[rescue] Unwilling Crimson
Sheldon T. Hall
shel at tandem.artell.net
Wed Jan 4 17:22:01 CST 2006
Quoth Mike Meredith ...
> On Wed, 04 Jan 2006 20:26:56 +0100, Joost van de Griek wrote:
> > Nothing comes up on a terminal (VT100, 9600-8N1) attached to any of
> > the serial ports, either, but we connected that with so many gender
> > changers and 25-9 converters that it may well have simply been
> > connected incorrectly.
> As you've got some output there's a chance that it's nearly right, but
> the SGI 9-pin serial port has a different pinout to a 'standard' 9-pin
> serial port :-
> The DB-9 female serial port connectors, which are found on the
> CHALLENGE and Onyx systems, have the following pin assignments.
> \ 5 4 3 2 1 /
> \ 9 8 7 6 /
> Pin | Name | Description
> 2 | TD | Transmit Data
> 3 | RD | Receive Data
> 4 | RTS | Request To Send
> 5 | CTS | Clear To Send
> 7 | SG | Signal Ground
> 8 | DCD | Data Carrier Detect
> 9 | DTR | Data Terminal Ready
> Also make sure you don't have the keyboard plugged in.
And, I might add, when you hook up your terminal or whatever to the serial
port, try no handshaking at all on the terminal. No RTS/CTS, no Xon/Xoff,
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