Fargo Maestro 100, Maestro 20 User Manual

GSM GPRS Modem

900 / 1800

USER MANUAL

Rev. 02

Confidential, the whole present document is the sole property of Fargo Telecom O/B on Fargo Services (HK) Ltd.

Revision history
Rev. Date Details Originated by

00 07 April 2003 First release Wallace Lee
01 07 Nov 2003 Correction on Fargo Maestro 100 setup Wallace Lee
02 13 Jun 2005 Correct Section 5.2, add section 6.5 Wallace Lee

Fargo Maestro is a registered trademark of Fargo Telecom O/B Fargo
Services (H.K.) Ltd.

This manual is written without any warranty. Fargo Telecom O/B Fargo
Services (H.K.) Ltd reserves the right to modify or improve the product and its

accessories which can also be withdrawn without prior notice.
Besides, our company stresses the fact that the performance of the product as
well as accessories depends not only on the proper conditions of use, but also on
the environment around the places of use.

Fargo Telecom O/B Fargo Services (H.K.) Ltd assumes no liability for damage
incurred directly or indirectly from errors, omissions or discrepancies between the
modem and the manual.

Confidential, the whole present document is the sole property of Fargo Telecom O/B on Fargo Services (HK) Ltd.

1

CONTENTS

SAFETY PRECUTIONS 2

CHAPTER 1 INTRODUCTION 3

CHAPTER 2 INSTALLATION 7

CHAPTER 3 WORKING WITH FARGO MAESTRO 9

CHAPTER 4 SPECIFICATION 12

CHAPTER 5 APPENDIX 13

CHAPTER 6 TROUBLESHOOTING 14

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SAFETY PRECUTIONS

z The modem generates radio frequency (RF) power. When using the modem care must be taken on

safety issues related to RF interference as well as regulations of RF equipment.

z Do not use your phone in aircraft, hospitals, petrol stations or in places where using GSM products is

prohibited.

z Be sure that the modem will not be interfering with nearby equipment. For example: pacemakers or

medical equipment. The antenna of the modem should be away from computers, office equipment,
home appliance, etc.

z An external antenna must be connected to the modem for proper operation. Only uses approved

antenna with the modem. Please contact authorized dealer on finding an approved antenna.

z Always keep the antenna with minimum safety distance of 26.6 cm or more from human body. Do not

put the antenna inside metallic box, containers, etc.

Using the modem in vehicle

z Check for any regulation or law authorizing the use of GSM in vehicle in your country before installing

the modem

z Install the modem by qualified personnel. Consult your vehicle dealer for any possible interference of

electronic parts by the modem.

z The modem should be connected to the vehicle’s supply system by using a fuse-protected terminal in

the vehicle’s fuse box

z Be careful when the modem is powered by the vehicle’s main battery. The battery may be drained

after extended period.

Protecting your modem

z To ensure error-free usage, please install and operate your modem with care. Do remember the

following:

z Do not expose the modem to extreme conditions such as high humidity/rain, high temperatures,

direct sunlight, caustic/harsh chemicals, dust, or water.

z Do not try to disassemble or modify the modem. There is no user serviceable part inside and the

warranty would be void.

z Do not drop, hit or shake the modem. Do not use the modem under extreme vibrating condition.

z Do not pull the antenna or power supply cable. Attach/ detach by holding the connector.

z Connect the modem only according to the instruction manual. Failure to do it will void the warranty.

z In case of problem, please contact authorized dealer.

GENERAL

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3

CHAPTER 1

INTRODUCTION

Fargo Maestro 100 / Fargo Maestro 20 is a ready-to-use GSM modem for voice, data, fax and SMS
services. It also supports GPRS Class 10(Fargo Maestro 100) or Class 2(Fargo Maestro 20) for hi­speed data transfer. Fargo Maestro 100 / Fargo Maestro 20 can be easily controlled by using AT
command for all kinds of operations. With standard 9-pin RS232 port and telephone-like audio plug (via
optional cable) the Maestro 100 / Fargo Maestro 20 can be set up with minimal effort.

1.1. Package

The Fargo Maestro 100 / Fargo Maestro 20 package should include the following:

1.Fargo Maestro 20 or Fargo Maestro 100 x 1

2. Power cord with fuse x 1

3. Safety note x 1

1.2. Interfaces

SIM holder eject button Status indicator

SMA female antenna connector

15 pin Sub-D Female Connector

(RS232/Audio)

SIM holder

4-PIN connector (Power, Input / Output)

1.2.1. Status indicator

The LED will indicate different status of the modem:

- off Modem switched off

- on Modem is connecting to the network

- flashing slowly Modem is in idle mode

- flashing rapidly Modem is in transmission/communication (GSM only)

1.2.2. SMA female antenna connector

- Connect this to an external antenna with SMA male connector. Make sure the antenna is for the
GSM900/1800 frequency with impedance of 50ohm, and also connector is secured tightly.

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4

1.2.3. 15-PIN D-SUB Female connector (RS232 / Audio)

- The connector provides serial link and audio link to the modem.

Pin number Name EIA designation Type Note

1 DCD Data Carrier Detect Output
2 TX Transmit Data Input
3 BOOT Input Not used
4 MICROPHONE (+) Input
5 MICROPHONE (-) Input
6 RX Receive Data Output
7 DSR Data Set Ready Output
8 DTR Data Terminal Ready Input

9 GND Ground Ground
10 SPEAKER(+) Output
11 CTS Clear to Send Output
12 RTS Request to Send Input
13 RI Ring Indicator Output
14 RESET Input Pull low to reset
15 SPEAKER(-) Output

With 2V DC bias

output

Specification of microphone and speaker to be connected :

Parameters Min Typical Max Remark

Microphone current @2V / 2K Ohm 0.5 mA
Microphone input level 100

mVpp
Speaker output current 150 Ohm/ 1nF 16mA
Speaker impedance 32ohm
Please refer to the document “Application notes - Power supply & Audio” for more information of audio
connection.

1.2.4. 4-PIN connector (Power, Input / Output)

Pin assignment of 4-pin connector

Pin number Name Functions

1 I/O Input / Output port
2 ~INTR Interrupt function triggered by pulling this pin to

ground or LOW level; reserved for additional

functions with new firmware
3 POWER - DC power negative input
4 POWER+ DC power positive input

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5

A cable, included in the package shall be used for power supply connection:

5-32V DC

Supply

Connector Micro-Fit 3.0
(to Fargo Maestro)

Fuse holder
Fuse rating :
250V 2.5A

Stripped wire

I/O

Parameters Min Typical Max Remark

I/O In LOW voltage 0.5V
I/O In HIGH voltage 3V 5V
I/O out max. sink current 10mA

INTR

Parameters Min Typical Max Remark

Input LOW voltage 0 0.5V Triggered by pulling this pin to

LOW level ; otherwise leave it
open

• Please refers to Chapter 6 Appendix for using I/O and INTR signals. Contact your dealer if you need

wire for the I/O and INTR connection

1.2.5 Optional accessories

You may contact your sales agent for the following optional accessories:

External antenna

- Magnetic mount type

- Frequency GSM 900/1800 band

- Gain 3db

- VSWR < 1.5:1

- Height ~ 236 mm (including magnetic base)

- Cable : Type RG-174U length 2.5m

- SMA male connector on cable end

- color : back (SMA connector silver)

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6

Pin Assignment

‘Y’ cable

- Direct connection with standard 9­pin RS-232 port (DTE)

- Direct connection with common
handset of telephone for voice call

- Shielded cable

- Cable length 1.1m (w/ connector)

Sub-D 15

(male)

Sub-D 9
(female)

Plug

4P4C

11
23
3
41
54
62
76
84

95
10 2
11 8
12 7
13 9
14
15 3

Sub-D 9 pin

4p4c plug

DIN rail mount

- Quick attachment / detachment to
standard DIN rail

- Tin plated Steel

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7

CHAPTER 2

INSTALLATION

2.1 Mounting the modem

Use 2 pcs of M3 screw to mount the modem

When using optional DIN rail mount please refer to document “Installation of DIN rail mount”

Screw mounting slot

Bottom view

2.2 Installing the SIM card

Use a ball pen or paper clip to press the SIM holder eject button. The SIM holder will come out a little.
Then take out the SIM holder.

Note : DO NOT pull out the SIM holder without pushing the eject button.

Put the SIM card to the tray, make sure it has completely sit on the tray. Put the tray back into the slot.

2.3 Connecting the external antenna (SMA type)

Connect this to an external antenna with SMA male connector. Make sure the antenna is for the
GSM900/1800 frequency with impedance of 50ohm, and also connector is secured tightly.

Note : Please use antenna designed for GSM 900/1800 Mhz operation. Incorrect antenna will affect
communication and even damage the modem.

SMA male connector of

antenna cable

secure tightly

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g

2.4 Connect the modem to external device

You can use the optional ‘Y’ cable to connect the modem’s Sub-D connector to external
controller/computer. Note : The modem CANNOT be connected to the ‘Line’ jack of a landline telephone
directly.

Connection example using optional ‘Y’ cable:

4p4c
plug

Handset of phone

Maestro 100 /

Maestro 20

Sub-D 15 pin

DB-9

connector

RS-232 port of PC

2.5 Connecting the DC power supply

Connect the open ending of the included power cord to a DC supply. Refer to the following for power
supply requirement.

Input voltage range

Rated current

650 mA (Fargo Maestro 100)

450 mA (Fargo Maestro 20

5V – 32V

AC-DC Adaptor

or battery

(not included)

Solder wire

endin

s

Connect the connector to the modem. The modem will turn on automatically.

The status indicator on the modem will be lit when power on. After a few seconds it will go flashing
slowly (registered to the network successfully, refer section 1.2.1).

Chapter 3 describes how to communicate with the modem in Microsoft Windows

TM

environment.

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9

CHAPTER 3

WORKING WITH FARGO MAESTRO

3.1. Checking the modem (using Microsoft Windows
example)

3.1.1. On the first time power-up you can use a terminal software to communicate with the modem

through an RS-232 serial port. Following example is using the HyperTerminal in Windows 98.

TM

98 HyperTerminal as

3.1.2.

On Windows 98, start the HyperTerminal program. Assign a name for a new

session.

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3.1.3.

parity bit, 1 stop bit; Fargo Maestro 100 : 115200bps, 8bits, no parity bit, 1 stop bit)

Choose the correct Com port and baud rate settings (Fargo Maestro 20 : 9600bps, 8bits, no

.

3.1.4. On the terminal screen, type “AT” to check the “OK” response from the modem

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3.2. Basic Operation :

Followings are examples of some AT commands. Please refer to the AT Command guide for a full
description.

Note : Issue AT+CMEE=1 to have extended error code (+CME ERROR)

Description AT commands Modem response Comments

Network Registration

Checking

Receiving signal

strength

Receiving an
incoming call

Make a call

call

AT+CREG? CREG=<mode>,1 Modem registered to the network

CREG=<mode>,2 Registration lost, re-registration attempt

CREG=<mode>,0 Modem not registration on the network, no

registration attempt

AT+CSQ +CSQ: 20,0 The first parameter has to be at least 15 for normal

communication

RING An incoming call is waiting

ATA Answer the call

OK

ATD1234567; Don’t forget the « ; » at the end for « voice » call

OK Communication established

CME ERROR : 11 PIN code not entered (with + CMEE = 1 mode)

CME ERROR : 3 AOC credit exceeded or a communication is

already established

CME ERROR : 10 Cannot read the SIM card

ATD 112; Don’t forget the « ; » at the end for « voice » callMake an emergency

OK

Communication loss NO CARRIER

ATHHang up

OK

Enter PIN code

non-volatile memory

AT+CPIN=1234

OK PIN Code accepted

+CME ERROR : 16 Incorrect PIN Code (with +CMEE = 1 mode)

+CME ERROR : 3 PIN already entered (with +CMEE = 1 mode)

AT&WSaves parameters in

OK The configuration settings are stored

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CHAPTER 4

SPECIFICATION

z Dualband GSM 900 / 1800 Mhz

z Support Data, SMS, Voice and Fax

z Max Power Output: 2W(900Mhz), 1W(1800Mhz)

z Group 3 FAX support (Class 1 and 2)

z Fargo Maestro 100 : GPRS Class B Class 10 (4Rx+1Tx or 3Rx+2Tx) at maximum speed.*

Fargo Maestro 20 : GPRS Class B Class 2 (2Rx+1Tx) at maximum speed.*

z SimToolKit Class 2

z AT command set (GSM 07.05, GSM 07.07 and WAVECOM proprietary)

* Note : Available slot for GPRS connection is network dependent.

Power requirement :

Input voltage range

Rated current

Typical current consumption

GSM900 communication mode PCL=5 310mA 130mA 50mA
DCS1800 communication mode PCL=5 240mA 100mA 40mA
GPRS900 Class 10 PCL=5 520mA 220mA 80mA
GPRS1800 Class 10 PCL=0 390mA 160mA 70mA
Idle mode 35mA 16mA 8mA
Idle mode with power saving on RS232 12mA 11mA 5mA

650 mA (Fargo Maestro 100)

450 mA (Fargo Maestro 20)

5V – 32V

@5V @12V @32V

Interfaces :

z SIM holder

z 15 pin Sub-D connector (serial and audio connection)

z 4-pin power supply connector

z SMA antenna connector (50 ohm)

Dimensions:

z Overall size : 88mm x 60mm x 26mm

z Weight : 100g

z Temperature range: -15

o

C to +55oC operating

o

-20

C to +65oC storage

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CHAPTER 5

APPENDIX

5.1 Factory settings

The modem has the following factory settings. Please refer to the AT command document for the
meaning of each setting.

Related AT commands Factory Settings Description

AT+IPR 9600 (Fargo Maestro 20)

115200 (Fargo Maestro 100)
AT+IFC 2,2 DTE-DCE flow control
AT+ICF 3,4 DTE-DCE character framing
ATE 1 ECHO
AT&C 1 DCD signal
AT&D 2 DTR signal
ATQ 0 Result code suppression
ATV 1 Response format
AT&S 1 DSR signal
ATS0 0 Auto answer
AT+CLIP 0 Calling line ID presentation
AT+CRLP 0 Calling line ID restriction
AT+CSCS “PCCP437” Character set
AT+CMGF 1 Short Message format
AT+CSMP 1,67,0,0 Text mode parameters *
AT+CNMI 0,1,0,0 New message indication *
*Note: settings stored in SIM, not in modem

DTE-DCE data rate

5.2 Input / Output port

This port can be configured as either an input one or an output one.

To configure it as an input port, first issue AT+WIOW=2, 0 to disable the output port. Use AT+WIOR=3
to read the status of this input port. Response +WIOR: 0 represent Logic HIGH (>3V); Response
+WIOR: 1 represent Logic LOW (<0.5V) To use it as an output port, issue AT+WIOW=2,1 will turn it on
and it will drain current to ground. The current is recommended not to exceed 10 mA. Issue
AT+WIOW=2,0 will turn it off.

5.3 RS232 AUTO-ONLINE mode (power saving)

When being in the AUTO-ONLINE, the RS232 transceiver will shutdown most of its hardware to save
power if it does not detect a valid input for more than 100uS. The RS232 transceiver will wake up when
valid input is detected again.

By default, the RS232 transceiver is put in AUTO-ONLINE. This mode can be turned off by issuing
AT+WIOM=,16.

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CHAPTER 6

TROUBLESHOOTING

6.1 The modem’s LED does not light :

Check if the modem has connected to a 5-32V power supply properly

Check if the power connector is properly inserted

Check the fuse on the power cord

6.2 The modem’s LED lights but does not blink long time after power up

Check if a valid SIM card has been inserted properly

Check if the SIM card has been locked (refer to AT+CPIN command in AT command guide)

Check if the external has been connected properly to the modem

Check if the network coverage is available.

6.3 The modem does not response to the terminal program

Check if the RS-232 cable has been connected properly

Check if your program has proper setting. Factory setting of the modem is:

9600bps (for Fargo Maestro 20)

115200bps (for Fargo Maestro 100)

8 data bits

no parity bit

1 stop bit

6.4 No voice could be heard for the modem’s speaker output when a call is

answered

Make sure a voice call has been made (refer to AT command guide)

Enter the AT+SPEAKER=1 command

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6.5 Unsolicited messages on power up (Fargo Maestro with 100 TCP/IP only)

Fargo Maestro 100 with TCP/IP feature will enable some unsolicited messsges going out throught RS­232 port like these :

+CGREG: 0

+CREG: 0 ( and so on)

If you want to prevent these messages from coming out you can disable the TCP/IP feature by entering
the AT commands :

AT+WOPEN=0

AT&F

AT+SPEAKER=1

AT&W

You can enter AT+WOPEN=1 to re-enable TCP/IP feature.

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