Timewave PK-232MBX, Руководство по эксплуатации, Страница: 56 / 231

PK-232 MBX – OPERATING MANUAL PACKET-RADIO
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4.5.6
CHECK and RELINK
If someone connects to you and then turns his TNC off, you would probably not want to
stay connected to the station forever. The CHECK timer determines the amount of time
the PK-232 will wait before testing the link if no data has been sent or received.
The RELINK command sets what happens after the CHECK timer has expired. If RELINK is
OFF, the PK-232 will change to the Disconnected state. If ON, the PK-232 will attempt to
reconnect to the distant station.
4.6
Multiple Connection Operation
Since Packet-Radio allows many stations to share the same channel, many QSOs can be
going on at the same time. Because Packet-Radio has this channel sharing capability, there
is no reason you cannot converse with more than one station at the same time. Being con-
nected to multiple stations at once is a powerful feature of your PK-232.
4.6.1 Multiple Connection Description
The PK-232 offers ten logical channels, each of which can support one conversation. In ef-
fect, multiple connect operation is much like a ten-line telephone with automatic "hold".
When you are connected to multiple stations you will automatically receive everything
sent TO you. You must select the proper channel (in effect push the proper line button on
the telephone) to send data to a particular station.
If you are using an AEA PAKRATT program, this is described in the program manual. If
you are using a terminal, the rest of this section will describe how to set up the PK-232
for multiple connections.
4.6.2 The Channel Switching Character
The logical channels are selected with the CHSWITCH character. You must choose a
CHSWITCH character that you do not normally type such as the vertical bar "|" (ASCII
$7C), or the tilde "~" (ASCII $7E). Once this has been selected and entered into the PK-
232, you may initiate multiple connections with others on your radio channel.
You can now initiate connects on any of the logical channels numbered zero through nine
(0-9). To change logical channels, press the CHSWITCH character you just defined, and
then a number from 0-9. Remember that the test that you type will only be sent out to
the station connected to the logical channel your PK-232 is currently on.
4.6.3 Will You Accept Multiple Connects?
Setting the CHSWITCH character only allows you to make outgoing multiple connects. To
set your PK-232 to allow incoming multiple connections, you must set the USERS parame-
ter to more than 1 (one). The number you enter in the USERS command tells the PK-232
how many other users you will allow to connect to you at on time.
4.6.4 Display Multiple Connected Callsigns
Multiple Connection operation can be confusing – especially remembering who is con-
nected on what channel. To help this, you may want to turn ON the CHCALL command to
display the callsign of the station who is connected to you on a given channel number.