COMMANDS
48
SWDETLed
ON | OFF
default OFF
KPC-1
Packet
***
DO NOT turn ON this command unless you have completed the SWDETLED Modification as
detailed in the Installation Manual.
***
When ON (BE SURE YOU HAVE DONE THE REQUIRED HARDWARE MODIFICATION), the RCV LED
will light to indicate that carrier is being detected by the software carrier detect routine. When
OFF, the RCV LED will not light under any circumstance.
See also: cd
SWp
u,d,t
V 3.0
default 17,17,108
KPC-1
/
KPC-2
/
KPC-2400
default 25,8,70/17,17,108
KAM
default 17,17,108/17,17,108
KPC-4
This command sets the parameters used by the TNC for software carrier detect. The first number
(u) is used to increment a counter when a valid mark/space or space/mark transition occurs in the
received signal (i.e. transition occurs at the beginning of a bit time). The second number (d) is a
penalty subtracted from the counter when a transition occurs in the middle of a bit time. The t val-
ue is the threshold value – when a counter total reaches this value, the carrier detect will be set
true. Once carrier detect is active, the counter must drop to 0 before carrier detect is again made
false.
See also: cd
TRACe
ON | OFF
default OFF
All units
Packet
When ON, all received frames are displayed in their entirety, in hexadecimal, including all header
information. All packets which are also eligible for monitoring will be displayed in normal text.
Trans
immediate
All Units
Packet
This command causes immediate exit from Command Mode into Transparent Mode. The current
link state is not affected. The 8th bit is sent out as received from the terminal, no matter how
8BITCONV and PARITY are set. Parity settings in the sending and receiving computers should be
set the same for meaningful communications. There are no special editing characters, all charac-
ters are sent out as received. To get out of Transparent, send the TNC a modem break, or see
CMDTIME for a special sequence. This mode is effective for file transfers, but would not normally
be used for chit-chat.
See also: cmdtime