ST4 port pinout

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renato
Posts: 1
Joined: Fri Feb 08, 2019 8:06 am

ST4 port pinout

Post by renato » Fri Feb 08, 2019 8:14 am

Hi,
I need the following information about ASI ST4-port pinout. According to the manual the pinout is like the one in the picture attached. But in this picture the RA- command seems to correspond to pin 1 that cannot be, as pin1 is not wired (NULL pin). So I'm not sure I understood this scheme.
Can you confirm I got the correspondence pin <-> command correct?

PIN 1= NULL
PIN2 (black) = COM
PIN 3 (red) = RA+
PIN 4 (green) = DEC +
PIN 5 (yellow) = DEC -
PIN 6 (blue) = RA-

Thank you
Attachments
ST4 asi.png

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chad
Posts: 527
Joined: Thu Feb 09, 2017 4:58 am

Re: ST4 port pinout

Post by chad » Tue Feb 12, 2019 3:14 am

Hi,
First, all the ST4 port of our camera is designed in the same way.
Second, for the holes on the camera side, the line sequence is correct. for the port on the cable side, it is also corrent.
For the shotcut, it is right, just one thing you should take care. It's the front of the port. When you connect it to the camera, you need to turn it around. In other words, if you see it from the back of the port, it will be right.
Thanks
Chad
ZWO Driver Engineer
Location:lon=120.6 lat=31.3
SuZhou China

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