Establishing A Data Connection - Bausch Proxima ISDN Lite Manuel D'utilisation

2.5

Establishing a data connection

In this section we shall discuss the actions needed to establish a data connection step by step. The communication software
will be dealt with broadly. The fact of the matter is that each package has its own command structure.
1. Start the communication program.
2. Make sure the software addresses the serial port to which the terminal adapter is connected.
3. Select communication speed (baud rate), the number of data bits and parity. For example: 115200 bps, 8 bits, no parity.
4. Make sure the program is in 'terminal mode', so that keyed-in characters are sent to the terminal adapter. The terminal
adapter in its turn will echo the characters to screen.
5. Then type:
The screen will show:
6. If the characters appear on screen twice, the echo in the communication program has to be switched off.
7. Select the protocol to be used. For instance, select V.120 to connect to a BBS.
Type:
The screen will show:
8. Select a telephone number by using the ATD command.
For instance, type: ATD0181 698399 (Allied Data BBS).
a. If a connection has been established, the screen will show one or two of the following messages:
CONNECT
CONNECT/ARQ
CONNECT 2400
CONNECT 2400/ARQ
CONNECT 115200
CONNECT 115200/ARQ : Error-correcting connection, 115200 bps
CARRIER 64000
PROTOCOL: V120
PROTOCOL: PPP
A B channel LED will be on to indicate that a data connection has been established.
b. If the connection fails, one of the following messages will appear:
ERROR
NO DIALTONE
BUSY
NO CARRIER
AT <Enter>
AT
OK
AT&O10<Enter>
OK
: Connection
: Error-correcting connection
: Connection, 2400 bps
: Error-correcting connection, 2400 bps
: Connection, 115200 bps
: Line speed is 64000 bps
: V.120 protocol
: PPP protocol
You have made a typing error.
The terminal adapter is not -- or not properly -- connected to the ISDN
connection (S0). For this reason, it isn't possible to call. Check to see if the
modem is connected to the ISDN net.
The number you have dialed is busy.
The number you have called doesn't support the selected protocol. Another
explanation is that there is no terminal adapter present at the number you
selected.
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