Adcon A720 Betriebsanweisung PDF herunterladen (Seite 59)

CHAPTER 3

Operations at the Application Level

procedure is finished, after which you must change the

speed of your terminal back to 19200 baud.

9. The system waits for a file to be sent using the Y-modem

protocol. Configure your terminal program to send via the Y-

modem protocol, switch your communication program to

Send, and send the .img file from your computer. The

download can take several minutes.

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

From a telemetry point of view, the A840 Gateway has two

interfaces to the outer world:

•Through 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 interface over the serial line or via telnet.

• The addUPI interface (Adcon URL Programming Interface),

which is an http-based communication specification. This

interface is accessible only over the network (port 80).

The addUPI interface is described in a document that you can

request at no cost from Adcon Telemetry GmbH. The current

firmware implements the addUPI specification 0.92 (notifications

are not yet implemented).

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.

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Adcon A720 Betriebsanweisung Seite 59