Kantronics KAM 98, Руководство пользователя

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tion” station KBØNYK using an intermediate station
NØGZZ as a repeater station to carry the information be-
yond the range of the originating station and into the
range of the destination station.
Step 3. The “connect” command with address given to the TNC
causes the TNC to formulate a “request to connect” mes-
sage that is sent from WØXI. If this message is detected
by the specified intermediate station (i.e., NØGZZ), re-
peated, and then detected by the destination station
(i.e., KBØNYK), a connection may be established.
To confirm a connection, the destination station automat-
ically sends a special message back, via the same path
(in reverse order), to the originating TNC.
When this “confirmation of connection” is processed by
WØXI’s TNC, the TNC assumes that the operator wants
to begin sending messages. So the TNC: (1) puts a mes-
sage on the computer monitor confirming that WØXI is
now connected, through intermediate station NØGZZ, to
KBØNYK, (2) turns ON the “connected” indicator on
the TNC, which stays ON as long as the connection is in
effect, and (3) switches itself from taking commands
from the computer (i.e., TNC in “command mode”) to
serving as a message-processor, sending and receiving
messages to and from the connected stations (i.e., TNC
in “conversation mode”).
Step 4. Now that WØXI is in “conversation” mode, the operator
types in the message, “HELLO”, and presses the
ENTER key on the computer to indicate the end of the
message and the beginning of the message’s journey.
Step 5. The computer sends the message, “HELLO,” to the TNC
for processing.
Packet Communication Introduction
KAM’98 v 8.3 25 User’s Guide