Pinout for Cat5 cable to connect Avocent/Equinox CPS or ESP port
to a Computone serial dongle (DB9 PC serial port)


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My baby was throwing up and I couldn't sleep, so I worked out this problem on
a sheet of paper...  Ah, the joys of parenting.

I used the Computone RAS 2000 PowerRack Hardware Guide and the Avocent CPS
Installer User Guide to help me figure out the pinouts for this cable.  The
setup: I have several extra Computone serial DB9 dongles, and I have a demo
CPS 1610 unit with no Avocent dongles, and I have lots of spare Cat5 cable
and ends.

(NEW) We recently also discovered that this works on the ESP as well, since they
have the same port pinouts.  However, it won't work on the ELS-II.

For cable end pinouts, I am using this numbering order:

                             ____________________________________
                            /  __________________________________ CAT5
                           /  /
                   /-----------------/|      1 - Green + White stripe
                  /     CABLE       / |      2 - Green
                 /                 /  |      3 - Orange + White stripe
                /_________________/   |      4 - Blue
               / / / / / / / / / /    /      5 - Blue + White stripe
               |-|-|-|-|-|-|-|-|-|   /       6 - Orange
               |                 |  /        7 - Brown + White stripe
               | 8 7 6 5 4 3 2 1 | /         8 - Brown
               |_________________|/
                    | TAB |
                    \     \
                     \_____\



Summary:

Use standard Cat5 ethernet wiring on Avocent CPS or ESP end (I picked that
for simplicity since I am used to crimping this standard already).  Here
it is for completeness:

	1 - Green + White stripe
	2 - Green
	3 - Orange + White stripe
	4 - Blue
	5 - Blue + White stripe
	6 - Orange
	7 - Brown + White stripe
	8 - Brown

Use this order for the Computone dongle end:

	1 - Green
	2 - Orange + White stripe
	3 - Brown + White stripe
	4 - Orange
	5 - Blue
	6 - Blue + White stripe
	7 - Brown
	8 - Green + White stripe


One caveat: in the Computone Dongle, DSR is ignored (disconnected) on the 
console server end -- this would typically connect to DTR on the dongle end
(along with DCD on the server end).  Whether or not this is ultimately 
important to the Avocent CPS / ESP is unclear to me.