 14 for pin
assignment information.
I/O Terminal Connector(s) (AXIS Q7900) - Provides the physical interface for up to 12 I/Os. See
Pin assignments for the I/O Connector of the AXIS Q7900 Rack, on page 15 for pin assignment
information.
RS-485 Connector (AXIS Q7900) - Usually used for connecting Pan Tilt Zoom devices. See Pin
assignments for the RS-485 Connector of the AXIS Q7900 Rack, on page 16 for pin assignment
information.

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