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THSHELP.MSG
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1991-10-18
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``CONNECT
The CONNECT command is used to initiate a link connection. A CONNECT
command may be issued on a channel already in use to change the
digipeater callsigns, but not the destination callsign. A CONNECT
command issued when channel 0 is selected sets the unproto path.
``DISCONN
The DISCONN command is used to initiate a link disconnection. If
there is unsent or unacknowledged information remaining, the
disconnect request frame will not be sent until all information has
been transmitted and acknowledged. No additional information will be
received after the DISCONN command has been issued. A second DISCONN
command may be entered to force the transmission of the disconnect
request frame before all information has been sent and acknowledged.
A DISCONN command issued during the establishment of a link or after
a disconnect request frame has been transmitted will cause an
immediate return to the disconnected state. A DISCONN command issued
on a disconnected channel will re-initialize the connection dependent
parameters to the values stored in channel 0.
``FRACK
The FRACK command is used to set the frame acknowledgement interval.
This interval is used to compute the timeout interval before a packet
is retransmitted, using the formula:
time (seconds) = frame ack * (2 * number of digipeaters + 1)
A separate frame acknowlegement interval value is maintained for each
connection channel. The value stored in channel 0 is used to
initialize each connection channel upon power up or disconnection.
``MYCALL
The MYCALL command is used to set the tnc source callsign. The
initial value is all blanks. Changing the tnc source callsign while
connected is not permitted. If the tnc source callsign is left blank,
the tnc will not allow connect commands or unproto transmissions. The
callsign stored in channel 0 is used to initialize each connection
channel upon power up or disconnection.
``MONITOR
The MONITOR command is used to set the frame monitoring mode. The
command parameter determines the types of frames monitored, and is a
list of desired frames chosen from the letters in the following
table:
LTR FRAME
--- -----
N None
I I frames
U UI frames
S Supervisory frames
+ Call signs to be included (maximum of 8)
- Call signs to be excluded (maximum of 8)
The '+' and '-' parameters may not be used together. If either is
used, it must be the last parameter (followed by one to eight
callsigns, if applicable). If no list of callsigns is specified to be
included or excluded, all callsigns will be candidates for
monitoring. Entering a '+' or '-' with no callsigns will empty the
list.
``RETRY
The RETRY command is used to set the maximum number of times a frame
will be transmitted without receiving an appropriate acknowledgement,
before a link failure is assumed. A separate maximum number of tries
value is maintained for each connection channel. The value stored in
channel 0 is used to initialize each connection channel upon power up
or disconnection.
``MAXFRAME
The MAXFRAME command is used to set the maximum number of
unacknowledged I frames that may be outstanding at any one time. A
separate maximum number of unacknowledged I frames value is
maintained for each connection channel. The value stored in channel
0 is used to initialize each connection channel upon power up or
disconnection.
``PERSIST
The PERSIST command is used to set the p-persistence value.
P-persistence is used during simplex operation as a means of channel
arbitration. Whenever there are frames to be transmitted, the
tnc first waits for a clear channel. Once the channel is clear, a
random number between 0 and 255 is generated. If the random number
is less than or equal to the p-persistence value, the PTT line is
asserted and transmission begins. Otherwise, the tnc delays for the
slot time interval set by the SLOTTIM command and the entire process
is repeated.
``DIGIPEAT
The DIGIPEA command is used to enable or disable the digipeating of
frames.
``TXDELAY
The TXDELAY command is used to set the transmitter keyup delay
interval. The parameter is specified in 10ms increments.
``UNATT
The UNATT command is used to enable or disable unattended modes and
optionally set the connect message string.
``AX25LVL
The AX25LVL command is used to select whether version 1 or 2 protocol
will be used to initiate a link connection. A separate protocol
version value is maintained for each connection channel. The value
stored in channel 0 is used to initialize each connection channel
upon power up or disconnection. Interrogating this parameter during a
connection will reflect the protocol version currently being used on
that channel. Changing the protocol version during a connection is
not permitted.
``SLOTTIME
The SLOTTIME command is used to set the p-persistence slot time
interval. P-persistence is used during simplex operation as a means
of channel arbitration. Whenever there are frames to be transmitted,
the tnc first waits for a clear channel. Once the channel is clear,
a random number between 0 and 255 is generated. If the random number
is less than or equal to the p-persistence value set by the PERSIST
command, the PTT line is asserted and transmission begins. Otherwise,
the tnc delays for the slot time interval and the entire process is
repeated. The parameter is specified in 10ms increments.
``XMITOK
The XMITOK command is used to enable or disable the transmitter PTT
line.
``FULLDUP
FULLDUP is used to enable or disable full duplex operation of the
HDLC port.
``RESPTIME
The timer intervals are specified in 10ms increments. This timer (T2)
controls the amount of delay between the time an information frame is
received and the time the resulting response frame is sent. This
delay allows multiple frames to be acknowledged with a single
response.
``IDLETIME
This timer (T3) is used maintain link integrity. If there is no
activity during the T3 interval, the tnc will poll to verify the
distant station is still connected.
``VALIDATE
The VALIDATE parameter is used to enable or disable callsign
validation.
``MHEARD
The MHEARD command is used to enable or disable the updating of the
heard-list, or to clear the heard-list.
``TIMSTAMP
The TIMSTAMP command is used to define which messages get a time
stamp, or to disable time stamping at all. You can timestamp link
status messages only, or link status messages and monitored frames.
THS defaults to timestamping link messages when started.
``HBAUD
The HBAUD command is used to select the HDLC baud rate. Note however
that the modem normally determines the baudrate which must be used.
You must next issue a RESET command (in the THS parameter menu) to
make the change effective.
The codes are:
0 = external clk 4 = 4800 baud
1 = 300 baud 5 = 9600 baud
2 = 1200 baud 6 = 19200 baud
3 = 2400 baud 7 = 38400 baud
``MCON
The MCON command is used to enable or disable monitoring when
connected. The MONITOR command of the TNC Parameter Setup Menu
(called with ALT/P) defines which type of frames are monitored, and
the TIMSTAMP command defines if these frames are time-stamped or not.
When started, THS defaults to disabled.
``BELL
The BELL command is used to enable or disable the bell (for connected
messages only). A monitored 'bell' character will never ring the
bell. When started, THS defaults to enabled.
``CBELL
The CBELL command is used to enable or disable if the bell rings
whenever you get a connect.
When started, THS defaults to enabled.
``PAKLEN
This defines the maximum packet length for frames sent with the
binary transfer (YAPP) mode.
When started, THS defaults to the maximum value of 254 bytes.
``MAXPFRAM
This parameter defines the maximum number of frames which THS sends
to the TNC. It is the sum of the number of frames transmitted but not
yet acknowledged and the number of frames waiting in the TNC (but not
yet processed by the TNC software for transmission). THS stops
sending frames to the TNC when MAXPFRAM is reached. You can see the
actual values the status line (NSENT and UNACK).
When started, THS defaults to the maximum value of 20.
``MSTAMP
The MSTAMP command is used to enable or disable time-stamping of
monitored frames. Note that link-status messages (like "CONNECTED to
...") are always time-stamped.
When started, THS defaults to disabled.
``RESET
The RESET command is used to reset the PC*Packet Adapter. When you
changed the HBAUD value (HDLC baudrate), you must issue the RESET
command to make the change effective. After a reset, THS re-loads the
default parameter set, followed by commands contained in the %-lines
of the configuration file (this is the same procedure as during the
THS start).
``TNCW
Connect Cs1 [Cs2 ... Cs9] Connect path
Disconne Disconnect
FRack 1-15 Frame acknowledge (seconds)
MYcall Cs Tnc source callsign
Lstatus [0-4] Display channel status
Monitor NIUSC+- Monitor mode
REtry 0-127 Number of tries (0=forever)
MAXframe 1-7 Number of outstanding I frames
PErsist 0-255 P-persistence value
DIGIpeat 0/1 Repeater disabled/enabled
TXDelay 0-127 Transmitter delay (10ms)
Unatt 0/1 [text] Unattended mode disabled/enabled
Ax25lvl 1/2 Version 1/2 protocol initiated
DWait 0-127 Slot time interval (10ms)
XMItok 0/1 Transmitter PTT disabled/enabled
FUlldup 0/1 Full duplex disabled/enabled
RESptime 0-999 Timer T2 interval (10ms)
IDLEtime 0-65535 Timer T3 interval (10ms)
VALIdate 0/1 Callsign validation disabled/enabled
BUffers Display number of free TNC buffers
State Display current link state
``WORDWRAP
The WORDWRAP command is used to enable or disable word wrapping in
the lower (TX) window. The default is wordwrap on.
``MWINDOW
The MWINDOW command is used to define the window which receives all
moitored frames. By default, this is window 0. You can select a
another window here if you wish to see all monitored frames there.
``FILTER
The FILTER command is used to enable or disable character filtering
in the receive windows. If FILTER is disabled, you will see all
bytes, and according to the character set of the PC, non-ASCII
characters are displayed as graphic characters. If filtering is
enabled, only the characters with byte values in the ranges 0x09 to
0x0D and 0x20 to 0x7E are displayed, this is (most of) the (US-)
ASCII character set. All other characters are substituted by a small
solid rectangle. Note that if you use a national language character
set where the language dependend special characters have byte values
greater than 0x7F, FILTER must be disabled (which is the default).
``EDI
ESC Exit the editor. You get the option to save the
file to disk. If you don't, calling the editor
again will place you exactly where you left.
INSERT KEY Toggles insert and overwrite modes
F8 Toggles whether carriage returns are symbolically
displayed in the edit window
F9 Toggles editor display from 128 ASCII characters
to 256 IBM characters
UP-ARROW Moves cursor up a line
DOWN-ARROW Moves cursor down a line
LEFT-ARROW Moves cursor left a space
RIGHT-ARROW Moves cursor right a space
^LEFT-ARROW Move cursor one word to the left
^RIGHT-ARROW Move cursor one word right
^Y Delete line cursor is on
^Z Scroll up a line
^W Scroll down a line
PGUP Previous page
PGDN Next page
HOME Move cursor to beginning of line
END Move cursor to end of line
^PGUP Move to beginning of file
^PGDN Move to end of file
^HOME Move to top of screen
^END Move to bottom of screen
TAB Tab
ALT_M Begin marking a block of text. Use cursor arrows to
mark rest of block
ALT_C Copy marked block to scrap
ALT_X Cut marked block to scrap
ALT_P Paste scrap at cursor position
ALT_S Search for pattern