Cabletron Systems 2H23-50R, 2H33-37R manual Switch definitions and positions are as follows

Removing the Chassis Cover

Flash

TOP VIEW WITHOUT COVER

Primary	Redundant
Power	Power
Supply	Supply

MODE SWITCH BANK

8 7 6 5 4 3 2 1

OFF

ON

DRAM

FRONT PANEL 22861-05

Figure C-2 Mode Switch Location/Component Layout

Switch definitions and positions are as follows:

•Switches 1 through 4 – For Cabletron Systems use only.

•Switch 5 – COM Port Autobaud. The default (OFF) position enables Autobaud sensing on the COM port for Local Management sessions. Changing the switch to the ON position disables Autobaud sensing and sets the COM port to 9600 baud for Local Management sessions.

•Switch 6 – Forced BootP. Do NOT attempt a Forced BootP unless a BootP server has been configured for the 2H23-50R or 2H33-37R. The BootP server references the location of a station acting as a Trivial File Transfer Protocol (TFTP) server containing the image file. When the position of Switch 6 is changed and the power is cycled to the device, the device requests the image file location from the BootP server and uses TFTP to download the image from the TFTP server. If one of these requirements is not met, the device continues to request either the BootP server or the TFTP server until the RESET button on the device is pressed. Once the RESET button is pressed, the device resets after one minute and loads the image stored in FLASH memory.

2H23-50R/2H33-37R User’s Guide C-5