iOptron 7603A, Instruction Manual

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2.2. Identification of Parts
Figure 1.GEM45 mount assembly (GEM45G Shown)
2.3. GEM45 Mount Basic Cable Connection
2.3.1. Power Panel on Rear of RA axis
Figure 2. GEM45 Power Panel on Rear of RA axis

POWER (I/O): Power Switch

DC 12V 5A: DC power socket to power the mount (2.5mmX5.5mm, center positive)

USB2.0: USB input port to connect to iPolar, iGuider, USB 2.0 Port on dovetail saddle, as well as
mount computer control and firmware upgrade.