COMMAND EXAMPLE : ATV2LIFXSL- SETS THE LOCAL INTERFACE OF CHANNEL 2 TO FXS
WITH LOOP START.
FOR HELP ON A SPECIFIC COMMAND, ENTER ATH FOLLOWED BY A COMMAND LETTER.
5.2.2
Channel Parameter Commands
Channel Off
The
channel
off
command
turns
the
selected
channel
off.
This
Command
command turns off a particular channel or all channels depending
on the command. This
allows
the
more
efficient
use
of
the
B0
dynamically allocated buffers and allows the multiplexer to skip
the scanning of unused
channels.
Baud Rate
The
Bxxxxx
command
selects
the
bps
rate
on
the
indicated
Select
channel. The channel bps rate is from 300 bps to 19.2K bps
Bxxxx
Universal
The Universal Channel Parameters command incorporates the
Channel
commands that follow it (all prior to a Carriage Return) into all
Parameters
the channels. This allows you to change such conditions as
baud rate, word length,
parity and flow control on all channels
CO
by executing a single command.
Channel
The Channel Select command selects an individual channel on
Select
which subsequent commands can operate. The Channel Select
command must precede any of the other commands but
C1-C32
remains in effect until changed. This is so that a string of
commands can be
entered without preceding each one with a
Cxx
command.
Destination
The
DC
command specifies the destination channel to which
Channel
the source channel is
communicating. A specific channel can
Number
only communicate with one other channel. On multinode
networks,
this command must be entered at both channel locations specifying
DCxx
each other as
destinations (channels can pass through six
nodes to get to its destination). On point-to-point networks, this
parameter can be downline loaded.
Destination
The
DN
command specifies destination node of the channels to
Node Number
which the
local source channels will connect. On multinode
networks, this command must be entered at both channel
DNxx
locations specifying each other as destinations (channels can
pass through
six nodes to get to its destination). On point-to-
point networks, this parameter can be down line loaded. For
example, if some node in your network is assigned 01 as its
number (a node where
its SN command was SN01), you can
communicate with the 01 location channels by executing a
DN01
command for the channels you want to communicate with node
1. At that point, your local channels will communicate
with those
at node 01.
Echo
The
E0-E1
commands turn on and off the echoplex feature of the
Command
MultiMux. When the echo condition is on, the data entered on the
channel keyboard is returned to the channel display. The purpose
E0-1
of this is so that in interactive operations an operator will not
experience undue delays in seeing entered data appear on the
monitor. When the echo
condition is off, the keyboard data is not
returned to the monitor.
E1
turns on echoplex and
E0
turns it off.
Flow Control
Flow Control is the means by which data flow is controlled from
Operations
the channel devices into the MultiMux. Flow Control is necessary
when
the
data
handling
capacity
of
an
individual
channel
cannot
F0-F2
keep up with the volume of data sent to it. There are two types
of flow control available
on the MultiMux. The software based
Xon/Xoff and hardware based Clear to Send (CTS).
F0
turns flow
control off,
F1
selects CTS flow control, and
F2
selects Xon/Xoff
flow
control.
The
way
channel
devices
control
the
data
flow
to
them
from
the
MultiMux
is
called
Pacing
(see
Pacing
command).
The combination of Flow Control for regulating data from individual
channel devices and pacing for regulating data to individual
channel devices is how
