User's Manual

CHAPTER 3
Operations at the Application Level
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10. After a series of messages, the system asks for confirmation.
Press Y. The system software will now be replaced. The
procedure can take several minutes.
Note: Do not switch the system off during this time!
11. When the procedure is finished and you see the hermit>
prompt again, restart the gateway by typing
linux
12. While the system is booting, return your terminal’s speed to
19200.
After Linux finishes booting, the gateway is again ready for use.
Operations at the Application Level
The gateway currently has only one factory-installed application,
the emu3ap application (an emulator of the A730SD receiver).
Using this application puts you in an environment almost identical
to the A730SD receiver.
You can access the emu3ap application in either of these ways:
• Log in as user adv and you are automatically dropped to an
emu3ap shell.
• Log in as root and, at the Linux prompt, type
emu3ap
In either case, you need to press Enter until you get a message
stating that you are in the emu3ap command line interpreter (CLI).
Note: You can reach the gateway over the serial port or over the
built-in modem. If the network is enabled (this operation is
not described in this manual), you can also reach it over eth-
ernet. You can have several emu3ap processes running at
the same time.
Although the emu3ap software and the A730SD are very similar,
there are some slight differences in that some commands were
eliminated and other features were added.
Commands Accepted by the emu3ap Emulator
As with the A730SD, the emu3ap software supports four different
classes of commands: