GSM900 RF Solutions, GSM900 Datasheet - Page 14

• Manufacturer Part Number: GSM900
• Description: MODEM PCB MOUNTING DUAL BAND
• Manufacturer: RF Solutions

Specifications of GSM900

• Frequency: 900MHz, 1.8GHz
• Modulation Or Protocol: GSM, GPRS
• Data Interface: Connector, 40 Pin Header
• Operating Temperature: -40°C ~ 70°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Package / Case: -
• Voltage - Supply: -
• Power - Output: -
• Applications: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Antenna Connector: -
• Current - Transmitting: -
• Current - Receiving: -

Product Description
Huawei GTM900 GSM/GPRS Wireless Module
2.1 About This Chapter
2.2 Interfaces of Signal Connector on GTM900
2.2.1 Interface Signals
This chapter presents the interface signals of GTM900 from the following aspects:
Table 2-1 lists the detailed description of the interface signals of GTM900.
Table 2-1 Interface signals
1
2
3
4
5
6
7
8
9
10
11
12
13
14
No.
Interfaces of Signal Connector on GTM900
Antenna Interface
Batt+
Batt+
Batt+
Batt+
Batt+
GND
GND
GND
GND
GND
RXD2 at the
infrared
serial
interface
TXD2 at the
infrared
serial
interface
VDD
ADC
Chapter 2 Interface Signals
Signal
Huawei Technologies Proprietary
I
I
I
I
I
O/I
O/I
O/I
O/I
O/I
O
I
O
I
I/O
4.0 V
4.0 V
4.0 V
4.0 V
4.0 V
--
--
--
--
--
3.0 V
3.0 V
--
--
Interface
level
2-1
Supplying power
Supplying power
Supplying power
Supplying power
Supplying power
Providing working ground
Providing working ground
Providing working ground
Providing working ground
Providing working ground
Serial interface for traffic
control, supporting adaptive
rate
Serial interface for traffic
control, supporting adaptive
rate
Signal indication of normally
started GTM900
A/D conversion
Function
Chapter 2 Interface Signals
--
--
--
--
--
--
--
--
--
--
--
--
--
10bits
0-3V
Note