User's Manual

Appendix F. Computer Control a CEM40 Mount

The CEM40 mount can be controlled by a SmartPhone, a tablet or a computer. It is supported by two

types of computer connections:

 Connect to a computer via USB port on the mount main board using a USB cable. You may

need to install a FTDI USB to RS232 VCP driver

(https://www.ftdichip.com/Drivers/VCP.htm). The mount can be controlled via ASCOM

protocol (Windows OS), or directly by some software, such as Sky Safari (Mac OS).

 Connect wirelessly with iOptron iStarFi adapter for CEM40 (#7434). The mount can be

controlled via ASCOM protocol (Windows OS), SmartPhone/Pad and Mac OS wirelessly.

See iStarFi Instruction Manual for detailed information.

To control the mount via ASCOM protocol, you’ll need:

1. Download and install the latest ASCOM Platform, currently 6.4 SP1, from http://www.ascom-

standards.org/. Make sure your PC meets the software requirement.

2. Download and install the latest iOptron Telescope ASCOM/Commander for CEM40 from

iOptron website.

3. Planetarium software that supports ASCOM protocol. Follow software instructions to select

the iOptron Telescope.

Please refer to iOptron website, www.iOptron.com, under Support Directory/ASCOM Driver, iOptron

Telescope ASCOM Driver, for more detail.