XE2401L Ver la hoja de datos (PDF) - Unspecified

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XE2401L

2400bps Serial Input Component Modem

Unspecified 

The XE2401L uses "AT" commands for

configuration and control. This section describes

use of the AT command format and lists the AT

commands, Registers and Result codes.

Modes of Operation

The "AT" commands have two operational

modes; Command Mode and Data Mode.

Data Mode: The XE2401L enters data mode

after it connects with a remote modem and issues

an appropriate "CONNECT" result code. In the

Data Mode the modem sends all data presented

on Transmit Data (TXD) to the remote modem

and puts data from the remote modem onto

Received Data (RXD). When the modem exits

data mode, it issues a "NO CARRIER" result

code.

AT Command List

An asterisk indicates the factory default

A - Answer Command -

Bn - Select Communications Standard

n=0 Selects CCITT standards

n=1 Selects Bell standards*

D - Dial Command -

P = Pulse dial

T = Tone dial

R = Connect as an answering modem

W = Wait for dial tone

, = Pause for the duration of S8

@ = Wait for silence

! = Switch hook flash

; = Return to the command state

En - Command Echo

n=0 Do not echo commands

n=1 Enable command echo*

Hn - Switch Hook Control -

n=0 Switch hook relay closes*

n=1 The switch hook relay opens

In - Modem Identification

Ln - Speaker Volume -

n=0 Low speaker volume

n=1 Low speaker volume

n=2 Moderate speaker volume*

n=3 High speaker volume

Mn - Speaker Activity -

n=0 Speaker off

n=1 Speaker on until carrier received*

n=2 Speaker remains on

n=3 Speaker on after dialing until carrier is

detected.

On - On Line

n=0 Return On Line with no retrain*

n=1 Initiate retrain while returning On line.

Qn - Responses

n=0 Send responses *

n=1 No Responses

Sr? - Interogate Register -

Sr=n - Set Register Value -

Vn - Result Codes -

n=0 Numeric Result Codes

n=1 English Word Result Codes*

Xn - Result Code Set -

n=0 Responses 0-4*

n=1 Responses 0-5 & 10

n=2 Responses 0-6 & 10

n=3 Responses 0-5, 7 & 10

n=4 Responses 0-7 & 10

Yn - Long Space Disconnect -

n=0 Disabled *

n=1 Enabled

XE2401L

XECOM\5

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