照中國網友說starfi
http://bbs.imufu.cn/thread-308978-1-1.html那6線是接hbx但是是給電用 ,4線是連接rs232,萬一沒有就無法用,
starFi +CEM25
https://www.youtube.com/watch?v=XcAoR0t9_7k==
還有產品是skyWire . 手機otg轉rs232 可手機控制赤道儀
不過有提到848401缺rs232,meade ext某些也是,
The only models that do not work with SkyWire are those that
lack an RS-232 serial interface. Such models include:
iOptron SmartStar and MiniTower mounts with 8401/8402 controllers
Meade ETX-LS
Vixen mounts with StarBook controllers