Specifications

Accessing the Boot Loader Program

The Boot Loader program can be accessed during the boot process. The main function of the program is to provide a backup

means for restoring the firmware if the SERIMUX will no longer boot. It also provides a hardware testing module that detects and

tests hardware components on the unit.

To access the Boot Loader program, do the following:

1. Connect the Ethernet cable from the console port on the rear panel of the SERIMUX to a serial port on a workstation. Use the

Ethernet cable packaged with the SERIMUX and attach the DB-9 adapter.

2. Set up a terminal emulation program, such as HyperTerminal, using the following port parameters: bps=9600, data bits=8,

parity=none, stop bits=1, and flow control=none.

3. Turn the power ON to the unit.

4. Press ESC within 3 seconds of booting the unit to get a command prompt.

5. Enter the username admin and the default password admin to access the Boot Loader menu.

Hardware Test Menu

The Boot Loader program provides a hardware test for detecting and testing hardware components on the SERIMUX. From the

Boot Loader menu, choose the number 3 to access the Hardware test. Options for several components appear.

Disaster Recovery

The SERIMUX provides a disaster recovery procedure in the event the configuration data is destroyed or corrupted. The

SERIMUX automatically restores a corrupted configuration file system to the factory default settings. However, if the SERIMUX

fails to boot in spite of being reset to the factory default settings, the firmware can be restored by using the Boot Loader program.

To restore the SERIMUX to the factory default configuration settings, the user must use a TFTP or BOOTP server. To use the

Boot Loader program to flash new firmware, do the following:

1. Connect the console port on the rear panel of the SERIMUX to a serial port on a workstation. Use an Ethernet cable with a

DB-9 adapter.

2. Set up a terminal emulation program such as HyperTerminal. Use the following port parameters: bps=9600, data bits=8,

parity=none, stop bits=1, flow control=none

3. Reboot or power ON the SERIMUX.

4. Press the ESC key within three seconds of applying power to the device.

The following screen appears.

Figure 76- The Boot Loader program

5. Choose Firmware upgrade by entering 2.

The following screen appears.

Figure 77- Firmware upgrade via Boot Loader program