User's Manual

CL865-DUAL Hardware User Guide
1vv0301104 Rev.1 – 2014-03-07
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 5 of 70
Mod. 0805 2011-07 Rev.2
Contents
1. Introduction ................................................. 8
1.1. Scope ..................................................... 8
1.2. Audience .................................................. 8
1.3. Contact Information, Support .............................. 8
1.4. Document Organization ..................................... 9
1.5. Text Conventions ......................................... 10
1.6. Related Documents ........................................ 10
2. General Product Description ................................. 11
2.1. Overview ................................................. 11
2.2. Product Specifications ................................... 12
3. CL865 Mechanical Dimensions ................................. 13
4. CL865 module connections .................................... 14
4.1. PIN-OUT .................................................. 14
4.2. PIN Layout ............................................... 17
5. Hardware Commands ........................................... 18
5.1. Auto-Turning ON the CL865 ................................ 18
5.2. Turning OFF the CL865 .................................... 20
5.3. Hardware Unconditional Shutdown .......................... 22
6. Power Supply ................................................ 24
6.1. Power Supply Requirements ................................ 24
6.2. Power Consumption ........................................ 25
6.3. General Design Rules ..................................... 26
6.3.1. Electrical Design Guidelines ............................... 26
6.3.2. + 5V Input Source Power Supply Design Guidelines ........... 26
6.3.3. + 12V Input Source Power Supply Design Guidelines .......... 27
6.3.4. Battery Source Power Supply Design Guidelines .............. 28
6.3.5. Thermal Design Guidelines .................................. 29
6.3.6. Power Supply PCB layout Guidelines ......................... 30
7. Antenna ..................................................... 31