Confidential, the whole present document is the sole property of Fargo Telecom O/B on Fargo Services (HK) Ltd.GSM GPRS Modem900 / 1800USER MANUALRev.

8- 8 -2.4 Connect the modem to external deviceYou can use the optional ‘Y’ cable to connect the modem’s Sub-D connector to externalcontroller/computer

9- 9 -CHAPTER 3WORKING WITH Maestro 100 / Maestro 203.1. Checking the modem (using Microsoft WindowsTM HyperTerminal asexample)3.1.1. On the first ti

10- 10 -3.1.3. Choose the correct Com port and baud rate settings (9600bps, 8bits, no paritybit, 1 stop bit).3.1.4. On the terminal screen, type “AT”

11- 11 -3.2. Basic Operation :Followings are examples of some AT commands. Please refer to the AT Command guide for a fulldescription.Note : Issue AT+

12- 12 -CHAPTER 4SPECIFICATIONz Dualband GSM 900 / 1800 Mhzz Support Data, SMS, Voice and Faxz Max Power Output: 2W(900Mhz), 1W(1800Mhz)z Group 3

13- 13 -CHAPTER 5APPENDIX5.1 Factory settingsThe modem has the following factory settings. Please refer to the AT command document for themeaning of

14- 14 -CHAPTER 6TROUBLESHOOTING6.1 The modem’s LED does not light :Check if the modem has connected to a 5-32V power supply properlyCheck if the powe

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

1- 1 -CONTENTSSAFETY PRECUTIONS 2CHAPTER 1 INTRODUCTION 3CHAPTER 2 INSTALLATION 7CHAPTER 3 WORKING WITH MAESTRO 20 9CHAPTER 4 SPECIFICATI

2- 2 -SAFETY PRECUTIONSz The modem generates radio frequency (RF) power. When using the modem care must be taken onsafety issues related to RF interf

3- 3 -CHAPTER 1INTRODUCTIONMaestro 100 / Maestro 20 is a ready-to-use GSM modem for voice, data, fax and SMS services. It alsosupports GPRS Class 10(M

4- 4 -1.2.3. 15-PIN D-SUB Female connector (RS232 / Audio)- The connector provides serial link and audio link to the modem. Pin

5- 5 -A cable, included in the package shall be used for power supply connection:I/OParameters Min Typical Max RemarkI/O In LOW voltage 0.5VI/O In HIG

6- 6 -4p4c plug Pin AssignmentSub-D 15(male)Sub-D 9(female)Plug4P4C1123341546276849510 211 812 713 91415 3Sub-D 9 pin‘Y’ cable- Direct co

7- 7 -CHAPTER 2INSTALLATION2.1 Mounting the modemUse 2 pcs of M3 screw to mount the modemWhen using optional DIN rail mount please refer to document