zamenhof@csli.Stanford.EDU (Dan Fish) (02/15/91)
Fellow NeXT OwNERS:
Please email me if you can help. I want to hook up my NeXTstation as
a terminal for a microcontoller board which has a RS-232C port with a
DB-25 connector. I looked at the ZS man page as printed in the Network
and System Admin book. It gives what appears to be an RS-422 to RS-232
cable for a terminal. I am guessing that this cable will work for the
RS-423 port I have. If I apply that cable hookup to the RS-423 pinout
and the RS-232C pinout I get the following:
RS-423 RS-232C
1 (DTR) -> 8 (DCD)
2 (DCD) -> 20 (DTR)
3 (TXD) -> 3 (TXD)
4 (GND) -> 7 (SG)
5 (RXD) -> 2 (RXD)
8 (CTS) -> 7 (SG)
Is this correct? I am wary of TXD->TXD and RXD->RXD instead of
TXD->RXD and RXD->TXD. Also, should CTS be connected to SG?
Thanks for your help. I am fearful of frying either of them.
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