Digicom Donatello User manual

DONATELLO
USER'S MANUAL
Cod. 7D1108 rev. 1.3 09/98

Index
I
INDEX
PREFACE III
1. GENERALITY 1.1
1.1. PRODUCT PACKAGE CONTENTS 1.1
1.1.2. PRODUCT OPTION (UPON REQUEST) 1.2
1.2. PRODUCT FEATURES 1.2
2. INSTALLATION 2.1
2.1. HARDWARE INSTALLATION 2.1
2.1.1. DONATELLO 56 EXTERNAL 2.1
2.1.2. DONATELLO INTERNAL ISA BUS 2.1
2.2. SOFTWARE INSTALLATION 2.2
2.2.1. WINDOWS 95/NT4.0 EXTERNAL OR INTERNAL VERSION 2.2
3. DESCRIPTION 3.1
3.1. FRONT PANEL EXTERNAL VERSION 3.1
Fig.3.1. Donatello front view 3.1
3.2. REAR PANEL EXTERNAL VERSION 3.1
Fig.3.2. Donatello Back side view 3.2
3.3. HARDWARE SETUP EXTERNAL VERSION 3.2
3.3.1. JUMPER SETUP 3.2
Fig.3.3. Donatello external version (view of a part of Donatello) 3.2
3.3.2. HARDWARE SETUP ISA CARD VERSION 3.3
Fig.3.4. ISA Card view (view of a part of Donatello) 3.3
3.4. AT COMMAND SET 3.4
3.4.1. AT COMMAND SET OF DONATELLO 3.4
3.4.2. AT COMMAND SET DESCRIPTION DIGITAL MODEM SECTION 3.5
3.5. ATCOMMAND SET DESCRIPTION OFANALOG MODEM SECTION
56K (EXTERNAL VERSION) OR 33,6K (ISA CARD VERSION) 3.15
3.6. DUAL FUNCTION INTERFACE 3.26
3.6.1. HOW SELECT THE DIGITAL ORANALOG MODEM 3.26
3.7. S-REGISTERS 3.27
3.7.1. S REGISTERS OF THE DIGITAL MODEM SECTION 3.27
3.7.2. S REGISTERS DESCRIPTION (ISDN ) 3.28
3.7.3. S REGISTERS OF THEANALOG MODEM SECTION 3.31
3.7.4. S REGISTER DESCRIPTION (56000ANALOG MODEM) 3.31
3.8. FACTORY CONFIGURATIONS 3.33
3.8.1. ANALOG MODEM FACTORY CONFIGURATION 3.33
3.8.2. DIGITAL MODEM FACTORY CONFIGURATION 3.34
3.9. AUTO-LOGON OPERATION (ONLY FOR DIGITAL MODEM) 3.34

II
Index
3.10. CALL BACK OPERATION (ONLY FOR DIGITAL MODEM) 3.36
4. DIAGNOSTIC 4.1
4.1. DIAGNOSTIC ACTIVATION 4.1
4.1.1. ANALOG LOCAL LOOP ACTIVATION 4.1
4.1.2. DIGITAL LOCAL LOOP ACTIVATION 4.1
4.2. ANALOG MODEM/FAX DIAGNOSTIC ACTIVATION 4.1
4.2.1. LOCALANALOG LOOPBACK TEST (CCITT LOOP 3) 4.1
4.2.2. LOCAL DIGITAL LOOPBACK TEST (CCITT LOOP 2 LOCAL) 4.2
4.2.3. LOCALANALOGLOOPBACK WITH SELF TEST 4.2
4.2.4. REMOTE DIGITAL LOOPBACK 4.2
4.2.5. REMOTE DIGITAL LOOPBACK WITH SELF TEST 4.2
DECLARATION OF CONFORMITY V

Donatello Preface
III
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..
The contents of this booklet may be modified without prior permission.
Every possible care has been taken in testing and putting together all the documentation contained in this
booklet, however Digicom can not take any responsability brought by the use of this booklet.
Microsoft, Windows 95 are trademarks of Microsoft Corporation.
ENVIROMENTAL CONDITIONS
ENVIRONMENTAL RELATIVE
TEMPERATURE HUMIDITY
from 0 to + 45 ° Cfrom 5 to 92% n.c..
Rapid changes of temperature or humidity should be avoided (0,03 ° C/min).
This equipment, including cables, should be installed in an area free from:
l Dust, humidity, heat from direct sun light.
l Objectswhichirradiate heat.Thesecouldcause damage tothecontainer or otherproblems.
l Objects which produce a strong electtromagnetic field (loudspeakers, etc.)
l Liquids or chemical corrosive substances.
GENERAL WARNINGS for all equipment powered directly from mains power
POWER SUPPLY 207-253 Volt single phase 50 Hz
FUSES only those indicated on the equipment label
ISOLATION CLASSIFICATION only those indicated on the equipment label
NOMINAL CURRENTS only those indicated on the equipment label
To avoid electric shock, the equipment should never be opened.Ask qualified personnel help.
Disconnect the power cable from the wall outlet when the equipment is not to be used for a
long period. To disconnect the cable pull it by the plug, never pull it by the cable itself.
If there should be liquid or object penetration in the equipment, disconnect the power cable
and call a qualified personl for testing.
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.
In a domestic environment this product may cause radio interference
in which case the user may be required to take adequate measures.

Donatello Generality
1.1
1. GENERALITY
This operating manual describes the installation procedures and the main features of the
Donatello ISDN modem family.
Donatello is the ISDN voice modem/fax with multimedia features. It is perfect to send data,
fax and fax on demand at high speed on ISDN lines or to surf the Internet with excellent
performances.Thankstoitsvoiceandmultimedia functions it canbeusedas a digital answering
machine, speakerphone with single and multiple voice mailboxes.
Furthermore Donatello has got a powerful K56Flex™ technology modem which can connect
with 56,000 bps modems as well as with 33,600 bps modems.
This operating manual is for the following
models: Donatello external (PC or
Macintosh) and Donatello internal ISA bus
(PC). See the details of the installation
procedureofyour enviromental in theinstallation
chapter.
DEAR CUSTOMER,
Thank you for choosing a Digicom modem.
Donatello is the perfect solution as it includes in a sole device the modem/fax/voice features
and the powerful performance of digital ISDN lines to surf the Internet at 128/64 Kbps with
PPP and MLPP protocolls.
Donatello works as a multistandard modem/fax (up to 56,000 bps); when used as a fax, it
complies with GR3 and V.17 to send and receive fax at 14400 bps. When used as a terminal
adapter, Donatello works as a modem.
It doesn’t require special software and it can be configured using AT commands by any
communication software.
1.1. PRODUCT PACKAGE CONTENTS
l 1 User manual
l 1 Donatello modem
l 1 Cable to connect the modem to the ISDN line
l 1 Cable to connect the modem to your PC or Macintosh
l 1 Floppy diskette or CD ROM containing Modem Drivers
l 1 Package of Data/fax communication software

1.2
Donatello Generality
1.1.2. PRODUCT OPTION (UPON REQUEST)
l V.24/V.35 Connector adapter, order code 8D5401
1.2. PRODUCT FEATURES
l Computer speed: up to 115.200 bit/s
l Serialinterface V.24 (RS232) orV.35 (using the connector adapter)for the externalversion.
l Enchanced AT commands set with autobaud for the data mode up to 115.200 bit/s.
l AutocallAT and V.25bis asyncronous (all model) and syncronous (external model only)
l Support V.110 , V.120 and V.42bis
l 64Kbps PPP and 128Kbps MLPPP for Internet or Intranet Remote Access
l Autologon and Call-back security features
l Up to 4 factory configuration
l Up to 4 user configuration
l Internal phone book with 20 numbers
l Syncronous operation up to 64Kbps (only for Donatello external)
l Datamodem modes for:K56flex™,V.34,V.32bis, V.32,V.22bis, V.22, V.21, V.23 (1200/75).
l Fax modem modes: 9600/4800bps, V.29/V.27 Group 3 and 14.400bps V.17.
l Class 1 fax command set
l Auto dial and autoanswer
l Enchaned voice and speakerphone features
l Error Correction: MNP 4/10 and V.42
l Data Compression: MNP 5 and V.42bis

Donatello Installation
2.1
2. INSTALLATION
2.1. HARDWARE INSTALLATION
2.1.1. DONATELLO 56 EXTERNAL
Seethefollowing picture to connectyour
modem to the COM port of your PC and
the ISDN cable to the BRI socket.
Seethefollowing picture to connectyour
modem to the GEO port of your
Macintosh and the ISDN cable to the
BRI socket.
After the
cable
installation, connect
the power cord to the main power supply outlet and
switch ON the power switch on the rear panel. Check
that the green LED PWR indicator light is on.
For the next step see the section Software Installation.
2.1.2. DONATELLO INTERNAL ISA BUS
Caution: Before removing the cover of any
computer, turn-off and unplug the mains
power cord.
Removethe computer’scover accordingto the
computermanual.Selectanyavailable ISA bus
slot. The internal modem can work in an 8 or
16 bit slot. Remove the slot cover and save
the screw. Carefully insert the modem into the
selectedslot.Securethebracketwith the screw
savedearlier.Replace the computercover and
plug in your computer. Connect the telephone
cable to the telephone line.
For the next step see the section Software Installation.

2.2
Donatello Installation
2.2. SOFTWARE INSTALLATION
l WINDOWS 95/NT4.0 DRIVER
Before starting with the software installation, please read the file Readme.txt present on the
Floppy Disk or the CD ROM included with the modem package. In this file you can read more
details about the driver installation for the different versions of Windows 95 and also the latest
release notes or driver upgrades not available at the time of printing this manual.
l MACINTOSH Driver ARA/Open Transport
Make a copy of the Leonardo driver file from the Floppy Disk or the CD ROM to your hard disk
in the folder Modem Script (System Folder- Extension-Modem Script).
Your Leonardo driver is present in the modem list and available for any application that uses
ARA/Open Transport.
Remember to select the correct communication port in the application in accordance with the
hardware installation.
l OTHER DRIVERS
For other Operating Systems, see the installation procedures on the Floppy Disk or the CD
ROM included with the modem package.
2.2.1. WINDOWS 95/NT4.0 EXTERNAL OR INTERNAL VERSION
1. Run Windows95/NT4.0
2. Select from the SDonatelloRT icon: Settings-Control Pannel- Modem-Add

Donatello Installation
2.3
3. From the window Install New Modem put a tick in the box “Don’t detect my modem: I will select it
from a list” and select the button: Next.
4. From the new window Install New Modem click the button Disk.
5. Insert the Floppy disk or the CD ROM in the appropriate drive and from the window : Install from
disk check that the correct driver letter appears showing where your Floppy/CD ROM is inserted
(eg. A or D), then click the button OK.

2.4
Donatello Installation
6. From the list select the driver to use (e.g. Digicom Donatello 56/64) and click Next
7. Select the COM port where your modem is connected, then clik Next and then Finish
Your modem is installed and ready to make the first connection.

Donatello Description
3.1
3. DESCRIPTION
3.1. FRONT PANEL EXTERNAL VERSION
On the front panel are present LED that indicate the most important interface circuit in use
and one push-button for TEST functions. In the following table, is present the complete
description and function of each LED:
NAME COLOR STATUS FUNCTION
PWR green on Donatello powered ON
DTR red on Computer ready
TD red on Transmit data
RD red on Received Data
MODEM red on Computer interface connected to the analog Modem/Fax
off Computer interface connected to the digital modem
B1 red on B1 channel in use
off B1 channel inactive
flashing B1 channel busy
B2 red on B2 channel in use
off B2 channel inactive
flashing B2 channel busy
MODEM FAX VOICE ISDN
PWR DTR TD RD MODEM B1 B2
Fig.3.1. Donatello front view
3.2. REAR PANEL EXTERNAL VERSION
On the rear panel are present the power switch, the V24 interface connectors and the RJ45
ISDN network connectors.
LINE RJ45 ISDN network connector
JA (HEAD Headphone jack
JB (MIC) Microphone jack
JC (SPK) Speaker jack

3.2
Donatello Description
PWR RS232 JA JB JC
HEAD MIC SPK
JDON LINE
Fig.3.2. Donatello Back side view
3.3. HARDWARE SETUP EXTERNAL VERSION
Inside Tintoretto is present a four position dip switch and some jumper berg for the hardware
setup.
3.3.1. JUMPER SETUP
JUMPER POSITION DESCRIPTION DEFAULT
U1 1-2 Transmit Termination 100 ohm
U1 2-3 The transmission channel is in high impedence l
U2 1-2 Receive Termination 100 ohm
U2 2-3 The receive channel is in high impedence l
U13 to U19 1-2 The serial interface is V.24 (RS232)
2-3 The serial interface is V.35
U48 to U49 1-2 The serial interface is V.24 (RS232)
2-3 The serial interface is V.35
Normally it is not neccessary modify the default predisposition of the jumpers.
1
1
PWR
RS232
LINE
U1
JA
JBJC
U2
Fig.3.3. Donatello external version (view of a part of Donatello)

Donatello Description
3.3
3.3.2. HARDWARE SETUP ISA CARD VERSION
JUMPER POSITION DESCRIPTION DEFAULT
U4 1-2 Transmission impedence 100 Ohm
U4 2-3 Transmission at high impedence l
U5 1-2 Receiver impedance 100 Ohm
U5 2-3 Receiver at high impedence l
U8 2-3 Enable interrupt 14
U8 1-2 Disable interrupt 14 l
Fig.3.4. ISA Card view (view of a
part of Donatello)
Dip Switch Setting
Inthe followingtablearedescribedall
the possible combination to set the
communication port (COM1 to
COM4) properly.
1
1
LINE
U4
U5
1
U8 DS1
18
P1
COM ADD. IRQ 1 2 3 4 5 6 7 8
l 1 3F8 4 OFF OFF OFF ON OFF OFF OFF OFF
l 2 2F8 3 OFF ON ON OFF OFF OFF OFF OFF
l 3 3E8 4 ON OFF OFF ON OFF OFF OFF OFF
l 4 2E8 3 ON ON ON OFF OFF OFF OFF OFF
1 3F8 5 OFF OFF OFF OFF ON OFF OFF OFF
2 2F8 5 OFF ON OFF OFF ON OFF OFF OFF
3 3E8 5 ON OFF OFF OFF ON OFF OFF OFF
4 2E8 5 ON ON OFF OFF ON OFF OFF OFF
1 3F8 10 OFF OFF OFF OFF OFF OFF ON OFF
2 2F8 10 OFF ON OFF OFF OFF OFF ON OFF
3 3E8 10 ON OFF OFF OFF OFF OFF ON OFF
4 2E8 10 ON ON OFF OFF OFF OFF ON OFF
1 3F8 11 OFF OFF OFF OFF OFF OFF OFF ON
2 2F8 11 OFF ON OFF OFF OFF OFF OFF ON
3 3E8 11 ON OFF OFF OFF OFF OFF OFF ON
4 2E8 11 ON ON OFF OFF OFF OFF OFF ON
l = Standard parameters

3.4
Donatello Description
3.4. AT COMMAND SET
Themodem supportATcommandsset 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
anescape sequence.The defaultescape sequence is +++ this must have at least one second
before and after being keyed. To go back into data mode simply typeATO.
Data Length
Each caracter of the AT command must be an ASCII code with any of the following format
combinations:
START DATA PARITY STOP TOT
171110
180110
170210
181111
The modem will accept even, odd, mark, or space.
3.4.1. AT COMMAND SET OF DONATELLO
COMMAND DESCRIPTION
AT Attention
A/ Repeat last command
A Answer incoming data call
DDial
E Echo commands ON/OFF
H Hang up
I Interrogate product status
N Selct speed connection (V.110 only)
O Go on-line
P Dial using the digital modem
Q Return result codes
S Retrive and store S-registers
T Dial using the analog modem
V Select the return codes type

Donatello Description
3.5
X Select return codes
Z Load user configuration
W Protocol result codes
&C C109 (DCD) control
&D C108 (DTR) control
&F Load factory profile
&K Flow control
&M Syncronous/asyncronous communication mode (see also &Q command)
&Q Syncronous/asyncronous communications mode
&R C105/C106 delay
&S C107 (DSR) control
&T Loop control
&U V42bis data compression
&V Display active profile
&W Store user configuration
&Y Define the user configuration to be loaded at power on
&Z Store Phone number
*I Caller Identification function (CALLER ID)
*K CTS (C106) during the handshaking
*M MultiSubscriber Number function (MSN)
*S Subaddress function
%A2 CSD call type (V.110 or V.120)
%A3 Select data channel
%Z1 Global Reset
/T TEI definition
//Z Delete RAM
!N1= Store Caller Identification number (CALLER ID)
!N2= Store Multi Subscriber Number (MSN)
!N3= Store Subaddress number
$B Dial destination ISDN/PSTN
$P Programming prompt viewer
$M Select the programming interface of Donatello
+++ Escape sequence
3.4.2.AT COMMAND SET DESCRIPTION DIGITAL MODEM SECTION
AT Attention
All the characters following the letters ‘AT’ are commands. In AT command mode Donatello
automatically detects the Computer speed and parity format. The Donatello will response
using the same speed and parity format of AT command.
Store: n/a Default= n/a

3.6
Donatello Description
A/ Repeat last command
CauseDonatello torepeat thelastATcommand. This command is neither preceded byATnor
followed by CR.
Store: n/a Default= n/a
A Answer incoming data call
Cause Donatello to go off hook and attempt a handshake in answer mode
Store: n/a Default= n/a
D Dial
Instruct to go off-hook and execute the phone number.
D 0-9 Dial the dial string.
DS=0-19 Dial the dial string associated to the memory location (from 0 to 19) stored using &Z command
Dn1*n2 Dial two number (n1 and n2) for MLPPP at 128Kbps. If the service access at 128Kbps is over a
single telephone number the n1 is egual to n2.
Example: ATD702611*702611
See also the commandA%A2 for MLPPP activation
Store: n/a Default= n/a
E Echo commands ON/OFF
Enable or disable echo of commands from the Computer to Donatello.
E0 Command echo disabled
E1 Command echo enabled
Store: S14 (bit 1) Default= E1
H Hang up
Hang up the Donatello from the ISDN network.
H0 Hang up Donatello from the ISDN network (off-line). This command is accepted only in Escape
mode.
Store: n/a Default= n/a
I Product Information
I0 Model.
I1 Checksum calculation, the result is displayed in Hexadecimal digit.
I2 Compare the checksum calculation with the stored value, the response will be OK or ERROR.
I3 Revision level.
I4 Display Central office
Store:= n/a Default= n/a
N Select the speed adaptation (V.110 or V120)
N0 In Originate mode:Donatello makes the connection at the speed fixed from register S37
In Answer mode:Donatello accepts incoming call in accordance with the set-up of the command
AT%A2 and the register S37.

Donatello Description
3.7
N1 In Originate mode:Donatello makes the connection at the speed detected at the last autobaud.
If this value is greater than 19200bit/s, the connection will be established at 19.200bit/s.
For speed detection below 19.200bit/s, the connectionwill be established at the line speed.
In Answer mode: Donatello handshake the standard and the speed in accordance with the Bearer
Capability information sended from the remote user
Store: S24 (bit 4) Default= N1
P Dial using the analog modem (default=don’t care)
This parameter, insert in the dial string, make the call using the analog modem section (if
AT$B0) or in defaul setup don’t care (AT$B1).
O Go On-line from Escape
Donatello returns in On-line from the Escape status
O Go On-line.
Store: n/a Default= n/a
Q Returns code
Enable or disable the return codes from Donatello to the Computer.
Q0 Messages transmission enabled
Q1 Messages transmission disabled
Store: S14 (bit 0,2,4) S52 (bit 0) Default= Q0
S S Registers
Sr= Change the “r” register content
Sr=xxx Store the number xxx, in hexadecimal digit, in the “r” register (from 0 to 255).
Store: n/a Default=n/a
T Dial using the digital modem (default=don’t care)
This parameter, insert in the dial string, make the call using the digital modem section (if
AT$B0) or in defaul setup don’t care (AT$B1).
V Verbose Mode
Selectthe type ofthe return code from Donatello to theComputer.Can be selectedthe numeric
modetomanage Donatello by aPCand the verbose modetomanage Donatello by anoperator.
Using the numeric mode the return codes are followed by the <CR> char.
Using the verbouse mode the return code are preceded and followed by the <CR> and <LF>
char.
V0 Return codes displayed in numeric mode
V1 Return codes displayed in verbose mode
Store: S14 (bit 3) Default= V1

3.8
Donatello Description
NUMERIC VERBOSE
0OK
1 CONNECT
2RING
3 NO CARRIER
4 ERROR
6 NO DIALTONE
7 BUSY
5 CONNECT 1200
10 CONNECT 2400
11 CONNECT 4800
12 CONNECT 9600
14 CONNECT 19200
28 CONNECT 38400
32 CONNECT 48000
18 CONNECT 57600
19 CONNECT 64000
20 CONNECT 115200
46 CARRIER 1200
47 CARRIER 2400
48 CARRIER 4800
49 CARRIER 7200
50 CARRIER 9600
54 CARRIER 19200
56 CARRIER 38400
NUMERIC VERBOSE
39 CARRIER 48000
59 CARRIER 64000
60 CARRIER 128000
83 PROTOCOL: V120
84 PROTOCOL: V110
85 PROTOCOL: V120 COMPRESSION
86 PROTOCOL:PPP
87 PROTOCOL:MLPPP
46 84 CONNECT 1200/V110
47 84 CONNECT 2400/V110
48 84 CONNECT 4800/V110
49 84 CONNECT 7200/V110
50 84 CONNECT 9600/V110
51 84 CONNECT 12000/V110
52 84 CONNECT 14400/V110
54 84 CONNECT 19200/V110
56 84 CONNECT 38400/V110
39 84 CONNECT 48000/V110
58 84 CONNECT 64000/V110
59 83 CONNECT 64000/V120
59 85 CONNECT 64000/V120COMP
59 86 CONNECT 64000/PPP
60 87 CONNECT 128000/MLPPP
X Select the return code types
X0 Enable return codes from 0 to 4
X1 Enable all return codes
Store: S24 (bit 3) S22 (bit 4, 5, 6) Default=X1
Following the table including all the result messages in numeric and verbouse mode:
W Protocol result code
Enable protocol result code (seeATX command)
W0 Partial result code. When the connection is established, Donatello send the connection message
CONNECT followed the interface speed.
W1 Complete result code. When the connection is established, Donatello send these connection
messages:
CARRIER xxxx
PROTOCOL xxxx
CONNECT xxxx
W2 Complete result code. When the connection is established, Donatello send these connection
messages:

Donatello Description
3.9
CONNECT “Line Speed”/”Protocol”
like
CONNECT 64000/V120
This command is connected with the ATV (Verbose Mode) command.
Store: S24 (bit 5, 6) Default= W1
Z Load user configuration
Reset Donatello and load a user configuration stored in non volatile memory.
Z0 Load user configuration n. 0
Z1 Load user configuration n. 1
Z2 Load user configuration n. 2
Z3 Load user configuration n. 3
Store: n/a Default= n/a
&C C109 (DCD) Control
Determine how the state of the C109 relates to the data call status.
&C0 C109 is always ON.
&C1 C109 goes ON only when a call is established.
Store: S21 (bit 5) Default=&C0
&D C108 (DTR) Control
Determine how the DTR is interpreted by Donatello.
&D0 C108 is ignored.
&D1 If DTR drops while Donatello is on-line, the effect is the same as if the escape sequence is received,
forcing Donatello into command mode without dropping the connection. When Donatello is in off-
line status DTR drops are ignored.
&D2 DTR comply with ITU-T C108.2; while DTR is Off Donatello will not answer a call. If DTR drops while
Donatello is on-line, the call is immediately terminated.
Insyncronous mode (&Q2/&M2), when the DTR goes ON, the Donatello call the thelephone number
present in the 0 location of the internal phonebook.
&D3 As for AT&D2 except that the transition of the DTR from ON to OFF loads the user configuration
improved with AT&Y command.
Store: S21 (bit 3, 4) Default= &D0
&F Load factory profile
Load as active profile the factory profile.
&F0 Load as active profile the factory profile 0
&F1 Load as active profile the factory profile 1
&F2 Load as active profile the factory profile 2
To have more details regarding the different configurations, please referring to “FACTORY
CONFIGURATIONS” chapter.
Store: n/a Default= n/a

3.10
Donatello Description
&K Flow control
Define the flow control options
&K0 NO flow control.
&K3 Hardware RTS/CTS flow control
&K4 Bi-directional software XON/XOFF (Donatello —> Computer and Computer —> Donatello) flow
control. The Donatello doesn’t transmit to the remote the XON/XOFF chars received from the
Computer.
&K8 Unidirectional software XON/XOFF (Donatello —> Computer) flow control. The Donatello doesn’t
recognize the XON/XOFF chars received from the Computer
&K12 Bi-directional software XON/XOFF (Donatello —> Computer and Computer —> Donatello) flow
control. The Donatello transmit to the remote the XON/XOFF chars received from the Computer.
&K16 Software XON/XOFF Donatello <—> Donatello flow control. (V.110 only). In this mode there is flow
control between local and remote Donatello.There is no flow control on the Computer interface.
&K20 Software XON/XOFF Computer <—> Donatello and Donatello <—> Donatello flow control. (V.110
only).
Store: S49 (bit 0, 1, 2, 3, 4) Default= &K3
&Q Asyncronous mode
Select Donatello asyncronous operating mode.
&Q0 Asyncronous mode (buffer enable).
&Q4 Asyncronous mode (buffer disable) in V.110 only. The Computer <-> Donatello interface speed must
be the same to the line interface (see ATNx and S37 commands).
Store: S27 (bit 0, 1, 3) Default= Q0
&S C107 (DSR) control
Establish how the C107 (DSR) will operate.
&S0 C107 (DSR) is always ON.
&S1 C107 (DSR) function as standard; DSR is ON when the connection is established and will be OFF
when Donatello hangs-up.
Store: S21 Default=&S0
&T Enable or disable Loop test
Allow to select the of loop test.
&T0 Terminates test modes
&T1 Enable local anolog loopback (loop 3).
&T3 Enable on the B1 channel the local digital loopback (V.110 only). To activate this test, follow these
steps:
- Make a connection with a remote Donatello
- Go in Escape mode with “+++” command
- Send the AT&T3 loop test
- All the data trasmitted from the remote Donatello, are resended on the line to the local Donatello
Store: n/a Default= n/a