GSM модем iRZ TC65 Lite
User Manual
11
2.
Connection, Setting Up and Control
2.1. Functional Diagram
The functional diagram of the modem is represented on Fig.2.1.
2.2. Connection
,
Operation Mode
The application field of the modem can be divided into two nominal parts: personal computer
connection for Internet access and industrial use.
In both cases the connection sequence is the same.
Before feeding the power supply you need to install the SIM card in the modem (SIM card must
be enabled). To do this, you need:
·
to extract the SIM tray by presssing the SIM tray extract button (Fig.2.4.1);
·
to install the SIM card in the SIM tray;
·
to insert the SIM tray into the modem.
No strong physical efforts must be applied while installing the SIM card.
Connect the GSM antenna and the commutation cable (RS232 or USB) to the antenna connector
(Fig.2.4.2). Thereupon you need to feed power supply to the modem through the connector RJ11
(Fig.2.4.1).
Note: GSM antenna, commutation cables and electrical power unit are not included in the
complete set configuration.
After the power supply feeding, the operating microcontroller analyses the availability of the
SIM tray. With the SIM tray available, the modem jumps to the operation mode: checks the input
voltage, commutates the UART0 pins of the GSM module to the external connector DB9, UART1
pins to the operating microcontroller, activates the GSM module. Then the registration proceeds, the
“Status” LED flashes frequently. After the registration is completed, the indicator flashes less
frequently (Table 2.6.1). In this mode the GSM module controls the flashing.
UART
UART
UART
ON/OFF
RS232
DTR
D+, D-
GSM module
DB9
USB
USB
UART0
SIM
Microcontroller
SIM
card
Interface converter
TL UART/RS232
Power converter
RJ11
UART1
Emerge
Status
