NOTICE: /dev/cuaa%d -> /dev/cuad%d renaming
Randy Bush
randy at psg.com
Wed Oct 13 19:29:14 PDT 2004
>> i am chasing this. but i am getting confusing information about
>> which pin is dcd. on your bog-standard pee cee db9m, which pin
>> is dcd?
> Pin 1.
then phk's initial question was spot on. i need to figure out how
to wire up pin 1. it's coming from a cisco 2511 over an rj45 to
wirable shells which i currently wire as
PC DB9F connector for 2511 RJ45:
2 yellow
3 black
4 orange
5 red
6 brown
7 blue
8 white
pins 1 and 9 and the green wire currently unwired. now i have to
trace the 2511's forward. cisco docs say
DTE Async serial ports, via RJ-45 plug on the octopus cable,
1 CTS to 2511
2 DSR/DCD to 2511
3 Rxd to 2511
4 Rxd/Gnd ---
5 Txd/Gnd ---
6 Txd from 2511
7 DTR from 2511
8 RTS from 2511
mobo docs say shell color
1 CD nc
2 RD yellow
3 TD black
4 DTR orange
5 GND red
6 DSR brown
7 RTS blue
8 CTS white
9 RI nc
the piece of paper in the wirable rj to db shell sez
1 blue
2 orange
3 black
4 red
5 green
6 yellow
7 brown
8 white
so, as best i can read it, this says
cisco cable wires pc db9f/m
2511 color mobo
---------- ------ ------
1 cts in blue 7 rts
2 dsr/dcd in orange 4 dtr
3 rxd in black 3 txd
4 rxd gnd red 5 gnd
5 txd gnd green nc
6 txd out yellow 2 rxd
7 dtr out brown 6 dsr
8 rts out white 8 cts
1 dcd
so, essentially, as there is no modem, and the cisco 2511 does not
provide a dcd-out, i get to install a 12vdc battery :-)
randy
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