Premier Mounts CDM-600 사용자 설명서

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14–1 
Chapter 14.  FLASH UPGRADING 
 
The CDM-600 eliminates the need for updating firmware by physically replacing 
EPROMs. Instead, the CDM-600 modem uses ‘flash memory’ technology internally, and 
new firmware can be uploaded to the unit from an external PC, as follows: 
 
 
Go to: www.comtechefdata.com 
 
Click on: downloads 
 
Click on: flash upgrades 
 
This makes software upgrading very simple, and updates can now be sent via the Internet, 
E-mail, or on disk. The upgrade can be performed without opening the unit, by simply 
connecting the modem to the serial port of a computer.  
 
The cable to connect the PC to the modem is the same as is used for normal  EIA-232 
remote control, and comprises 3-wires between 9 pin ‘D’ type female connectors. This is 
shown in Appendix A. 
 
Comtech EF Data will distribute a free software utility, that is designed to run under 
Windows 95/98
 or Windows NT. This utility program is called 600Flash.exe, and 
should be copied to the user’s computer hard disk. Along with this, the user will receive 
the latest firmware file (for example, F1422AD.ccc), which the user should copy to the 
same sub-directory (folder). 
 
Before initiating uploading, the 25-pin data connector should be disconnected from the 
modem. The user then connects the modem remote control port to an unused serial port 
on the user’s computer, and executes the program. The user should follow the 
instructions presented on the screen, and the upload will take place automatically. 
Following the successful upload process, the modem will automatically re-start, running 
the new version of firmware. During this process, the non-volatile RAM, storing the 
configuration of the modem, will be erased, so the user is then required to re-enter the 
desired configuration parameters.