Opengear cm4048

first, the useful bits of docs are here: ftp://ftp.opengear.com/manual/IMG-IM-CM4000%20User%20Manual3.4.pdf start reading on page 208. the rest of it is gui garbage

second, pinouts. OpenGear seems to prefer straight through cables. here is the pinout for a rj45->db9 to put a server on the OpenGear, assuming you are using a straight through cable. (I'm considering standardizing on rollover cables for compatibility with YOST, but that might add to the confusion)

1 -> black
2 -> red
3 -> green
4 -> brown
5 -> yellow
6 -> orng
7 -> blue
8 -> white (grey on the Frys adaptors)

WRONG WRONGWRONG

opengear:http://www.opengear.com/cabling319001.html

1 - RTS
2 - DSR
3 - DCD
4 - RD
5 - TD
6 - GND
7 - DTR
8 - CTS

So, to wire a db9->rj45:

rj45    db9
1   8
2     4   (green is also 4)
4    3
5    2
6    5
7    1 and 6 (we call it 1)
8   7