User's Manual
LE920 Hardware User Guide
1vv0301026 Rev.8 2015-01-03
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 5 of 88
Contents
1. Introduction ................................................. 9
1.1. Scope ..................................................... 9
1.2. Audience .................................................. 9
1.3. Contact Information, Support .............................. 9
1.4. Document Organization .................................... 10
1.5. Text Conventions ......................................... 11
1.6. Related Documents ........................................ 11
2. General Product Description ................................. 12
2.1. Overview ................................................. 12
2.2. LE920 Mechanical Dimensions .............................. 13
2.3. Weight ................................................... 13
2.4. Environmental requirements ............................... 14
2.4.1. Temperature range .......................................... 14
2.4.2. RoHS compliance ............................................ 14
2.5. Operating Frequency ...................................... 15
2.5.1. LE920-EUG(cs1550f-B), LE920-EU (cs1647c) ................... 15
2.5.2. LE920-NAG (cs1550f-A) ...................................... 15
2.5.3. LE920-NA (cs1701), LE920-NA AUTO S (cs1717) ................ 16
2.5.4. LE920-CN (cs1648D) ......................................... 17
2.6. Sensitivity .............................................. 18
2.7. Conformity assessment issues .............................. 18
2.7.1. FCC/IC Regulatory notices .................................. 18
2.7.1.1. Modification statement .................................. 18
2.7.1.2. Interference statement .................................. 18
2.7.1.3. RF exposure ............................................. 18
2.7.1.4. FCC Class B digital device notice ....................... 19
2.7.1.5. Labelling Requirements for the Host device .............. 19
3. LE920 Module Connections .................................... 21
3.1. PIN-OUT .................................................. 21
3.1.1. LGA Pads Layout ............................................ 28
4. Hardware Commands ........................................... 29
4.1. Turning ON the LE920 ..................................... 29