Cheap 4g Modem Motherboard Module
| ITEM | Descriptions | ||
| CLM920 | LTE Module for CMCC | ||
| CLM920_EU | LTE Module for Europe | ||
| CLM920_CN | LTE Module for CMCC and CUCC | ||
| CLM920_CN3 | LTE Module for CMCC,CUCC and CTCC | ||
| Data Services | GPRS:DL 85.6kbps/UL 85.6kbps | ||
| EDGE:DL 236.8 kbps/UL 236.8kbps | |||
| WCDMA CS:DL 64 kbps/UL 64kbps | |||
| WCDMA PS:DL 384 kbps/UL 384 kbps | |||
| TDD-HSPA:DL 384kbps/UL 384kbps | |||
| TDD-HSPA+:DL 4.2Mbps/UL 2.2Mbps | |||
| HSPA+:DL21.6Mbps/UL 5.76Mbps | |||
| DC-HSPA+:DL 42Mbps/UL 5.76Mbps | |||
| LTE FDD:DL 100Mbps/UL 50Mbps @20M BW cat3 | |||
| LTE TDD:DL 61Mbps/UL 18Mbps @20M BM cat3 | |||
| CDMA 1X:DL 153.6Kbps/UL 153.6kbps | |||
| CDMA 1xEVD0r0: DL 2.4Mbps/UL 153kbps | |||
| CDMA 1xEVD0rA: DL 3.1Mbps/UL 1.8Mbps | |||
| Frequency Bands | LTE(FDD)B1/B3 | ||
| LTE(TDD)B38/B39 | |||
| UMTS/HSDPA/HSUPA Band B1 | |||
| TD-SCDMA B34/B39 | |||
| GSM/GPRS/EDGE Tri Band 900/1800/1900 | |||
| Operating Voltage | 3.3V~4.2V | ||
| Maximum Ajustable Current: | 40mA | ||
| OS Support | Windows7 | ||
| Windows 8 | |||
| Linux | |||
| Android | |||
| Dimensions (L*W*H) | 51mm×30mm | ||
| Weight | 16g | ||
|
Ambient CEMperature |
Operating | -10~ + 55℃ performance guarantied | |
| Extended | -40 ~ +80 ℃℃,for functionalities | ||
| Storage | -40 ~ +85 ℃ | ||

Custom Service
| Cooperation Mode | Based on Core Module Customization | The Whole Board Customization |
|---|---|---|
| Specification | Customize expanded board based on our core module | Offer complete mainboard customization based on the process platform we choose for you |
| Service | Provide device selection, design suggestions, plate type design; Principle diagram design, PCB design/modification, driver debug, driver source code, test source code, secondary development document writing, prototype; Provide upper development, and the follow-up with long-term technical support, quality tracking service. |
Provide device selection, design suggestions, plate type design Principle diagram design, PCB design/modification, driver debug, driver source code, test source code, secondary development document writing, prototype; Provide upper development, and the follow-up with long-term technical support, quality tracking service. |
| Development Cycle | Provide mainboard test usually in 8-10 weeks(no fly line) |
Provide mainboard test usually in 2-3 months(no fly line) |
| Deliver | Principle diagram, PCB, driver source code, prototype, etc. | Principle diagram, PCB, driver source code, prototype, etc. |
| Service Extension(optional) | Offer trial production/batch production, make production process, ensure the quality and delivery time; EMC/MI Test; Perfect quality assurance and after-sales service; Product system, software and hardware upgrades. |
Offer trial production/batch production, make production process, ensure the quality and delivery time; EMC/MI Test; Perfect quality assurance and after-sales service; Product system, software and hardware upgrades. |
| Expense | Low, according to user's requirements and difficulty level of R&D; The user who choose OEM could return part of R&D costs | High, according to user's requirements and difficulty level of R&D; The user who choose OEM could return part of R&D costs |
Hardware maintenance service
Hardware maintenance service means providing original factory maintenance,maintenance,repairing and recovering product performance for user’s mother board / core board .Including core board,baseboard,LCD,touch screen hardware fault test,electronic device replacement service.
Software and Hardware upgrading service
Software upgrading service means users installing operation system,installing equipment control software,according to customers’ requirement to customize winCE ,Linux OS . Hardware upgrading service means providing hardware upgrading scheme and hardware installing service.
Warranty Service
All parts product warranty period start form the purchase date, and under warranty is free of charge. The following circumstances products, not in warranty scope:
(1) Over the validation date of warranty;
(2) Belong to the user improper use or artificial damage;
(3) Without effective warranty certificate and invoice (can prove the goods in the warranty period excluded);
(4) Delivery product barcode or model not conform to physical commodity.
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