The Celestron RS-232 Cable is used to connect your PC or computer to NexStar computerized telescopes via a port in the hand control. The large adapter attaches to the serial port of your computer. If your computer does not have a serial port, you will need a Serial-to-USB Adapter (#18775) so that you can connect the RS-232 Cable via a USB port instead. The other end of the cable terminates in a phone-jack style plug, and simply snaps into the port designed for this purpose.
Once you have connected your computer and telescope, you can update your hand control firmware. The latest updates can be found in the Support section of this website.
Connecting a computer to your telescope will also allow you to navigate the telescope from your computer screen! There are many software programs available today that will not only display the night sky as it appears on any chosen observing night, but that will allow you to send your telescope to any object on the screen with the click of a button.
Never run out of your favorites! Select our replenishment service to automatically receive a new shipment of your favorite items in the preferred frequency. Frequency can be selected from the available drop-down on each product page. Replenishment Service is easy and convenient. We offer the following cycles:
Monthly – every 30 days*
Bi-Monthly – every 60 days*
Quarterly – every 90 days*
Semi-Annually – every 180 days*
Your credit card will be charged for each order only when the item is shipped. You may cancel the service at any time by logging into your account.
*The number of days is calculated from the date of original order.
As a premier photo and video outlet, we are full line dealers for the entire range of photographic equipment and
supplies. Whether you are a leading professional or new to photography, our expert staff are always ready to
assist you in finding the perfect equipment at great prices.
Tel: (403) 234-9935
Toll Free: 1-888-539-9397
802 - 11th Ave SW
T2R 0E5 Canada