Correct me if I'm wrong,DCA-510 help

[ah2006]

this is my first post in this "hardcore" siemens forum, i see

I want to construct my own dca-510 cable, so I could get the components & find this diagram





now, correct me If I'm wrong:

vdd3 is not connected to any
vdd will be connected to phone pin number 1

Also I'm confused about what pins will not be connected, & what pins will be short-circuited????

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Great thanks