Kantronics KPC–3 Plus User Manual page 153

AN6, input (6), is intended for internal use. It reports the current status of the RTS pin for the
serial port, which is either 0 (or near 0) for logic low or 255 (or near 255) for logic high.
AN7, input (7), is intended for internal use. It reports the current status of the DTR pin for the
serial port, which is either 0 (or near 0) for logic low or 255 (or near 255) for logic high.
Data can be gathered from a remote site by connecting to MYREMOTE and then
issuing the ANALOG command.
See also: range, telemetry, myremote
AUTOLF {ON | OFF}
default ON
When ON, a line feed is sent to the terminal after each carriage return. This parameter
should be set on when overprinting occurs and the terminal being used does not
automatically supply its own linefeed after a carriage return. This command affects only
the data sent to the terminal, not data sent to the radio.
See also: cr, lfadd
AX25L2V2 {ON | OFF}
default ON
This command provides compatibility with all known packet units implementing AX.25
protocol. When ON, Level 2 Version 2 protocol is implemented and the TNC will
automatically adapt to whichever version the connecting station is using. When OFF,
Level 2 Version 1 is implemented. Set this command to OFF if you need to digipeat
through other units, which do not digipeat version 2 packets. You may also find benefit
from setting this command OFF when using several digipeaters (not nodes) to send
packets, or when conditions are marginal between the two stations involved. (NOTE:
Changing this setting after connecting to another station will have no effect on the
current connection.)
The major difference in V1 and V2 protocol is the method used to handle retries. In the
connected mode, if a packet is sent and not acknowledged, Version 1 will re-send the
entire packet and then disconnect if the RETRY count is reached. Version 2 will first
send a poll, the response to this poll will determine if the packet was received. It is
possible that the ack was collided with and therefore the data packet does not need to
be resent. If the ACK shows that the data packet was not received, it will be re-
transmitted. Each time a poll is answered the TRIES count is reset to 0. If the RETRY
count is reached, version 2 will attempt to re-connect unless RELINK is OFF. If the re-
connect attempt is unsuccessful, then version 2 will issue a disconnect.
See also: relink, retry, tries
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