Rugged pan and tilt unit with RS-485 / RS-232 computer
control to remotely orient camera systems, acoustic equipment,
RF and microwave antennas, and other instrumentation.
The PT-25-FB RS-485 / RS-232 pan and tilt provides 30 lb-ft (40
N-m) of output torque on each axis. Heavy-duty ball bearings supporting
the output shaft allow it to accommodate payloads up to 100 lbs
(45 kg). Each axis of the pan and tilt includes a DC brushless
stepper motor coupled to low backlash harmonic gearing. It is
designed to allow stalling of the output shafts without damage
to the gears, the motors, or control electronics.
The RS-485 / RS-232 control enables the pan and tilt to be highly
configurable and precision controllable. By using either the ROS
positioner GUI (graphical user interface) or the ROS communication
protocol for custom software integration you can control unique
features such as: variable rotation speed, real-time position
feedback, variable braking, programmable software limits, and
networkability of multiple ROS pan and tilts sharing the same
cable. A total of only four wires (two for power; two for communication)
are needed to operate the RS-485 / RS-232 pan and tilts.
Using RS-485 control provides several advantages over RS-232.
RS-485 allows communication over longer lengths of cable (1000
feet) and enables the ability for networking multiple nodes. A
typical computer has the capability of RS-232 communication through
its serial COM ports. Inexpensive devices are readily available
for converting RS-232 to RS-485, USB to RS-485, or Ethernet to
RS-485. The unit may also be controlled by an external joystick.
The PT-25-FB RS-485 / RS-232 pan and tilt is available in two
versions: air-filled or oil-filled. Air-filled pan and tilt units
are used for shallow water applications up to 30 meters depth
and are excellent for above water applications where rain, humidity,
and dust are issues. Oil-filled pan and tilt units are used for
deep water applications up to 3,000 meters depth.
The PT-25-FB RS-485 / RS-232 pan and tilts complement all ROS
underwater lights and underwater
video cameras.
