Ever want to setup up terminal console access to your APC PDUs and no one will tell you how APC's rj11 cable is pinned out to work with a rj45 connector head? Well now you can! There is two way to think about this with the same result.
***Not this was what I used for connecting a Lantronix SCS3205 to APC PDUs***
This is helpful for other types of console servers...
http://www.conserver.com/consoles/Clues/cons-apc.html#rpdu-cables
--First option. The colours...
RJ45 pins - colours of cable
pin3 = orange
pin4 = yellow
pin5 = brown
pin6 = red
*The green and black wires are not necessary
---Second option. Pin to Pins
RJ45 to RJ11
pin3 = pin4
pin4 = pin5
pin5 = pin2
pin6 = pin3
*Pins 1 & 6 are not needed fro the RJ11 cable
If you are using Lantronix SCS's then change the port settings like so...
sysadmin-DEVICE_32>editdev 32
Enter accepts present value
D32: Enter device name | NAME: DEVICE_32>
D32: 0=2400 1=4800, 2=9600, 3=19200,
4=38400, 5=57600, 6=115200 | BAUD RATE: 9600>
D32: 1=1, 2=2 | STOP BITS: 1>
D32: 0=None, 1=Odd, 2=Even, 3=Mark, 4=Space | PARITY: NONE>
D32: 6=6, 7=7, 8=8 | DATA BITS: 8>
D32: 0=OFF, 1=DCE, 2=DTE | EQUIP PORT TYPE: DTE>
D32: 0=XON/OFF, 1=RTS/CTS | FLOW CONTROL: XON/XOFF>
D32: 0=No, 1=Yes | INHIBIT BUFFERING IN DIRECT: No>
I found this out the hard way (really hard way, no joke) after I dealt with APC and they told me the cable was proprietary so they could not give me this information. I said screw that I can figure it out, and I did. Now I post this so EVERYONE can know this information.