Multi-Tech Systems MMV1600 owner manual Channel Parameter Commands

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

Channelthe 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-E1commands

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