Unex SOM-300 Series, Быстрый старт

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Doc. No: Unex-QSG-21-003
2/23
A printed version of this document is an uncontrolled copy
© 2021 Unex Technology Corporation – Company Confidential
T
ABLE OF
C
ONTENTS
1. Objective ................................................................................................... 4
2. Reference ................................................................................................. 4
3. Limited Warranty Policy ............................................................................ 4
4. Safety Guidelines ...................................................................................... 5
5. Product Appearance ................................................................................. 5
6. Functional Block Diagram ......................................................................... 6
7. Electrical Characteristics .......................................................................... 7
7.1. Absolute Maximum Ratings .................................................................................. 7
7.2. Recommended Operating Conditions ................................................................... 7
7.3. Power Consumption .............................................................................................. 8
8. I/O Interfaces ............................................................................................ 9
8.1. Antenna Connectors ............................................................................................. 9
8.2. Mini PCIe Card Pinout .......................................................................................... 11
8.3. I/O Cable Pinout .................................................................................................. 12
8.4. DIP Switch ........................................................................................................... 13
9. Design-in Guidelines ............................................................................... 15
9.1. Power Line Traces .............................................................................................. 15
9.2. Power Sequence ................................................................................................. 15
9.3. Brown Out ........................................................................................................... 16
9.4. Grounding ........................................................................................................... 16
9.5. USB Data Lines ................................................................................................... 16
9.6. Serial Port ........................................................................................................... 17
9.7. Reset ................................................................................................................... 17
9.8. 1PPS ................................................................................................................... 17
9.9. Tamper Detection (Optional) ............................................................................... 19
9.9.1. Production Mode ................................................................................... 20
9.9.2. Test Mode ............................................................................................. 20
9.10. Thermal Management ......................................................................................... 20
10. Dimensions and Weight .......................................................................... 21
10.1. Component Keep Out Area ................................................................................. 22
11. Software Settings .................................................................................... 23
11.1. Verifying the Integration with a Host System ...................................................... 23
11.1.1. Linux ..................................................................................................... 23
L
IST OF
F
IGURES
9.9.1.1. Normal Mode ................................................................................ 20
9.9.1.2. Standby Mode .............................................................................. 20