Specifications

MBX lets
you
read
or
record
useful or
needed
data
without having to connect
or
log
on to
the source
station(s). MBX fllters the received
packet
data
so that only
packets
from the selected station(s) entered
above are shown, without headers
or
repeated
fiames. MBX overrides
normal
monitor
functions and can
show one or
both sides of a conversation.
The operation
of
MBX
command
is
as
fbllows:
MBX NONE All monitored frames are shown with their headers.
MBX ALL
Only the data flelds in the I-frames and UI fiames are shown.
Data fiom retried lramcs
will
be shown each
time such
a fiame
is monitored. The MFROM and MTO commands
are active.
Only the data in the I and UI fiames to or fiom calll are shown. calll can be
either the
source
or
destination
station.
Retried fiames are not shown. The MFROM and
MTO
commands are
ignored.
MBX
calll
MBX calll,call2 Only the data in the I and UI fiames
are shown
when calll is the source and call2
is
thc
destination or vice-versa. Retried frames aren't shown.
The
MFROM and
MTO com-
mands are ignored.
A packet
connection on any
channel
inhibits monitoring
if MBX
isn't
set to
NONE
MCON only
works il'
MBX is
set to NONE
Clear
MBX with
o/o,
&, N, NO, NONE, or OFF as arguments.
MCon n
Mode:
packet
Default: 0
(none)
Host: MC
"n"
0 to 6 signifies
various
levels
of
monitor
indications.
MCON works
similarly to MONITOR, but MCON
allbcts
your
display only while
you're
corurcctetl
to tut-
other station Ii MCON is set to a value
between / and 5, frames meant fbr
you
are displayed
as though
MONITOR
was
OFF-you'll see only the data and not
any
header infbrmation. With MCON
6
fiamcs
meant lbr you
are displayed as any other monitorcd liame-the headers
appcaf
with
thc data.
Starting with
0, as
you
increase the value
of n the more
"stuff'will
be visible with each
packet you
receive:
0 You won't monitor
any
packets
while
you're
connected.
1
Only unnumbered
(UI)
frames resulting liom
an unconnected transmission are displayed. Use
this
for an
"unproto;'roundtable-type
conversation where
you
want
to
read another station's
packet
text-sent unproto-while
you're
connected. This setting also displays beacons.
2
Numbered
(I)
frames are also displayed.
Use this to
monitor
connected conversations
in
progress
outside
your
own.
-3
Connect request
(SABM
or
"C")
frames
and disconnect
(DISC
or "D") frames are also displayed
with the headers.
4
Unnumbered acknowledgment
(UA)
of connect- and disconnect-state
frames
are
also displayed
with either the
characters
"UA"
or
"DM"
and a header.
5
Receive
Ready
(RR),
Receive Not Ready
(RNR),
Reject
(RI),
Frame Reject
(FRMR)
and
(l)
Frames
are
also
displayed.
6 Poll/Final
bit,
PID
and sequence numbers are also displayed.
See MONITOR about monitoring packets
while
you're
nol connected.