iOptron CEM70 User manual

CEM70 USB 2.0 Connection Check
Tool needed: a set of metric Allen wrench
1. Release two small set screws on the side of the
RA axle rear cover.
2. Pull the RA axle cover open to expose the USB
plug. Check the USB wires and make sure it is
plugged in firmly.
3. To check iPolar connection, remove the iPolar
cap, loosen two setting screws.
4. Pull out the iPolar. Unplug the cable. Check the
plug. Gently pull the cable to check if cable is
loose somewhere.
5. Rotate the dovetail saddle to the side. Release
two screws that hold the USB box to the
dovetail saddle.
6. Remove 4 screws that hold the dovetail saddle
onto the Dec axle.
7. Lift dovetail saddle to expose the USB hub with
cables. Check the USB cable and the iPolar plugs.

If you connect the mount to a PC via the USB
port on the RA axle, you should see iPolar under
Camera of PC Device Manager. If a FTDI VCP
drive is installed, you should also see an
assigned COM port under the Port of the Device
Manager.
iPolar
USB