Lynx Astro FTDI USB to Serial Adapter for Celestron Handsets (5m)
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Lynx Astro FTDI USB to Serial Adapter for Celestron Handsets (5m)

£34.00
  (2 Reviews)
✓ 2 year warranty

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In stock shipped 1-2 working days.
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About this product

Model:  lynxastro_ftdi_usb_serial_rj10_5m
Part Number:  FES-ASS-LYNX_FTDI_RS232_RJ10

FTDI USB to Serial Cable for Celestron Handsets

This convenient FTDI USB to Serial adapter allows direct connection of your Celestron handset to your computer allowing for firmware updates and computer control.

The FTDI 232R chipset works reliably across all versions of Windows and, because each cable has a unique chipset ID, each time you unplug the adapter then plug it back into the same computer, even if on a different physical USB port, the COM port number remains the same.

And, we quality control each and every Lynx Astro cable prior to dispatch. 

5m cable length.  

Compatible with Windows XP, 7, 8 & 10, Linux, Mac OSX 10.3 and above.

Windows users, the USB to Serial adapter should install automatically but should you require drivers they can be downloaded here.

Customer reviews

Average Rating (2 Reviews):  
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Rating (max 5):  
Patience is a Virtue
Friday, 8 May 2020  | 

I have an older Celestron Nexstar 8SE Telescope and have recently been struggling with alignments using my iPad as a controller. The scope gained a will of it’s own and stopped functioning properly, even after resetting the handset to factory, it just wouldn’t align as it had previously even when I reverted back to the handset control. After reading dozens of posts on various Astronomy forums, I decided to have a go at updating my Handset Firmware. My HC is an older V4 type with the ethernet type connection and bottom left ‘INFO’ button. After being given some expert advise from FLO I purchased this cable as recommended.

I use a Mac and because of COVID-19 lockdown, don’t have any access to a Windows PC so initially struggled to get the cable connecting to the scope. After spending more hours on the forums and asking more questions of FLO I eventually sorted out the problem by downloading two programs - HC Update and MC Update which I found at https://www.nexstarsite.com/Firmware.htm. I then downloaded a free trial copy of Parallels from https://www.parallels.com/uk/ which came with a copy of Windows 10 and took about 20 minutes to install onto my Mac. Once done, I plugged one end of the cable into the USB, the other into the HC and ran both programs, after less than 10 minutes I had a fully updated HC running V4:22 and MC V5:14 and my Telescope now appears to be slewing in all the right directions and works with my iPad.

The cable itself is really good quality and when I connected to my 2011 Mac running High Sierrra it was instantly recognised (Click on 'Apple/About this Mac/system report/usb' and look for a device labelled Future Technology.) it came in it’s own little black bubble envelope which will keep it stowed away nice and tidy so I don’t end up losing it amongst al the other cables I seem to have amassed over the years.

All in all, I can thoroughly recommend this cable if you’re looking for a simple way to update your firmware.


Rating (max 5):  
Works very well to connect laptop to Celestron CGEM mount
Tuesday, 23 April 2019  | 

I use this to drive my Celestron CGEM mount from my laptop without problem. The USB end plugs into my laptop, while the other end (looking a bit like an ethernet plug, but with fewer connectors) plugs into the bottom of the CGEM handset. I believe some newer Celestron handsets have a USB socket instead, but mine has this older style serial socket, and for this the cable works exactly as advertised. I've used PHD2 and BackyardEOS to drive the scope, both of which I believe use the ASCOM drivers I've loaded onto the laptop. All works fine.

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