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RS-232 Cable for Celestron Computerized Telescopes
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RS-232 Cable for Celestron Computerized Telescopes
$16.95
 
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  • Connects Celestron NexStar GoTo Hand Controller to a PC
  • Allows you to use astronomy software to control your NexStar telescope
  • Use astronomy software to locate objects of interest to examine through the NexStar telescope
  • Improves efficiency of each observing session
  • Connects Celestron NexStar to standard RS-232 PC port


Item #  05625
Mfg Model #  93920
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Orders received by noon Pacific Time for in-stock items ship the same business day. Orders received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

Reviews
RS-232 Cable for Celestron Computerized Telescopes
Rating??
3.3 / 5
3.3 / 5
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Rating Breakdown 3 Reviews
5 stars
1
4 stars
1
3 stars
0
2 stars
0
1 star
1
Quality??
5 / 5
5 / 5
Value??
4 / 5
4 / 5
2 out of 2(100%)reviewers recommend this product.
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3 The RS-232 Cable for Celestron Computerized Telescopes connects the GoTo Hand Controller to a PC to use astronomy software to control your telescope.
Rating??
3.3 / 5
3.3 / 5
Open Ratings Snapshot
Rating Breakdown 3 Reviews
5 stars
1
4 stars
1
3 stars
0
2 stars
0
1 star
1
Quality??
5 / 5
5 / 5
Value??
4 / 5
4 / 5
2 out of 2(100%)reviewers recommend this product.
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Ratings summary
Rating??
3.3 / 5
3.3 / 5
Open Ratings Snapshot
Rating Breakdown 3 Reviews
5 stars
1
4 stars
1
3 stars
0
2 stars
0
1 star
1
Quality??
5 / 5
5 / 5
Value??
4 / 5
4 / 5
2 out of 2(100%)reviewers recommend this product.
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Rating??
4 / 5
4 / 5
Inherent flaws, but it gets the job done.
PostedSeptember 13, 2011
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Unomono
 
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from??Rocky Mountains
Quality??
5 / 5
5 / 5
Value??
3 / 5
3 / 5
First let me say what this cable is for. This cable connects a RS-232 serial port on your computer to your Celestron hand control. This is useful if you want to update your hand controller firmware, update your motor control firmware (in some models), or for using planetarium software to control your telescope mount.
Why do I say this cable is flawed? Well, it isn't the fault of the cable itself, but instead of the connectors and interfaces that Celestron selected to carry out this function. On one end you have a DE-9 standard RS-232 connector, and on the other end you have a modular 4P4C connector .
Both of these connectors are ancient compared to most modern electronics. The DE-9 dates to 1952 and the P4PC is from 1975. Most computers sold today aren't even going to have an RS-232 DE-9 port, and the P4PC isn't a great choice for cables that will see multiple insertion cycles as the retention tab frequently breaks off.
RS-232 does have the advantage that it is a very simple interface for the electronics or computer hobbyist who designs their own electronics or software and it remains very common as an industrial control protocol. The P4PC was likely originally chosen because it is dirt cheap, and not because of any inherent advantage of this connector.
It is unfortunate that Celestron didn't choose a more modern interface than RS-232 or a more modern connector than P4PC. Given that these decisions were made a long time ago it probably isn't fair to criticize the cable itself. If you want to connect your computer to your hand control, then this is the right cable. Just know that you will likely have to add an RS-232 port to your computer (just use a USB to RS-232 converter), and remember to be careful not to break off the retention tab or you'll need to buy it all over again.
Pros: does the job
Cons: poor design decisions by celestron
Yes, I recommend this product!
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Rating??
5 / 5
5 / 5
Celeston Mount data cable
PostedSeptember 1, 2011
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patholland
 
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from??Clever, Missouri
Owned this product for:6 mos - 1 year
Quality??
5 / 5
5 / 5
Value??
5 / 5
5 / 5
I purchased this cable for use with my new CGEM mount. Used in concert with a USB to Serial converter it works perfectly. Most new computers (and laptops) no longer have serial ports so a USB to Serial adapter will be necessary for most people to use this cable. The price is great, the cable works perfectly with the Celeston CGEM. I highly recommend the cable to anyone who want computer control of their scope (for planetarium software and/or autoguiding while imaging).
Favorite viewing location:??S.W. Missouri
Favorite object to observe:??M42
Pros: inexpensive
Yes, I recommend this product!
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Rating??
1 / 5
1 / 5
RS-232 Cable
PostedFebruary 12, 2011
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dennis t
 
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IF YOU BUY THIS CABLE IT MIGHT NOT FIT THE BACK OF YOUR COMPUTER SO YOU WILL HAVE THEN BUY MORE PARTS FOR IT TO FIT. CRAPPY PART
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