I have the http://www.datateknikk.no/gp900jediportserv.gif and wonder, who terminal is the one that i use to get the data to and from this radio, i use the terminal 4 (+7 Volt), 8 (gnd) and need the last terminal to gain / receive datasignals on the GP900. It is the same as JT1000/HT1000 Jedi.
The terminal 9 says BUSY and 13 says BUS+, i do beleave this is NOT the one that i use, i think it is the one of theese: terminal 11 or 9? I get the 7 volt to turn ON the RIB by terminal 4 and 8 4 = +7 Volt, 8 = GND, but do not know the terminal to read and send data to radio, i use the GP/GM300 RIBless pin 2 (data), 4 (+7 volt) and pin 5 gnd on the RJ45.
Pin 4 and 5 on GM/GP300 RIBless (RJ45) to terminal 4 an 8 on GP900, that i found out but NOT witch terminal on GP900 to send/receive DATA.
HT1000 / GP900 Jedi
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This link should answer your questions: http://batlabs.com/visar.html