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Appendix A – Flash Upgrade 
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 
172
 
 
Prerequisite 2 – Serial Port Configuration  
The default serial port parameters should be: 
Data length – 8 bits 
Parity – None 
Stop bits – 1 
Baud-rate of the serial port to which the MultiConnect Adapter is connected should be set 
to 115200 bps for proper operation. 
Prerequisite 3 – Enabling TFTP Server  
Enable TFTP server on MultiConnect Adapter by issuing the following command: 
# set ip tftp enable 
OK 
 
 
Serial Flash Upgrade Scenario 
Following steps explain the procedure to upgrade a flash using the serial COM port (serial flash upgrade). 
Connect the MultiConnect Adapter to a PC COM Port. 
• 
Open an application through which we can access the serial device(e.g., Meterm, zoc, 
hyperterm). 
• 
Reboot the MultiConnect Adapter. 
• 
Wait for the boot message and prompt “press d to download” to appear. 
• 
Press d when prompted. 
• 
Select the XMODEM Protocol from the Terminal application.  
• 
Choose a file (MTXCSEM-TFTP-…) file to be uploaded. 
• 
Perform a file upload. 
 
 
 
The MultiConnect Adapter reboots and will be up after a few seconds (10-15 secs). 
 
The MultiConnect Adapter reboots after it has been successfully upgraded.