Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Your cart

Loading...

Estimated total

$0.00 USD

Taxes, discounts and shipping calculated at checkout.
  • Orders ship from Torrance, California.
  • Orders placed after 12:00 PM Pacific Time or over the weekend will be shipped within 1-2 business days.
  • Please note, our Distribution Center will be closed on the following dates: Thursday November 27, Friday November 28, Thursday December 25, and Thursday January 1, 2026

Just Launched 🚀 Welcome to the All-New Celestron.com Website

  • Shop
    • Up to $200 in Savings!
      Save now on our Nexstar SE family of telescopes. Sale ends December 31st.
      Meet Celestron Origin Mark II
      Celestron Origin Mark II now comes equipped with the Origin 678C Camera
      Celestron Holiday Gift Guide
      Our best holiday gifts are here!
    • Telescopes
      StarSense Explorer Series
      NexStar SE Series
      Advanced VX Series
      Celestron Origin  Mark II Intelligent Home Observatory
      Celestron Origin Mark II
      View all Telescopes
      • Telescopes Under $500
      • Beginner Telescopes
      • Intermediate Telescopes
      • Advanced Telescopes
      • Refractors
      • Newtonian Reflectors
      • Schmidt Cassegrain
      • EdgeHD Telescopes
      • RASA Telescopes
      • Telescope Optical Tubes
      • Telescopes By Series
    • Imaging & Astrophotography
      NexYZ DX Smartphone Adapter Kit
      NexYZ DX Smartphone Adapter Kit
      T-Ring for Canon EOS-EF Mount Camera
      T-Ring for Canon EOS-EF Mount Camera
      Universal T-Adapter - 1.25"
      Universal T-Adapter - 1.25"
      View all Imaging & Astrophotography
      • Astroimaging Cameras
      • Smartphone Adapters
      • Astroimaging Filters
    • Mounts & Tripods
      Advanced VX Mount and Tripod
      Advanced VX Mount and Tripod
      Tabletop Tripod
      Tabletop Tripod
      Tripod for StarSense Explorer Tabletop Dobsonian Telescopes
      Tripod for StarSense Explorer Tabletop Dobsonian Telescopes
      CGX Equatorial Mount and Tripod
      CGX Equatorial Mount and Tripod
      View all Mounts & Tripods
      • Telescope Mounts
      • Tripods
      • Wedges
      • Mount Accessories
    • Accessories
      NexYZ DX Smartphone Adapter Kit
      NexYZ DX Smartphone Adapter Kit
      AC Adapter - 2 Amp
      AC Adapter - 2 Amp
      Eyepiece and Filter Kit - 1.25"
      Eyepiece and Filter Kit - 1.25"
      SkyPortal WiFi Module
      SkyPortal WiFi Module
      View all Accessories
      • Eyepieces
      • Filters
      • Navigation
      • Power Supplies
      • Dew Prevention
      • Cases & Bags
    • Binoculars & Sport Optics
      Outland X 10-30x50mm Zoom Monocular with Tripod
      Outland X 10-30x50mm Zoom Monocular with Tripod
      TrailSeeker ED 8x42mm Roof Binoculars
      TrailSeeker ED 8x42mm Roof Binoculars
      SkyMaster 25x70mm Porro Binoculars
      SkyMaster 25x70mm Porro Binoculars
      TrailSeeker 16-48x65mm Angled Zoom Spotting Scope
      TrailSeeker 16-48x65mm Angled Zoom Spotting Scope
      View all Binoculars & Sport Optics
      • Binoculars Under $200
      • Astronomy Binoculars
      • Outdoor & Wildlife Binoculars
      • Compact Binoculars
      • All Binoculars
      • Monoculars
      • Spotting Scopes
      • Outdoor Electronics
      • Sport Optics Accessories
    • Solar Observing
      EclipSmart Solar Filter for 8” Schmidt-Cassegrain and EdgeHD Telescopes
      EclipSmart Solar Filter for 8” Schmidt-Cassegrain and EdgeHD Telescopes
      EclipSmart 12X50mm Porro Solar Binoculars
      EclipSmart 12X50mm Porro Solar Binoculars
      EclipSmart Universal Solar Filter
      EclipSmart Universal Solar Filter
      EclipSmart Solar Filter for PowerSeeker 127EQ, NexStar 130SLT, StarSense Explorer DX 130AZ, StarSense Explorer LT 127AZ, Astro Fi 130, Omni XLT AZ 130, SkyProdigy 130 Telescopes
      EclipSmart Solar Filter for PowerSeeker 127EQ, NexStar 130SLT, StarSense Explorer DX 130AZ, StarSense Explorer LT 127AZ, Astro Fi 130, Omni XLT AZ 130, SkyProdigy 130 Telescopes
      View all Solar Observing
      • Solar Binoculars
      • Solar Filters
      • Observing and Imaging Kits
    • Microscopes
      PentaView LCD Digital Microscope
      PentaView LCD Digital Microscope
      Celestron Labs S1030N Stereo Microscope
      Celestron Labs S1030N Stereo Microscope
      View all Microscopes
      • Digital Microscopes
      • Compound Microscopes
      • Stereo Microscopes
      • Microscope Accessories
    • Apparel
    • New Arrivals
    • Current Promotions
    • Clearance
    • Used Outlet
  • Learn
  • Support
    • Encountering issues with your Celestron product, in need of repair, or just have a technical question? We’re here to help!
    • How-To Videos
      Our video guides walk you through setup, features, and troubleshooting with helpful demonstrations from our expert staff.
    • Manuals & Software
      Access the latest software, drivers, firmware, and product manuals all in one place.
    • Knowledge Base & FAQ
      Find answers fast. Our comprehensive knowledge base is your go-to resource for getting the most out of your Celestron product.
    • Spare Parts
      Browse our catalog of genuine spare parts and accessories.
    • Product Registration
    • Warranty Information
    • Technical Support
  • Dealers
Log in

Country/region

  • United Kingdom United Kingdom
  • United States United States
  • Twitter
  • Facebook
  • Instagram
  • YouTube
    Featured
    StarSense Explorer
    StarSense Explorer Series
    NexStar SE
    NexStar SE Series
    Advanced VX
    Advanced VX Series
    Origin Intelligent Home Observatory
    Origin Intelligent Home Observatory
    Telescopes Under $500 Beginner Telescopes Intermediate Telescopes Advanced Telescopes Refractors Newtonian Reflectors Schmidt Cassegrain EdgeHD Telescopes RASA Telescopes Telescope Optical Tubes Telescopes By Series View all Telescopes
    Featured
    NexYZ DX Smartphone Adapter Kit
    NexYZ DX Smartphone Adapter Kit
    T-Ring for Canon EOS-EF Mount Camera
    T-Ring for Canon EOS-EF Mount Camera
    Universal T-Adapter - 1.25"
    Universal T-Adapter - 1.25"
    NexImage 5 Solar System Imager (5MP)
    NexImage 5 Solar System Imager (5MP)
    Astroimaging Cameras Smartphone Adapters Astroimaging Filters View all Imaging & Astrophotography
    Featured
    Advanced VX Mount and Tripod
    Advanced VX Mount and Tripod
    Tabletop Tripod
    Tabletop Tripod
    Tripod for StarSense Explorer Tabletop Dobsonian Telescopes
    Tripod for StarSense Explorer Tabletop Dobsonian Telescopes
    CGX Equatorial Mount and Tripod
    CGX Equatorial Mount and Tripod
    Telescope Mounts Tripods Wedges Mount Accessories View all Mounts & Tripods
    Featured
    NexYZ DX Smartphone Adapter Kit
    NexYZ DX Smartphone Adapter Kit
    AC Adapter - 2 Amp
    AC Adapter - 2 Amp
    Eyepiece and Filter Kit - 1.25"
    Eyepiece and Filter Kit - 1.25"
    SkyPortal WiFi Module
    SkyPortal WiFi Module
    Eyepieces Filters Navigation Power Supplies Dew Prevention Cases & Bags View all Accessories
    Featured
    Outland X 10-30x50mm Zoom Monocular with Tripod
    Outland X 10-30x50mm Zoom Monocular with Tripod
    TrailSeeker ED 8x42mm Roof Binoculars
    TrailSeeker ED 8x42mm Roof Binoculars
    SkyMaster 25x70mm Porro Binoculars
    SkyMaster 25x70mm Porro Binoculars
    TrailSeeker 16-48x65mm Angled Zoom Spotting Scope
    TrailSeeker 16-48x65mm Angled Zoom Spotting Scope
    Binoculars Under $200 Astronomy Binoculars Outdoor & Wildlife Binoculars Compact Binoculars All Binoculars Monoculars Spotting Scopes Outdoor Electronics Sport Optics Accessories View all Binoculars & Sport Optics
    Featured
    EclipSmart Solar Filter for 8” Schmidt-Cassegrain and EdgeHD Telescopes
    EclipSmart Solar Filter for 8” Schmidt-Cassegrain and EdgeHD Telescopes
    EclipSmart 12X50mm Porro Solar Binoculars
    EclipSmart 12X50mm Porro Solar Binoculars
    EclipSmart Universal Solar Filter
    EclipSmart Universal Solar Filter
    EclipSmart Solar Filter for PowerSeeker 127EQ, NexStar 130SLT, StarSense Explorer DX 130AZ, StarSense Explorer LT 127AZ, Astro Fi 130, Omni XLT AZ 130, SkyProdigy 130 Telescopes
    EclipSmart Solar Filter for PowerSeeker 127EQ, NexStar 130SLT, StarSense Explorer DX 130AZ, StarSense Explorer LT 127AZ, Astro Fi 130, Omni XLT AZ 130, SkyProdigy 130 Telescopes
    Solar Binoculars Solar Filters Observing and Imaging Kits View all Solar Observing
    Featured
    PentaView LCD Digital Microscope
    PentaView LCD Digital Microscope
    Handheld Digital Microscope Pro
    Handheld Digital Microscope Pro
    MicroDirect 1080P HDMI Handheld Digital Microscope
    MicroDirect 1080P HDMI Handheld Digital Microscope
    Celestron Labs S1030N Stereo Microscope
    Celestron Labs S1030N Stereo Microscope
    Digital Microscopes Compound Microscopes Stereo Microscopes Microscope Accessories View all Microscopes
    Apparel Visit our store at Threadless.com
    Up to $200 in Savings!
    Up to $200 in Savings!

    Save now on our Nexstar SE family of telescopes.
    Sale ends December 31st.

    Shop Now
    Meet Celestron Origin Mark II
    Meet Celestron Origin Mark II

    Celestron Origin Mark II now comes equipped with the Origin 678C Camera

    Learn More
    Celestron Holiday Gift Guide
    Celestron Holiday Gift Guide

    Our best holiday gifts are here!

    Shop Now
    • New Arrivals
    • Current Promotions
    • Clearance
    • Used Outlet
    Learn

    Encountering issues with your Celestron product, in need of repair, or just have a technical question? We’re here to help!

    Celestron Support
    How-To Videos

    Our video guides walk you through setup, features, and troubleshooting with helpful demonstrations from our expert staff.

    (opens in new tab)
    Manuals & Software

    Access the latest software, drivers, firmware, and product manuals all in one place.

    Knowledge Base & FAQ

    Find answers fast. Our comprehensive knowledge base is your go-to resource for getting the most out of your Celestron product.

    Spare Parts

    Browse our catalog of genuine spare parts and accessories.

    Product Registration
    Warranty Information
    Technical Support
    • CPWI Software
    • SkyPortal App
    • Using Telescope Eyepieces
    Dealers
    Celestron

    Country/region

    • United Kingdom United Kingdom
    • United States United States
    Account and Wishlist
    • My Account
    • Wish List
    • Log Out
    Cart
    1. Home
    2. Support
    3. Knowledge Base
    4. What is the pinout for the Celestron RS232 cable?

    What is the pinout for the Celestron RS232 cable?

    June 8, 2007
    Share

    Go to Mike Swanson’s NexStar Resource Site, nexstarsite.com, for the pinout for the RS232 cable, Celestron item #93920:

    http://www.nexstarsite.com/PCControl/RS232Cable.htm

     

    Updated 12/27/13

    Back to blog

    Share Our Space

    New product launches, stargazing alerts, exclusive content, special deals, and fun—all delivered straight to your inbox and social media feed.

    • Facebook
    • Instagram
    • YouTube
    • Twitter

    About Us

    • Our Story
    • Redefining Technology
    • News & Guides
    • Team Celestron
    • Apparel
    • Public Relations
    • Executive Bios
    • Careers

    Our Products

    • Astronomy
    • Sport Optics
    • Microscopes
    • Clearance
    • Used Outlet
    • Digital Catalogs

    News & Guides

    • News around the universe
    • Celestron in the Community

    Customer Support

    • Technical Support
    • How-To Videos
    • Manuals & Software
    • Knowledge Base & FAQ
    • Product Registration
    • Spare Parts
    • Warranty Information

    Country/region

    • United Kingdom United Kingdom
    • United States United States
    Payment methods
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    © 2025, Celestron
    • Terms of Use
    • Return Policy
    • Privacy Policy
    • California Privacy Notice
    • California Consumer Privacy Act (CCPA) Opt-Out Icon Your Privacy Choices
    • Accessibility Statement
    • Choosing a selection results in a full page refresh.
    • Opens in a new window.