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Lightwave Communications USB SERVERSWITCH
Page 24 of 25 December 2001
Materials:
1. Laptop or other computer with RS-232 serial I/O port
2. Serial cable with DB9 male end and mating connector for the above
computer's serial port
3. Communications software capable of XMODEM uploads
4. USB ServerSwitch software update file
Flash Update Steps:
1. Download the FLASH file for the USBSS from the Lightwave FTP site
to your Laptop or computer.
2. Connect the computer's serial port to the CONTROL IN port of the
USB ServerSwitch. [If the unit had been cascaded with other units,
the cascade connections must be broken. Each USBSS unit must be
updated individually.]
3. Start the communications software. Configure the communications
parameters to 38,400 baud, 8 data bits, no parity, 1 stop bit, and DTE
(38.4K 8N1 DTE). Select the correct serial port (i.e., COM1) as the
I/O port if not already selected.
4. Access the USBSS's System Setup menu by pressing Cntl-Cntl on
any attached keyboard, or pressing the Scroll Lock key twice.
5. From the System Setup
System SetupSystem Setup
System Setup menu, press the <F1>
<F1><F1>
<F1> key to access the
defaults/flash update menu. Press the F
FF
F key to start the FLASH
update mode of the USB ServerSwitch. To interrupt the FLASH
update mode, turn the USBSS power off and back on.
6. Begin uploading the flash update binary file from the computer
attached to the CONTROL IN port to the USB ServerSwitch. Once
the F
FF
F key has been pressed, the USB ServerSwitch sends a
message through the serial port prompting the Terminal program to
send the binary update file.
7. The user selects the Flash file on the computer. It is assumed that
the file transfer begins, although there is no visible confirmation
through the user's computer screen that the flash update has begun.
After about two minutes, the file upload (from PC to USBSS) is
completed. If no response after 5 minutes, you must start over.
USB ServerSwitch Boot v1.00
Copyright 2001 by Lightwave Communications Inc.
Start XMODEM transfer of USB ServerSwitch flash memory
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