Dell PowerConnect 3248 System User's Manual

Also see for PowerConnect 3248: Manual Features list Specification

7. Set your computer's terminal emulation software to match the 115200 baud rate. Press to reset communications with the switch.Select>Change baudrate [A]9600 [B]115200Baudrate set to 1152008. Before you download the firmware, ensure that the switch has sufficient flash memory space for the new code file.You can store up to two runtime and two diagnostic code files in the switch's flash memory. Use the [D]elete File command to remove a runtime ordiagnostic file that is not set as the startup file (the S/Up setting for the file is 0).9. Press to download the new code file.If you are using Windows HyperTerminal, click Transfer and then click Send File. Select the XModem Protocol and use the Browse button to find therequired firmware code file on your computer.The Xmodem file send window displays the progress of the download procedure.10. After the file has been downloaded, press for runtime code or for diagnostic code when Update Image File: appears.11. Specify a name for the downloaded code file. Filenames can be up to 32 characters, are case sensitive, and cannot contain spaces.The following figure shows an example of the download procedure for a runtime code file:Select>xXmodem Receiving Start ::[R]untime[D]iagnosticUpdate Image File:rRuntime Image Filename : run_10030Updating file system.File system updated.[Press any key to continue]12. To set the new downloaded file as the startup file, click the [S]et Startup File menu option.13. When you have finished downloading code files, click the [C]hange Baudrate menu option to change the baud rate of the switch's serial connectionback to 9600 baud.14. Set your computer's terminal emulation software baud rate back to 9600 baud. Press to reset communications with the switch.15. Press to quit the firmware-download mode and boot the switch.Technical SpecificationsNOTICE: The download file must be a PowerConnect 3248 binary software file from Dell.StandardsEthernet types supported IEEE 802.3 Type 10Base-T, IEEE 802.3u Type100Base-TX, IEEE 802.3z, IEEE 803.abOther standards supported IEEE 802.3x, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p,IEEE 802.3ac, IEEE 802.3adInterfaces10/100BASE-TX ports 4810/100/1000BASE-T ports 2SFP transceiver slots 2RS-232 connector 1IndicatorsSystem LEDs 3Port LEDs:10/100BASE-TX ports 1 per port10/100/1000BASE-T ports 1 per portSFP transceiver slots 1 per slotPowerInput 100-240 VAC 50-60 Hz