Hello my problem is have I reset the password the super user a switch enterasys A2H124 - 24

try to factory reset it

let me see what i can do
maybe something here.
http://www.enterasys.com/support/index.aspx

And the next question will be what is the admin password?
Why not use the manual, or google and have everything solved in minutes.

Kindly try it again as you need to keep that button pressed for about 10-30 seconds you may not be pressing it for long enough.

Verify that the correct settings and cable/connectors (rollover cable, correct COM port specified) are being used when establishing the console connection.

From the manual-

3.9.2 Connecting to an IBM or Compatible Device

To connect an IBM PC or compatible device, running the VT terminal emulation, to an
Enterasys Networks module Console port (Figure 3-20), proceed as follows:
1. Connect the RJ45 connector at one end of the cable (not supplied) to the Console port on the
Enterasys Networks module.
Connecting to Console Port for Local Management
Hardware Installation 3-31
2. Plug the RJ45 connector at the other end of the cable into the RJ45-to-DB9 adapter (supplied
with the device).
3. Connect the RJ45-to-DB9 adapter to the communications port on the PC.
4. Turn on the PC and configure your VT emulation package with the following parameters:

Parameter Setting
Mode: 7 Bit Control
Transmit: Transmit=9600
Bits Parity: 8 Bits, No Parity
Stop Bit: 1 Stop Bit

source: Install Guide for Enterasys 1H582-25 / 1H582-51 (http://www.retrevo.com/support/Enterasys-1H582-51-Switches-manual/id/2785dj098/t/2/)

There should be a reset button on the back, that will remove everything on it. You will need a pen or sharp object to push down the reset button.

Before trying anything too drastic, I'd try using the username "admin" without the quotes and leaving the password blank. If that doesn't work, then you'll have to use the reset switch that's located on the back of the switch (number 1 in the pic below).

The following steps are taken from the manual for the switch.
1. Press-and-hold the reset switch while the switch device is operational. This change of the login password to the default password will be indicated through CLI only.
2. Logon the device management. You can now logon to the switch through the console port and assign a new password using the command line interface (CLI).

only thing i ran into was this: try it.
Default Password for APC Smart UPS

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Description
Manufacturer APC Protocol Multi Access Admin Model Smart UPS User ID apc Password apc

You can only reset to default. Download here the manual and follow the instructions (Reset Switch)

http://secure.enterasys.com/support/manuals/hardware/4099_05.pdf