Industrial 4G Modem SIM Card LTE RS232 RS485 with USB Port
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Product Highlights
- Global Network Connectivity: Supports 4G LTE, 3G, and 2G fallback for worldwide internet access.
- Versatile Interface Options: Offers RS232, RS485, USB, and RJ45 port configurations.
- Multi-GNSS Support: Compatible with GPS, Galileo, GLONASS, and Beidou systems.
- Dual Power Supply: Operates on DC 7-36V with adapter or terminal block options.
- Flexible Installation: Supports DIN-rail, wall-mount, and desktop mounting styles.
- Wide Operating Temperature: Designed for industrial and enterprise environments.
- Comprehensive Certifications: CE, RoHS, UKCA, UL, TUV, Anatel, FCC, RU, and ETL certified.
- OEM/ODM Customization: Available with custom branding and specific configuration options.
Product Attributes
- Customization
- Available
- Transmission Channel
- Wireless Modem
- Type
- Industrial
- Model NO.
- M400t-G
- Signal Type
- 4G / 3G
- Installation
- Rack-Mounted
- Clip Function
- Hard Modem
- Interface Type
- USB
- Transmission Rate
- 4G / 3G
- Application
- Industrial, Enterprise
- Transmission Mode
- Cellular Modem
- Class
- 4G Industrial Modem
- SIM Card Slot
- 1
- Ports (Optional)
- RS232, RS485, USB, RJ45
- GNSS
- GPS, Galileo, GLONASS, Beidou
- Power
- Dual Power. Adapter & Terminal
- DIN-Rail
- Option
- Antenna
- External Replaceable
- Case Material
- Metal
- Certificates
- CE, RoHS, UKCA, UL, TUV, Anatel, FCC, RU, ETL, et
- Transport Package
- Box
- Specification
- CE, Rohs, etc.
- Trademark
- E-Lins, OEM, ODM, Neutral
- Origin
- Shenzhen, China
- HS Code
- 8517629900
- Production Capacity
- 50, 000PCS/Month
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Product Description
Series No. | M400 |
P/N | M400t-G |
Class | Industrial for M2M, IoT, and in-vehicle use |
Cellular | 4G LTE, CAT4 |
USB | 1 * USB 2.0 female, Mini USB |
SIM | 1 * SIM slot |
GNSS | GPS, Galileo, GLONASS, Beidou |
Ports | RS232/RS485/USB/RJ45 port option |
At command | Support at command; Packed with GUI software |
Antennas | External style, replaceable for high gain |
Installation | Desktop, Wall-mount, Din-Rail |
Power | DC 7 - 36V, typical DC 9V 1A |
Trademark | E-Lins, Neutral, OEM, ODM and other customization |



The M400 series Cellular Modem is a complete wireless data modem providing global cellular network connectivity; where cellular signal available, with 4G/3G/2G fallback capabilities for ensured access to the internet anywhere, providing RS232/RS485/USB port option.

The M400 is an easy to install productivity tool designed to provide maximum accessibility to the mobile professional, allowing quick access to the internet for real-time business transactions, email, web browsing, and more

CELLULAR | |
Mobile Networks | 4G LTE (FDD/TDD); 3G UMTS WCDMA |
Interface | |
Antenna | 2~3 x SMA female interface, 50Ω, external detachable; Antenna for Main Cell, MIMO Cell, GPS |
UIM/SIM | 1.8V/3V 1 x SIM Slot |
Serial port | DB9 or DB15 (RS232/RS485 optional) or terminal block |
USB | USB 2.0 female, Mini USB |
GPS/GNSS (Optional) | GPS, Galileo, Beidou, GLONASS |
POWER | |
Power supply | DC 7V-36V, typical DC 9V1A |
Power consumption | Peak: 700mA@+9VDC Average: 85mA@+9VDC Idle: 30mA@+9VDC |
SOFTWARE | |
Minimum System Requirements | Windows, Linux, Mac OS,IOS, Symbian, Android, other OS Support USB/Serial port |
At command | Support at command; Packed with GUI software |
TCP/IP Stack (option) | Supported (For version support only) |
PHYSICAL INTERFACES | |
USB | 1 x USB 2.0 |
Status LEDs | 1 x SYS 1 x LINK |
Power | 1 x DC power connector 1 x Terminal connector |
Antennas | 2 x CELL 1 x GPS (for models with GPS feature) Replaceable connectors |
PHYSICAL SPECIFICATION | |
Casing material | Aluminium housing |
Dimensions (W x H x D) | 83mm x 25mm x 53mm |
Weight | 150g |
Mounting options | DIN rail, wall mount, flat surface (all require additional kit) |
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI152219". Items marked "" are certified.
Company Profile
E-Lins Main Business
Belonged to E-Lins group, E-Lins Technology is the leading developer and manufacturer of wireless M2M and telecom devices such as cellular 3G 4G 5G modem / router / repeater, and computer hardware peripherals in Shenzhen, China.
E-Lins Main Products
E-Lins Technology is a professional wireless product Manufacturer & Wholesaler. Main products are wireless cellular mobile modems, routers, repeaters and industrial PCS.
Routers
5G Router (5G NR SA NSA)
4G Router (FDD LTE and TDD LTE);
3G Router (DC-HSPA+, HSPA+, HSDPA, HSUPA);
2G Router (GSM, GPRS, EDGE);
CDMA Router (CDMA1X, CDMA2000 EVDO);
Modems
5G Modem (5G NR SA NSA)
4G Modem (FDD LTE and TDD LTE);
3G Modem (DC-HSPA+, HSPA+, HSDPA, HSUPA);
2G Modem (GSM, GPRS, EDGE);
CDMA Modem (CDMA1X, CDMA2000 EVDO);
Repeaters
3G, 4G, 5G
Industrial PCS
Rugged Embedded, Rackmount, Portable, Panel PCS
Outdoor AP
Point to point, multi-point centre
Pursuing a highly effective operation system to give customers more satisfaction, we also endeavor to improve our quality and service management. We passed ISO9001/14000 certification and CCC Certification (China Compulsory Certification). We are building an equal development platform to let our employees enjoy working and then share their pleasure with our customers.
Achieving high quality, E-Lins's products are manufactured in-house. In order to meet the requirements of our customers, E-Lins produces quality products that reach the international standards. We have professional QA department to ensure product quality.
With a strong development & research team, E-Lins has been providing OEM and ODM services for over 10 years. The distribution partnership will also be welcome.
Our clients include some of the major global distributors and importers throughout Asia, South and Latin America, Europe, Africa, the Middle East and North America, totally more than 53 countries and regions.
About Our Factory & Business Background
- Address
- Rm. 33, Unit B, Floor12, U Chuanggu, Xinniu Rd, Minzhi, Longhua, 518000, Shenzhen, Guangdong, China
- Terms of Payment
- T/T, PayPal, Western Union
- International Commercial Terms(Incoterms)
- FOB, CIF, EXW
- Average Lead Time
- Peak Season Lead Time, within 15 workdays, Off Season Lead Time, within 15 workdays
- Nearest Port
- Shenzhen, Hongkong, Guangzhou
Our Production Capability & Technical Expertise
- Main Products
- 5g Router, 4G Router, LTE Router, 5g Modem, 4G Modem, Swtich, Gateay, Controller, GSM Cellular Devices
Our Industry Experience & Global Business Record
- Export Year
- 1999-03-11
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What network standards does the modem support?
- It supports 4G LTE (FDD/TDD), 3G UMTS WCDMA, and 2G fallback for global connectivity.
- What serial and data ports are available?
- The device offers optional RS232, RS485, USB 2.0, and RJ45 interfaces.
- Does the modem support multiple satellite systems?
- Yes, it supports GPS, Galileo, GLONASS, and Beidou for accurate positioning.
- What are the power supply requirements?
- It accepts DC 7V-36V, typically 9V 1A, with options for adapter or terminal block power.
- How can the modem be installed?
- It supports DIN-rail, wall-mount, and desktop installation with optional kits.
- Is OEM or ODM service available?
- Yes, the product supports OEM, ODM, and neutral branding customization.
- What is the lead time for orders?
- Lead time is within 15 workdays for both peak and off-peak seasons.
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