The Dell branded SIP's will work on all Dell CAT-5 KVM products. Does your adapter say Dell USB or PS/2 SIP? The reason why I am asking is because other OEM or Avocent branded adapters will not work on the Dell switch. Also, are the adapters not showing up in the OSCAR or local menu?

Unfortunately, I'm unable to access the OSCAR menu.  I've reset the entire unit to factory defaults, and still can't get in due to there being a password which I don't know.

I was hoping to configure it through the GUI, but it doesn't look like that will be an option.  Any idea how to reset the OSCAR password?

Alright, I actually just spoke with Dell support, and I obtained the default password.  I can get the unit to detect a single SIP, but it fails to detect the others.  I'm thinking it might be an issue with the model numbers.

Dell PS/2 (WORKING) x1 unit

MP: 520-289-512

DP/N 0RF511

Avocent USB (Not working) x1 unit

MPN: 520-430-003

Dell PS/2  (Not working) x4 units

MPN: 520-289-008

DP/N: 0N3970 Rev A00

Dell PS/2  (Not working) x2 units

MPN: 520-289-007

DP/N: 0N3970

 
Any ideas?