Mount Configuration

Mount Type: Select the mount type that matches your mount. In addition to the nine Astro-Physics GTO models, there are three OEM manufacturers listed that use the Astro-Physics GTO Servo Control System.  

Controller: Select the controller type. Most later mounts have the GTOCP3, GTOCP4 or GTOCP5 controller.

Note: It is important to set the mount controller to the correct type because the driver will send different commands depending on which controller it thinks it is talking to.

If you are unsure of the control box model take a look at the receptacle plate of the controller. It should have the model number printed on it just to the left of the two serial RS-232 ports (e.g. GTOCP2/3/4).  Also, if it has a USB and Ethernet receptacle, it is either a GTOCP4 or 5.