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AL7024S-3V Series Designer's guide
Altec AL7024S-3V Series Designer's guide Manuals
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Altec AL7024S-3V Series Designer's guide manual available for free PDF download: Designer's Manual
Altec AL7024S-3V Series Designer's guide Designer's Manual (32 pages)
GSM Socket Modem
Brand:
Altec
| Category:
Modem
| Size: 0 MB
Table of Contents
Table of Contents
3
1 Introduction
5
Models Description
5
Summary
5
Product Specifications
6
2 Technical Overview
7
Block Diagramm of GSM Module
7
Supported Interfaces
7
F Igure 2-1. I Nterface B Lock D Iagram
7
3 Hardware Interface
8
Interface Signals
8
Signal Description
8
Table 3-1. Serial TTL Signals
9
Table 3-2. Signal Descriptions
10
Table 3-3. Signal Descriptions (Cont'D)
11
Table 3-4. Analog Electrical Characteristics
12
Table 3-3. Signal Descriptions (Cont'D)
12
Table 3-5. Digital Electrical Characteristics
13
Table 3-6. Absolute Maximum Ratings
14
Antenna Interface (RF)
15
RF Connector
15
Antenna Performance Recommendations
16
Antenna Installation
16
User Operation
16
Table 3.7 Antenna Performance Recommendations
16
Internal SIM Card Interface
17
SIM Card Reader Pins Supported
17
SIM Card Mechanical Drawings
18
External SIM Card Interface (-ES Option)
19
External SIM Card Reader Pins Supported
19
SIM Socket Pin Description
19
SIM Card Reader Integration
20
Layout Restrictions
20
Audio - Interface
21
Speaker-Circuit
21
Table 3.8. Headset Speaker Output at Maximum Volume Level
21
Microphone Circuit
22
Audio Circuit Design Considerations
22
Reset Signal (ON/OFF Signal)
23
Software Reset
23
4 Connectors and Peripheral Reference
24
Rf Connector
24
Microphone
24
Speaker
24
Antenna Cable
24
GSM Antenna
24
5 Design Guidelines
25
Electromagnetic Interference (EMI) Considerations
25
Grounding
26
Power Supply 5V (5V Models)
26
Power Supply 3.3V (3V Models)
27
Preferred Regulators
27
RF Antenna
28
Manufacturing Considerations
28
6 Module Dimensions
29
7 Regulatory Approvals
30
Considerations for Regulatory Approvals
30
Regulatory Requirements
30
Regulatory Statement
30
Safety Precautions
31
User Operation
31
Antenna Installation
31
Antenna Care and Replacement
31
Electronic Devices
31
8. Appendix A
32
8 Appendix A
32
Reference Documents
32
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