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USER'S GUIDE
A packet is forced (in Converse Mode)
A line is completed (in Command Mode)
The packet length (See PACLEN) is exceeded
The terminal output buffer fills up
Canceling the current command or packet or typing the redisplay-line character also causes output
to resume. Type-in flow control is not used in Transparent Mode.
FLOW
Setting
ON prevents inbound or received data from interfering with your keyboard data en-
try. If you (and the person you're talking to) normally wait for a packet from the other end before
starting to respond, you can set
Some Packet bulletin board programs (PBBS) may work best with FLOW set to OFF.
Some computers with "software UARTs" may be unable to send and receive data at the
same time. If you're using that type of computer, set FLOW to ON.
FRACK
n
Mode: Packet
n
Parameters:
-
FRACK
is the FRame ACKnowledgment time in seconds that your PK-232 will wait for acknowledg-
ment of the last-sent protocol frame before resending or "retrying" that frame.
After sending a packet requiring acknowledgment, the PK-232 waits for FRACK seconds before in-
crementing the retry counter and sending another frame. If the packet address includes digipeat
instructions, the time between retries is adjusted to:
Retry interval (in seconds) =
m
(where
is the number of intermediate relay stations.)
When a packet is retried, a random wait time is added to any other wait times in use. This avoids
lockups which two Packet stations repeatedly collide with each other.
FULLDUP ON|OFF
Mode: Packet
Parameters:
ON -
OFF - Full duplex mode is DISABLED.
When full-duplex mode is disabled, the PK-232 makes use of the DCD (Data Carrier Detect) signal
from its modem to avoid collisions; the PK-232 acknowledges multiple packets in a single transmis-
sion with a single acknowledgment.
When full-duplex mode is enabled, the PK-232 ignores the DCD signal and acknowledges packets
individually.
Full-duplex operation is useful for full-duplex radio operation, such as through OSCAR 10. It should
not be used unless both your station and the distant station can operate in full-duplex.
You may also find full-duplex mode useful for some testing operations, such as analog- or digital-
loopback tests.
PK232UG Rev. B 9/86
FLOW
OFF.
Mnemonic: FR
1 to 15, specifying FRame ACKnowledgment time-out in 1 second intervals.
n
× (2 ×
Mnemonic: FU
Full duplex mode is ENABLED.
Default: 3
m
+ 1)
Default: OFF
6-41
COMMAND SUMMARY
143
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