User guide

Confidential, the whole present document is the sole property of Maestro Wireless
Solution Limited.
4
CHAPTER 1: Introduction
Maestro 100 is a ready-to-use GSM modem for voice, data, fax and SMS
services. It also supports GPRS Class 10 for hi-speed data transfer (except Maestro
100 Eco). Maestro 100 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 can be set up with minimal effort.
1. Package
The Maestro 100 package should include the following:
- Maestro 100/Ext/Eco/Lite x 1
- Power cord with fuse x 1
- Safety note x 1
2. Interfaces
SIM holder eject button Status indicator
a. Status indicator
The LED will indicate different status of the modem:
•
OFF Modem is 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)
b. SMA female antenna connector
Connect this to an external antenna with SMA male connector. Make sure the
antenna is for the correct GSM frequency with impedance of 50ohm, and also
connector is secured tightly.
SIM holder
4-PIN connector
(Power input/output)
15 pin Sub-D Female Connector
(RS232/Audio)
SMA female antenna
connector