RAD Data comm Vmux-210 Specifications Page 128

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Chapter 4 Configuration Installation and Operation Manual
4-60 Additional Tasks Vmux-210 Ver. 1.1
other – as backup partition (usually partition 0). The active partition is
decompressed and loaded into the Vmux-210 RAM upon power-up. The backup
file is used whenever the active file is missing or corrupted.
Boot Sequence
Vmux-210 boots up automatically. After power-up, no user intervention is
required, except when the user wants to access the file system to modify or
update the Vmux-210 application software.
The following is a description of the boot sequence. If the system is working
normally, the entire process is completed within two minutes.
1. The boot program searches for the active partition in the file system. If the
file exists, the program continues.
If the file does not exist, the boot program searches for the backup file. If the
backup is found, it is used instead of the active partition, and the boot
process continues.
If there is no backup file, you must download a file via the XMODEM protocol.
The received file is saved as the active file in the file system.
2. Active and backup partitions are compressed and automatically
decompressed into the RAM before execution begins.
3. After decompression, the Vmux-210 software starts to execute and the user
can begin working.
Accessing the File System
The file system menu is an option that allows the user to perform basic file
transfer operations. These operations are all optional.
When working with the File System menu, configure the ASCII terminal rate to
115.2 kbps.
To access the File System menu:
Press <Enter> several times immediately after powering Vmux-210 up.
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