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Product Details
Advantech SmartFlex SR304 2 SIM Cellular, Ethernet Modem/Wireless Router - BB-SR30400020
SmartFlex SR304 cellular router provides secure Internet connectivity for devices and LANs via cellular networks. It provides automatic wireless failover for wired networks, wireless connectivity for devices in remote locations such as industrial PCs, HMIs, traffic controllers, kiosks, meters, cameras, and much more.
SmartFlex serves well also for applications that require video transmitting because of download speed up to 150 Mbps and upload speed up to 50 Mbps.
Modular SmartFlex design can be ordered in many hardware options. Standard hardware configuration always includes 2 Ethernet 10/100 ports with 2 independent LANs/IP addresses - optionally with POE+ PSE or POE PD feature - 1 USB host port, 1 microSD cardholder, 2 SIM card holders for automatic failover to an alternate service provider, 2 binary inputs (I/O), 1 binary output (I/O), and onboard GPS/Glonass receiver.
As an extension to hardware interface options above can be modified by an additional 3× 10/100 ETH board (so totally up to 5 Ethernet ports configured for 3 independent LANs/IP addresses) or combined Ethernet/RS-232/485 board or RS-232/485 board (isolation strength up to 2.5kV). An optional built-in Wi-Fi module also available with industrial-grade operating temperature ranges from -40 to +75 °C.
SmartFlex transfer intelligence at the network edge with a powerful Cortex A8 CPU, 256 MB flash memory, 512 MB RAM, and 128kB M-RAM.
A secure Web interface allows users to configure and manage SmartFlex from remote locations. The SmartFlex supports real-time data encryption and the creation of VPN tunnels using IPsec, OpenVPN, GRE, etc. It supports standard and advanced networking features like DHCP, NAT, NAT-T, DynDNS, NTP, VRRP, control by SMS, and numerous other functions.
With an open Linux platform and the wide possibility of programming customer SW applications in Python, C/C++ or browser-based flow editor Node-RED the SmartFlex offers a real open development platform for Industrial IoT applications. The Advantech existing Router App library (User modules) with apps already developed to enhance specific router functionalities include industrial protocol conversions and support of IoT platforms such as MS Azure, Cumulocity, and others.
SmartFlex is easy to install individually and in mass deployments scenarios too by using a full-featured configuration and monitoring software tool WebAccess/DMP. Safe remote VPN access to customer devices and PCs connected to routers through Internet can be administrated by additional software WebAccess/VPN.
Features:
- 4G LTE Cat.4 Cellular connectivity
- Powerful CPU and enhanced memory
- Extended operational temperature range from -40 °C to +75 °C
- 10-60 VDC operation with and reverse polarity voltage protection
- Flexible port options - 3-port Switch, Ethernet and RS-232/422/485 serial ports with isolation
- GPS, GLONASS ,BeiDou, Galileo and QZSS support
- MicroSD card holder
- Sleep mode for solar and battery power applications
- Optional industrial grade Wi-Fi
- Linux based OS & SW customization
- Advanced security features
Shipping & Return
Return Policy
You need to have a Return Authorization (RA) number before returning any products to HSSL Technologies.
For a hard copy of this form and a shipping label, please include your request in the form below.
You can also request an RA online by submitting an RA Request via email. Once you have provided HSSL Technologies with the appropriate information, we will contact you with an assigned RA number.
Defective or DOA Products
DOA or defective products are returned for REPLACEMENT ONLY with the same product/model. Deviations from this policy may result in a 20% Returns Processing Service Charge.
- Defective products must be in the original factory carton with all original packing materials.
- The Return Authorization number must be on the shipping label, not the carton. Please do not write on the carton.
- Returns must be shipped freight prepaid. Products received freight collect, without an RA number, or not approved for return will be refused.
- Return Authorization numbers are valid for fourteen (14) days only. Products returned after expiration will be refused.
- HSSL credits are based on the purchase price or current price, whichever is lower.
General Return Terms
You may return most new, unopened items within 30 days of delivery for a full refund. We will also pay return shipping costs if the return is a result of our error (e.g., you received an incorrect or defective item).
You should expect to receive your refund within approximately six weeks of giving your package to the return shipper. This period includes:
- 5–10 business days for us to receive your return from the shipper
- 3–5 business days for us to process your return
- 5–10 business days for your bank to process the refund
If you need to return an item, please Contact Us with your order number and product details. We will respond quickly with instructions for returning items from your order.
Shipping Policy
We can ship to virtually any address in the world. Note that there are restrictions on some products, and certain products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates based on the availability of your items and the shipping options you select. Depending on the provider, estimated shipping dates may appear on the shipping quotes page.
Please also note that shipping rates for many items are weight-based. The weight of each item can be found on its product detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Has my order shipped?
Click the "My Account" link at the top right hand side of our site to check your orders status.
How do I change quantities or cancel an item in my order?
Click the "My Account" link at the top right hand side of our site to view orders you have placed. Then click the "Change quantities / cancel orders" link to find and edit your order. Please note that once an order has begun processing or has shipped, the order is no longer editable.
How do I track my order?
Click the "My Account" link at the top right hand side of our site to track your order.
My order never arrived.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
An item is missing from my shipment.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
My product is missing parts.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
When will my backorder arrive?
Backordered items are those which our suppliers are unable to predict when they will have more in stock, but as soon as they do, we will be able to ship the item to you.
Warranty
Why Choose HSSL?
We connect businesses with the right technology solutions to power growth, security, and efficiency.
Expertise
Backed by years of industry knowledge, our specialists understand the challenges modern businesses face.
Partnerships
We collaborate with top-tier technology providers to bring you innovative & high-performance products.
End-to-End Support
Our dedicated support ensures your systems stay optimized, secure, and ready for what’s next.
Scalable Solutions
Our adaptive approach ensures your IT infrastructure evolves seamlessly as your business expands.
Expert in IT & Security Solutions
At HSSL, we specialize in delivering cutting-edge IT infrastructure, cloud, and cybersecurity services that empower businesses to thrive in a digital-first world. Our trusted professionals provide reliable insights on:
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Digital Transformation Strategy
Empowering businesses to adapt and grow through modern, secure, and scalable digital infrastructure.
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Advanced Cybersecurity
Protecting your organization from digital threats with proactive monitoring and smart security frameworks.
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Cloud & Infrastructure Management
Optimizing cloud performance and IT operations for seamless scalability and improved business agility.
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Data Backup & Recovery
Ensuring business continuity through secure data management, automated backups, and rapid recovery solutions.
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Network & Endpoint Solutions
Delivering secure, high-performance networking systems that keep your business connected and efficient.
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Technology Consulting
Guiding organizations toward smarter IT investments and solutions that align with their long-term goals.
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