User manual

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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:

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

5V – 32V

Rated current

650 mA (Maestro 100)

450 mA (Maestro 20

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

environment.

RS-232 port of PC

Handset of phone

DB-9

connector

4p4c

plug

Sub-D 15 pin

connector

Maestro 100 /

Maestro 20

AC-DC Adaptor

or battery

(not included)

Solder wire

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