Digicom MTL01 User manual

http://www.digicom.it
MTL01
User's Guide
rev. 1.0 09/2002

I
MTL01 Index
INDEX
PREFACE II
DECLARATION CE OF CONFORMITY II
1. GENERALITY 1.1
1.1. CHARACTERISTICS 1.1
1.2. PACKAGE CONTENT 1.1
2. INSTALLATION 2.1
2.1. INSTALLATION - WINDOWS® 2.1
2.2. HARDWARE SETTING 2.2
3. MODEM AT COMMAND SET 3.1
3.1. AT COMMAND SET DESCRIPTION 3.1
3.1.1. MNP10 COMMAND 3.6
3.2. S REGISTERS 3.7
3.2.1. SPECIAL S REGISTER DESCRIPTION 3.7
3.3. CONNECTION MESSAGES 3.8

II
MTL01 Preface
PREFACE
All rights reserved; no part of this publication may be reproduced, stored in a retrieval system, or trasmitted in any form or by
any means, electronic, otherwise, without the prior written permission of Digicom S.p.A.
Thefollowinginstallationrulesshouldberespectedinordertohavethebestworkingorderoftheequipment
and for the user’s safety
ENVIROMENTAL CONDITIONS
Enviromental temperature Relative humidity
from -20 a +50°Cfrom 20 to 80% n.c.
Rapid changes of temperature or humidity should be avoided.
This equipment, including cables, should be installed in an area free from:
Dust, humidity, heat from direct sun light.
Objects which irradiate heat. These could cause damage to the container or other problems.
Objects which produce a strong electtromagnetic field (loudspeakers, etc.)
Liquids or chemical corrosive substances.
CLEANING THE TERMINAL
Use a clean and soft cloth. Wet the cloth with water or natural detergent if it is necessary to remove any
stains. Never use chemical products such as petrol or solvents.
VIBRATIONS OR DROPPING
Caution against vibrations and dropping.
WARNING: This is a class A product.
Inadomesticenvironmentthisproductmaycauseradiointerferenceinwhichcasethe user may be required
to take adequate measures.
DECLARATION OF CONFORMITY
We, Digicom S.p.A. with registered office at: via Volta 39 - 21010 Cardano al Campo (Varese - Italy) declare
under our sole responsability that the product:
Name: MTL01
satisfies the basic requirements of the below indicated Directive:
1999/5/CE of March 9 1999, R&TTE.
As having been designed in conformity with the requirements of following Reference Standards:
EN 55022, EN 61000-3-2, EN 55024, EN 60950, ETSI TBR 21

1.1
MTL01 Generality
1. GENERALITY
Congratulations for choosing Digicom MTL01.
MTL01 is an analog modem projected to be integrated into
professional equipments and to be used for data transfer with
remote devices.
It is possible to configure MTL01 using a completeAT commands
set.
To guarantee the maximum compatibility with the industrial
systems, MTL01 has been carried out with an ISA-Bus interface,
which is very popular in these environments.
ISA-Busslots are supported bythe most Operating Systems,even
by the less recent ones (eg. MSDOS).
1.1. CHARACTERISTICS
Standard: V90, K56flex, V34, V32bis, V32, V22, V22bis, V21
Connections up to 33600bit/s with another analog device
Internet Connections up to 56000bit/s
DTE speed up to 115200bit/s
Asynchronous functionality
MNP5 and V.42bis data compression
10 bit Asynchronous support
AT commands support
CTR21 International Line Interface
Autoanswer
Flash upgradable
Size: 125x90x15mm
Power supply: +5Vdc (from the Terminal ISA-Bus socket)
Power consumption: 1.5W
Data interface: comb connector for XT/AT bus
1.2. PACKAGE CONTENT
MTL01
Phone cord
Quick Guide

2.1
MTL01 Installation
2. INSTALLATION
Before inserting an ISA-Bus modem into the terminal, a COM serial port and an interrupt must be set
through the dip-switches and/or jumpers on the card. The Terminal will be able to interface the modem
using the COM and IRQ resources.
The same concept is used also for Terminals with Operating System: in this case MTL01 is detected as a
serial port; this means that, during the installation it is important to detect the new COM port.
After the installation, you can configure the modem using AT commands or a Windows“ driver (Standard
Modem).
For the hardware installation, please follow this procedure:
Remove the modem from its package, and check it is OK.
Set the dip-switch with COM port and IRQ (see table below).
Switch-OFF the Terminal, then insert the modem in a free ISA-Bus slot.
Fix the card modem and close the Terminal.
Insert the phone line cable using the one supplied in the package.
Oncethe installation oftheserial port isover,youcan start with themodem configuration usingATcommands.
2.1. INSTALLATION - WINDOWS®
Windows® sees MTL01 as a serial port, so you must look for a free COM and IRQ in the Operating System,
then set a COM and IRQ in MTL01.
Selectthe System utilityin the Control panel,thenselect the Hardware folder and click the Device manager
button. In the most recent Operating Systems use the System Information utility present in Programs/
Accessories/System Utility.
Now set the dip-switch and the jumper on the modem card.
If there are not free COM or IRQ, you can disable COM1 or
COM2 (if it is not used) in BIOS.
For the hardware installation, please follow this procedure:
Remove the modem from its package, and check it is
OK.
Set COM and IRQ by the dip-switch (see table below).
Switch-OFFthe PC, then insert the modem in a free ISA-
Bus slot.
Fix the card modem, and close the PC.
Insert the phone line cord supplied in the modem
package.
Run Windows®: MTL01 could not automatically detect the
new serial port as it is not a Plug&Play (PnP) card. Run the
Add/Remove Hardware utility in the Control Panel and
select automatic search: Windows® will detect a new serial port.
Afterthe serial portinstallation is over, you canconfigure the modemusingATcommands,or with aWindows®
driver (Standard Modem).

2.2
MTL01 Installation
2.2. HARDWARE SETTING
MTL01 supports a dip-switch (see picture below) for COM and IRQ setting. You can see the configuration in
the following table.
Address DIP SWITCH DS1 Jumper
12345678 U1
COM1 3F8 OFF OFF
COM2 2F8 OFF ON
COM3 3E8 ON OFF
COM4 2E8 ON ON
IRQ3 ON OFF OFF OFF OFF OFF Pos. 1-2
IRQ4 OFF ON OFF OFF OFF OFF Pos. 1-2
IRQ5 OFF OFF ON OFF OFF OFF Pos. 1-2
IRQ7 OFF OFF OFF ON OFF OFF Pos. 1-2
IRQ10 OFF OFF OFF OFF ON OFF Pos. 1-2
IRQ11 OFF OFF OFF OFF OFF ON Pos. 1-2
IRQ14 OFF OFF OFF OFF OFF OFF Pos. 2-3
 factory default

3.1
MTL01 Modem AT Command Set
3. MODEM AT COMMAND SET
The modem supports a completeAT commands set to define the configuration, initiate or terminate modem
communication, test the modem and the communication link. The modem will work in two basic operations:
command mode and data mode.
COMMAND mode is when the modem is not connected to another modem, therefore “Off Line” or in a idle
condition. In this mode the modem will accept commands beginning withAT prefix. DATA mode is when the
modem is connected to another modem, that is an “On Line” condition or functioning. In this mode all the
characters sent from computer are interpreted as data and they are sent to the remote modem. You may
switch from data to command mode by entering an escape sequence. The default escape sequence is +++.
To be valid, the sequence must be followed by an AT command, i.e. "+++AT<CR>".
Data Length
Digicom's modems can manage the following ASCII code formats:
CASE START BIT DATA BIT PARITY STOP BIT TOT
11 7 1 110
21 8 0 110
31 7 0 210
The modem will accept even, odd, mark, or space.
3.1. AT COMMAND SET DESCRIPTION
NOTE: "" default factory commands
AT Attention
All the characters following the letters ‘AT’are commands. InAT command mode the modem automatically
detects the computer speed and parity format. The modem will response using the same speed and parity
format of AT command.
ATA Answer incoming data call
Cause the modem to go off hook and attempt a handshake in answer mode.
A/ Repeat last command
Cause the modem to repeat the lastAT command.This command must not be preceded byATand followed
by CR.
ATD Dial Command
0:9 Dial numbers
*DTMF digits
#DTMF digits
A..D DTMF digits
PPulse dial
TTone dial
S=n Select a number stored in the modem internal book (see AT&Z command)
!Flash
WWait for dial tone
@Wait for five seconds of silence
,Pause
LRecall the last number dialed
;Return to Command state. Added to the end of the dial string, this causes the modem to return
to the command state after it processes the portion of the dial string preceding the “;”. The
modem will enter call progress only after an additional dial command is issued without the “;”
terminator.
ATE Commands Echo
E0 Commands echo disabled.
E1 Commands echo enabled.

3.2
MTL01 Modem AT Command Set
ATH DISCONNECTION
H0 Modem disconnects
H1 Modem connects to the line and remain in command mode for the time defined in S7.
ATI IDENTIFICATION
I0 Maximum line speed
I1 Product type
I3 Product name
I4 Software release
I5 Active Country Code
ATO RETURN ON LINE
O0 On line state when during connection the modem is in command mode.
O1 Like previous plus equalizer retrain.
ATP SET PULSE DIAL DEFAULT
This command forces pulse dialling.
ATQ QUIET RESULT CODES
Q0 Answer codes enabled.
Q1 Answer codes disabled.
ATS READ/WRITE REGISTER
Sn=vvvWrite the vvv value in the n Register.
Sn? Display the value stored in the n Register.
ATT SET TONE DIAL DEFAULT
This command forces tone DTMF dialling.
ATV RESULT CODE FORMAT
V0 Result code display as digit (short form).
V1 Result code display as words (extened form).

3.3
MTL01 Modem AT Command Set
RESULT CODE SHORT & EXTENDED FORM SUMMARY
SHORT EXTENDED
0OK
1CONNECT
2RING0
3NO CARRIER
4ERROR
5CONNECT 1200
6NO DIALTONE
7BUSY
8NO ANSWER
10 CONNECT 2400
11 CONNECT 4800
12 CONNECT 9600
13 CONNECT 7200
14 CONNECT 12000
15 CONNECT 14400
59 CONNECT 16800
16 CONNECT 19200
61 CONNECT 21600
62 CONNECT 24000
63 CONNECT 26400
64 CONNECT 28800
91 CONNECT 31200
84 CONNECT 33600
17 CONNECT 38400
19 CONNECT 115200
22 CONNECT 1200TX/75RX
23 CONNECT 75TX/1200RX
40 CARRIER 300
44 CARRIER 1200/75
45 CARRIER 75/1200
46 CARRIER 1200
47 CARRIER 2400
48 CARRIER 4800
49 CARRIER 7200
50 CARRIER 9600
51 CARRIER 12000
52 CARRIER 14400
53 CARRIER 16800
54 CARRIER 19200
SHORT EXTENDED
55 CARRIER 21600
56 CARRIER 24000
57 CARRIER 26400
58 CARRIER 28800
78 CARRIER 31200
79 CARRIER 33600
66 COMPRESSION: CLASS 5
67 COMPRESSION: V42 bis
69 COMPRESSION: NONE
76 PROTOCOL: NONE
77 PROTOCOL: LAP
80 PROTOCOL: ALT
150 CARRIER 32000
151 CARRIER 32000
152 CARRIER 36000
153 CARRIER 38000
154 CARRIER 40000
155 CARRIER 42000
156 CARRIER 44000
157 CARRIER 46000
158 CARRIER 48000
159 CARRIER 50000
160 CARRIER 52000
161 CARRIER 54000
162 CARRIER 56000
165 CONNECT 32000
166 CONNECT 34000
167 CONNECT 36000
168 CONNECT 38000
169 CONNECT 40000
170 CONNECT 42000
171 CONNECT 44000
172 CONNECT 46000
173 CONNECT 48000
174 CONNECT 50000
175 CONNECT 52000
176 CONNECT 54000
177 CONNECT 56000
Note: The commands in the above list can be followed by \ARQ message
ATW REPORT AT CONNECTION
W0 When connected the modem displays:CONNECT and the digital rate.
W1 When connected the modem displays:Line Speed,Error Correction Protocol (if any),Digital rate
W2 When connected the modem displays:CONNECT and line speed.
ATX DIAL TONE DETECTION
X0 No control on dial tone.
X1 Busy and dial tone are ignored.
X2 Dial tone detected.
X3 Busy tone detected.
X4 All messages enabled.
ATZ RESET AND LOAD USER PROFILE
Z0 Reset and load user profile 0.
Z1 Reset and load user profile 1.

3.4
MTL01 Modem AT Command Set
AT+MS= MODULATION FORMAT
This extended-format command selects the modulation, optionally enables or disable automode, and
optionally specifies the lowest and highest rates using one to four subparameters. the command format is:
AT+MS=[mod],[automode],[min_rate],[max_rate]
# [mod] = modulation type
# [automode] = automode enable or disable
# [min_rate] = min. line speed
# [max_rate] = max.line speed
Modulation type (see the table below)
MOD MODULATION POSSIBLE RATE bps
0V.21 300
1V.22 1200
2V.22bis 2400 or 1200
3V.23 1200
9V.32 9600 or 4800
10 V.32bis from 14400 to 4800
11 V.34 from 33600 to 2400
12 V.90 from 56000 to 28800
56 K56Flex from 56000 to 32000
Automode: see the ATN command
Line speed min/max: These parameters permit to define, within a modulation standard, the minimum
and maximum connection rate.
TheAT+MS? command shows the currently modem configuration, the default value is: 12,1,300,56000
Some configuration examples
Modem set up with automode enabled and connection speed between 300 bps and 56000 bps:
AT+MS=12,1,300,56000
The modem will connect at the maximum speed available if the interface speed is equal or higher than
the max rate (56.000bps).
If the computer speed is less than the max rate, the modem will connect at the computer speed.
Modem set up in V.34 with automode disabled and speed fixed at 33.600
AT+MS=11,0,33600,33600
In this case the modem will connect only if the computer speed is equal or higher than the speed setup in
the AT+MS command. AT+MS=9,1,300,9600
The modem can handshake from V.32 (9600 bps) to V.21 (300 bps).
Standard Available speeds
V.90 56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667, 45333, 44000, 42667, 41333,
40000, 38667, 37333, 36000, 34667, 33333, 32000, 30667, 29333, 28000
K56Flex 56000, 54000, 52000, 50000, 48000, 46000, 44000, 42000, 40000, 38000, 36000, 34000,
32000
V.34 33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200,
4800, 2400
V.32bis 14400, 12000, 9600, 7200, 4800
V.32 9600, 4800
V.22bis 2400, 1200
V.22 1200
V.21 300
Bell 103 300
Bell 212 1200
AT%C DATA COMPRESSION CONTROL
%C0 Compression disabled.
%C1 MNP5 enabled only.
%C2 V42bis enabled only.
%C3 MNP5 and V42bis enabled.

3.5
MTL01 Modem AT Command Set
AT%E AUTORETRAIN CONTROL
%E0 Autoretrain disabled.
%E1 Autoretrain enabled.
%E2 Fallback/fallforward enabled. Enabled only in error corrector or buffer mode.
AT%L DISPLAY RECEIVE LEVEL IN DBM
Returns a value which indicates the received signal level.
Example 009 = -9 dBm, 043 = -43 dBm.
AT%Q LINE SIGNAL QUALITY
From 000 (good quality) to 127 (poor quality, troubled signal).
AT&C CARRIER DETECT OPTION
&C0 Carrier detect always ON. When modem disconnect DCD (C109) goes OFF for 1 sec.; function
109 wink.
&C1 Carrier detect is ON when remote carrier is present.
AT&D DATA TERMINAL READY OPTION
&D0 DTR signal is ignored.
&D1 Modem return to Command Mode upon detecting ON to OFF transition on DTR.
&D2 Modem hangs up and disables auto-answer upon detecting ON to OFF transition on DTR.
&D3 Modem reset upon detecting ON to OFF transition on DTR.
AT&F FACTORY CONFIGURATION
&F0 Load factory configuration 0.
&F1 Load factory configuration 1.
AT&K DATA FLOW CONTROL
&K0 Flow control disable.
&K3 Hardware flow control (RTS/CTS) enabled (Default for data modem modes).
&K4 Software flow control (Xon/Xoff) enabled.
&K5 Software flow control (Xon/Xoff) in trasparent mode enabled.
&K6 Hardware and software flow control enabled (default for fax modem modes).
AT&P MAKE/BREAK RATIO
&P0 39%-61% make/break ratio with 10 pulses per second.
&P1 33%-67% make/break ratio with 10 pulses per second.
AT&Q OPERATING MODE SELECTION
&Q5 Operations with error corrector. It is automatically selected with \N command (different from 0
and 1).
&Q6 Asynchronous with buffer enabled (AT\N0).
AT&R C106
&R0 In asynchronous mode, C106 is controlled according to V25 handshake reccomandation.
&R1 In synchronous mode, C106 follows the flow control.
AT&S C107 (DATA SET READY OPTION)
&S0 DSR will remain ON all the time.
&S1 DSR will become active after answer tone has been detected and inactive after the carrier has
been lost.
AT&V VIEW ACTIVE AND STORED PROFILES
AT&W STORE ACTIVE PROFILE
&W0 Store active profile as Profile 0.
&W1 Store active profile as Profile 1.
AT&Y DEFINE DEFAULT PROFILE AFTER POWER ON
&Y0 Use profile 0 after power on.
&Y1 Use profile 1 after power on.

3.6
MTL01 Modem AT Command Set
AT\N ERROR CORRECTION AND BUFFER CONTROL (MNP AND V42)
\N0 Selects normal speed buffered mode (disables error correction mode). Forces &Q6.
\N1 Serial interface selected. Selects direct mode and is equivalent to &M0, &Q0 mode operation.
Forces &Q0.
\N2 Selects reliable (error correction) mode. The modem will first attempt a LAPM connection and
then an MNP connection. Failure to make a reliable connection results in the modem hanging
up. Forces &Q5.
\N3 Selects auto reliable mode. This operates the same as \N2 except failure to make a reliable
connection results in the modem falling back to the speed buffered normal mode.
\N4 SelectsLAPM error corrector mode. Failure to makean LAPM error-correction connection results
in the modem hanging up. Forces &Q5.
\N5 Selects MNP error corrector mode. Failure to make an MNP error-correction connection results
in the modem hanging up. Forces &Q5.
Note: Error correction starting from V22 standard
AT\V MESSAGE COMPOSITION
\V0 Messages are managed over several lines, according to X, W and S95 commands.
\V1 Messages are managed over a single line, according to V and Q commands.
3.1.1. MNP10 COMMAND
AT-K MNP10 SERVICE MANAGEMENT
-K0 Disable MNP10 service. The modem negotiates V42bis only.
-K1 Enable MNP10 service using detection phase
-K2 Enable MNP10 service without using detection phase

3.7
MTL01 Modem AT Command Set
3.2. S REGISTERS
REG. RANGE UNIT DEF. DESCRIPTION SAVED
S0 0,2-5 Ring 0 Ring to answer on 
S1 0-255 Ring 0 Ring count
S2 0-255 ASCII 43 Escape character 
S3 0-127 ASCII 13 Carriage return character
S4 0-127 ASCII 10 Line Feed character
S5 0-127 ASCII 8 Back Space character
S6 3-10 1 sec. 4 Wait for dial tone 
S7 0-90 1 sec. 60 Wait for data carrier 
S8 0-255 1 sec. 2 Pause time for “,” character 
S9 0-255 100ms 6 Answer tone detection time 
S10 0-255 100ms 14 Lost carrier to hang up delay 
S12 0-255 20ms 50 Escape sequence code guard 
S18 0-255 1 sec. 0 Test timer 
S29 0-255 10ms 10 Flash time
S30 0-255 1 min 0 Inactivity timer on data (cannot be stored)
S32 0-255 ASCII 17 Xon character
S33 0-255 ASCII 19 Xoff character
S91 10-15 dB 10 Adjust transmission level
S92 10-15 dB 10 Adjust transmission level in fax mode
S95 0-255 ASCII 2 Connection messages management 
3.2.1. SPECIAL S REGISTER DESCRIPTION
ATS9 DETECTION TIME FOR ANWER TONE
0 - 255 100ms Answer tone detection before handshake
Default = 6
ATS10 CARRIER DETECT RESPONSE TIME
0-255 100ms Sets the length of time, in thenths of a seconds, that the modem waits before hanging up
after a loss of carrier.
255 10ms The modem doesn’t disconnect for a loss of carrier
Default = 14
ATS30 INACTIVITY DISCONNECT TIMER
0The modem doesn’t disconnect as no data is sent or received.
0-255 Sets the length of time, in tens of seconds, that the modem will stay online before
disconnectiong when no data is sent or received. The timer is inoperative in synchronous
mode.
Default = 0 (cannot be stored)
ATS91 ADJUST TRANSMISSION LEVEL IN SWITCHED LINE
10-15 dB This register checks the modem transmission level in switched line
Default=10
ATS92 ADJUST TRANSMISSION LEVEL IN FAX MODE
10-15 dB This register checks the modem transmission level in fax mode.
Default=10
Note: Each change of S91 and S92 is automatically stored into the modem non volatile memory.

3.8
MTL01 Modem AT Command Set
3.3. CONNECTION MESSAGES
S95 ATW0 ATW1 AT W2
0CONNECT Dte CARRIER Dce CONNECT Dce
PROTOCOL: Prot.
CONNECT Dte
1CONNECT Dce CARRIER Dce CONNECT Dce
PROTOCOL: Prot.
CONNECT Dce
2CONNECT Dte/ARQ CARRIER Dce CONNECT Dce/ARQ
PROTOCOL: Prot.
CONNECT Dte/Arq
4CARRIER Dce CARRIER Dce CARRIER Dce
CONNECT Dte PROTOCOL: Prot. CONNECT Dce
CONNECT Dte
8PROTOCOL: Prot. CARRIER Dce PROTOCOL: Prot.
CONNECT Dte PROTOCOL: Prot. CONNECT Dce
CONNECT Dte
32 COMPRESSION: Comp. CARRIER Dce COMPRESSION: Comp.
CONNECT Dte PROTOCOL: Prot. CONNECT Dce
COMPRESSION:Comp
CONNECT Dte
Dce = Line Speed
Dte = Interface Speed
Comp. = V.42bis - MNP5 - NONE
Prot. = V.42 - LAPM - NONE
COMMAND DESCRIPTION
AT X List of available messages
AT W Answer message Format
ATS95 Connection message management

ITALY
21010 Cardano al Campo VA
via A. Volta 39