There’s a lot of differing information about what the proper cabling for connecting Cisco/HP/whatever network gear to an ACS console server. I’ve seen everything from straight-through to rollover to a modified version of straight-through. However, Avocent provided the correct version and I’ve verified that it works.
From the Avocent/Emerson Power site:
3 TxD ———— RxD 6
6 RxD ———— TxD 3
4 Gnd ——–|— Gnd 4
|— Gnd 5
2 DTR ———— DSR 7
7 DCD ———— DTR 2
1 RTS ———— CTS 8
5 CTS ———— RTS 1
To build this, take a standard TIA-568B straight-through cable and cut of one end. Remake the cut end as follows:
The factory end would go into the console port of the network gear, while your custom end would go into the ACS.