User's Manual

button adjacent to the corresponding connector. The bottom row of buttons controls the

torque and the upper row controls the direction.

· At each press of the torque button, the LED color changes to indicate the

maximum torque level: blue minimum, green mid-level, red – maximum.

· Pressing the direction button changes the motor direction to correspond with the

Hand unit. The white LED indicates the status.

· After approximately 4s from the last button press, the display will turn off.

Camera control signals are provided at the “Camera" receptacle of the MDR3. In addition,

the camera receptacle also provides:

· Serial control signals for controlling the internal servos of Fujinon Cabrio lenses.

· The signals required for VTR start for Sony cameras as well as internal zoom drive

for Canon and Fujinon video style lenses with integral zoom drives.

The Microwave Transceiver is located in the lid of the MDR3. It provides wireless bi-

directional communication between the MDR3, Hand Unit, Focus/Iris units and other clients

in the wireless network. The lid also contains a voltage booster enabling MDR3 operation

over an input voltage range from 11 to 30 volts.

The wireless channels are selected by pressing the up/down channel switches located on

both the MDR3 top cover and side. There are 30 channels numbered 0 – 29 and are

backwards compatible with the MDR2 G4 units. Channels 29 – 59 use enhanced data

encoding and eliminate interference between closely spaced units.

The software controlling the MDR3 is updated through the USB receptacle and the USB cable

that connects the MDRs to the USB receptacle of a PC or MAC (OS 10.5 or later). Software

updates are available either as a CD or download from our web site:

http://www.prestoncinema.com/downloads.html.

To initiate the update, remove power from the MDR3. Connect the USB cable between the

computer and MDR3 USB receptacle. Open the MDR3 update program. While holding the

reset button down, apply power to the MDR3. Release the reset button. The program

should now report that it has found a connection to the MDR3 and asks whether you want

to proceed with the update. Choose yes. After the program has completed the update, you

can remove the USB cable from the MDR3.

The serial receptacle functions:

· Accepts motion control commands from an external computer using RS-

232 data.

· Accepts distance data from the Panatape or Cinetape devices using the

Panatape interface cable p/n 4534 or Cinetape cable p/n 4542. It can also