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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,
Instruction Manual
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