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USER'S GUIDE
5.5.4.5.
MAXFRAME
The AX.25 protocol permits the transmission of several packets without waiting for an
acknowledgment. The number of packets that can be sent before acknowledgment is
known as the "window". The window concept permits more efficient channel use if
large amounts of data are being transferred.
MAXFRAME
The
send before waiting for acknowledgment. (This doesn't mean that your PK-232 will wait
until several packets have been typed before transmitting.)
MAXFRAME
ber of characters in a packet), determines how much information can be sent in a sin-
gle burst transmission. The best combination for efficient data transfer depends upon
channel quality and the rate at which the terminal can process data.
For a 1200-baud terminal rate, begin with a combination that produces about 300 char-
acters outstanding at one time.
5.5.4.6.
CHECK
CHECK
The
tervals. This timeout function prevents your PK-232 from remaining connected to a dis-
tant station when the other station disappears for longer than the specified time. Your
PK-232 uses this time somewhat differently, depending on the setting of AX25L2V2.
AX25L2V2
If
reconnect call; the PK-232 returns to the "connect-in-progress" state and sends connect
request (SABM) frames. In addition, the PK-232 adds a random time of up to 30 sec-
onds each time
5.5.4.7.
RESPTIME
RESPTIME
The
mission of the acknowledgment packet. This delay is used to prevent collision between
an acknowledgment and another packet from the sending station.
necessary in file transfers. For normal service,
station sending the file.
The station receiving the file in a file transfer should set
12.
5.5.4.8.
PACTIME
PACTIME
The
can choose the way packet transmission is timed. It's best to send packets at regular
intervals if you're typing manually to a remote computer.
If your computer is operating a remote-host or bulletin board program, send packets
after an interval without further input from the host or computer.
CPACTIME
Use the
PK232UG Rev. B 9/86
command sets the maximum number of packets which your PK-232 will
, in combination with the
command sets a connection timeout specified in multiples of ten-second in-
OFF
is
(a pre-Version 2.0 connection), the link is preserved by initiating a
CHECK
occurs in a given connection.
command sets the delay between the receipt of a packet and the trans-
command sets packets transmission timing in the Transparent Mode. You
command to enable
PACLEN
command (which sets the maximum num-
RESPTIME
PCTIME
in Converse Mode.
5-11
ADVANCED PACKET OPERATION
RESPTIME
is mainly
is best set to 0 (zero) by the
RESPTIME
to 10 (default) or
102
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