User's Manual

UE910 V2 Hardware User Guide
1VV0301065 Rev.1 – 2013-12-12
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 6 of 67
5.3.5. Thermal Design Guidelines ................................................................................................... 30
5.3.6. Power Supply PCB layout Guidelines .................................................................................... 31
6. Antenna .................................................................................................................................. 33
6.1. GSM/WCDMA Antenna Requirements ............................................................................. 33
6.2. GSM/WCDMA antenna – PCB line Guidelines ................................................................. 34
6.3. GSM/WCDMA Antenna installation Guidelines ....................................................................... 34
7. USB Port ................................................................................................................................ 36
8. Serial Port .............................................................................................................................. 37
8.1. Modem Serial Port 1 ......................................................................................................... 38
8.2. Modem Serial Port 2 ......................................................................................................... 40
8.3. RS232 Level Translation ................................................................................................... 41
9. Audio Section Overview ....................................................................................................... 42
9.1. Analog Audio Interface ...................................................................................................... 42
9.1.1. MIC Connection ..................................................................................................................... 43
9.1.2. LIN-IN Connection (TBD) ...................................................................................................... 44
9.1.3. EAR Connection .................................................................................................................... 45
9.2. Digital Voice Interface(DVI) ............................................................................................... 46
9.2.1. CODEC Example .................................................................................................................. 46
10. General Purpose I/O ........................................................................................................... 47
10.1. Logic Level Specification ............................................................................................... 48
10.2. Using a GPIO Pad as Input ........................................................................................... 48
10.3. Using a GPIO Pad as Output ......................................................................................... 49
10.4. Indication of Network Service Availability ...................................................................... 49
10.5. RTC Bypass Output ....................................................................................................... 50
10.6. VAUX/PWRMON Power Output .................................................................................... 50
11. ADC section ........................................................................................................................ 51
11.1. Description ..................................................................................................................... 51
11.2. Using ADC Converter .................................................................................................... 51
12. Mounting UE910 V2 on the Application ........................................................................... 52
12.1. General .......................................................................................................................... 52