Glossary

RS232 Serial Port or RJ9 Plug

updated: 2021-08-19

4P4C or RJ9 connector

Color scheme of the original iOptron RS232 cable

Usage:

for computer control (via ASCOM protocol), e.g. iOptron Commander, PHP2, SGPro: use this RS232 cable and an USB-Serial Adapter
Mount or hand controller firmware upgrade

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