When emulating a floppy disk or RAMdisk, the data is stored in RAM on the SV1115IPEXT itself. In order to emulate a CD-ROM disk drive, a web server is required to provide the CD-ROM image data. The Web server must be accessible to the unit, which communicates with it constantly as data is needed.
Floppy mode
Choose the Format as floppy button to switch to floppy mode. Under Windows, the drive will be identified as a “high density floppy” and will typically be assigned a drive letter of B:. The capacity is limited to 1.44 megabytes in this mode. The purpose of supporting floppy mode is to permit the use of floppy-disk images generated by other systems. For example, the flash BIOS upgrade process is performed with a special floppy and is bootable. You can transfer bits from that floppy to the SV1115IPEXT (use the upload disk image form). Now, you can boot from the special floppy. In addition, emergency repair disks are often restricted to floppies.
RAMdisk mode
Choose the Format as ramdisk button to switch to RAMdisk mode. This mode is intended to facilitate simple data transfer between the remote user and the host computer. It will be recognized by Windows as an eight megabyte removable disk and assigned a drive letter. You can easily drag and drop files up to 8MB in size to this device. In Windows Explorer, you can choose the Eject option to make the data available to remote users.
Disk Formats
When you choose the Format as... button, the disk image stored in RAM is formatted as an empty MS-DOS disk, with a single file called Put files here...TXT. SV1115IPEXT is able to read most MS-DOS/Windows formatted disks and presents the files via the Web interface. However, disk emulation occurs at the lowest level so that other disk formats can be used, if you have the tools needed to create and read the disk images. At the bottom of the page are the upload and download options for the entire disk image. Any image that is exactly 1,474,560 bytes long will be treated as a floppy. Images of other sizes are supported up to 8MB.
CD-ROM Mode
The SV1115IPEXT does not store any data in this mode. Instead, it emulates a USB CD- ROM drive with a disk inserted. The data from that disk must be provided by an external web server. You will need a copy of the CD-ROM contents that you want to emulate as an ISO file. This is a byte-for-byte copy of track one (the data track) of a data CD-ROM. The ISO file must be made available on a web server that can be accessed by SV1115IPEXT. To switch to this mode, type in a URL pointing to the ISO image, and click on Commit. The system will connect to the web server and test the file for access. If successful, you will be shown a short report on the file contents, and the disk will be ready to use. Currently there is no other way to preview or browse the contents of the CD-ROM image,
