NexStar Resource Site

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Ken Hutchinson's Article on Building a PC Port Adapter
for the AS-GT or NexStar SE and SLT Mounts

Click here for the document in Adobe Acrobat format -
visit www.adobe.com if you need Adobe Acrobat Reader.

The AS-GT mount includes a port for connecting the hand control and a port for connecting an autoguider.  The NexStar SE and SLT mounts include a port for the hand control and an "Aux" port.  The LCM mount has only a single port for the hand control.  In order to upgrade the motor control firmware in the mount, you need a "PC Port" or hand control version 4.13 or higher.  A PC Port can also be used with NexRemote to completely replace the physical hand control.  For more on the ports on the mount, see Odds and Ends for your scope.  For more upgrading firmware, read here

One way to get this port is to purchase Celestron's Auxiliary Port Accessory Kit (part number 93965).  This device provides additional ports (useful for example to connect the GPS module) but some consider it unnecessary and expensive if they only want to upgrade the firmware or replace the hand control with NexRemote.  Ken Hutchinson has put together a document on building a PC Port adapter that connects to the hand control or Aux ports and provides just the PC Port.  Click here for the document in Adobe Acrobat format - visit www.adobe.com if you need Adobe Acrobat Reader.

Thanks Ken!


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