Unit Connectors - Axis Q7406 User Manual

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 setting 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 Overview, on page 4.
Reset Button - This button disconnects and reconnects power to the video encoder. See Overview, on page 4.
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 input/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, on page 39 for pin assignment information.
I/O Terminal Connector(s) (AXIS Q7900) - Provides the physical interface for up to 12 input/outputs. See Pin assignments,
on page 39 for pin assignment information.
RS-485 Connector (AXIS 291 1U) - The RS-485 COM Port supports several operational modes:
• Generic TCP/IP - enables the video server to receive status/data and send commands via TCP/IP (only for channel 1 in the
291 rack)
• Generic HTTP - enables the video server to receive status/data and send commands via HTTP
• Pan Tilt Zoom (PTZ) - for controlling a PTZ device. A PTZ device requires a driver for its function. Drivers can be obtained
from www.axis.com. Please see Installing PTZ devices, on page 18 for information on how to connect PTZ devices.
While the RS-485 connector can be used to connect a PTZ device, it is necessary that the device's protocol supports 'daisy
chaining' in order to connect and control more than one camera (up to six).
Chaining the units allows them to share a single serial port. The protocol then decides which unit to address and sends
commands to it specifically. See Pin assignments, on page 39 for pin assignment information.
RS-485 Connector (AXIS Q7900) - Usually used for connecting Pan Tilt Zoom devices. See Pin assignments, on page 39 for
pin assignment information.
AXIS Q7406 - Unit connectors
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