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The JMI Telescopes DRO Hand Unit is just the controller box that is used with a JMI Telescopes MOTOFOCUS, EG, or NGF focus motor and a DRO Encoder Assembly.
It uses a telephone-type cord to attach to the DRO Encoder Assembly, which in turn is attached to the MOTOFOCUS focus motor.
In addition to the telephone-type cord which attaches to the DRO Encoder Assembly, this DRO Hand Unit also has a 1/8" (3.5mm) miniphone cord so that you have the option of directly commanding the JMI focus motor without the use of the DRO Encoder Assembly.
The DRO Hand Unit is powered by a supplied 9-volt battery.
Attaches to DRO Encoder Assembly, but can also be used directly upon JMI MOTOFOCUS, EV, or NGF focus motors if desired (through 3.5mm miniphone connection)
In the Box
JMI Telescopes Hand Unit for DRO Digital Focusing Readout