DWM-311 B1

Product Description

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The D-Link DWM-311 B1 is a compact industrial LTE Cat 4 M2M modem built for machine-to-machine connectivity, IoT infrastructure, and remote monitoring deployments where a lightweight, purpose-built cellular modem is the right tool — not a full router. With a single Gigabit Ethernet LAN port, single 3FF Micro-SIM slot, a hardened zinc-plated steel enclosure, an extreme operating range of -40°C to +85°C, and an ultra-compact form factor designed for DIN rail and wall-mount installation in industrial enclosures, the DWM-311 B1 keeps connected devices online via cellular LTE in conditions where consumer networking hardware fails. Verizon Open Development certified, it activates directly on ISPTek’s cellular SIM card data plans — pooled data across every deployed unit and a public static IP for remote device access, all managed from one account regardless of fleet size.

What It Does & Key Features:

• LTE CAT-4 Modem: Up to 150 Mbps download / 50 Mbps upload over LTE — sufficient throughput for SCADA telemetry, remote sensor data, industrial monitoring streams, ATM transactions, point-of-sale applications, and business-critical M2M data traffic that doesn’t require the peak bandwidth of Cat 12 or 5G hardware.
• Gigabit Ethernet LAN Port: The single 10/100/1000 Mbps Ethernet port connects directly to a PC, PLC, industrial controller, managed switch, or IoT gateway — providing a wired LAN output for connected devices while the cellular modem handles the upstream WAN connection independently.
• Extreme Operating Temperature Range (-40°C to +85°C): The widest operating range in its class — from Arctic cold-weather deployments to high-temperature industrial installations in proximity to heat-generating equipment. Handles unheated outdoor enclosures, furnace-adjacent factory installations, and desert field deployments where standard networking hardware thermal limits are exceeded.
• Compact Industrial Form Factor: Small enough for mounting in standard electrical panels, equipment racks, and industrial enclosures alongside existing control hardware — DIN rail and wall-mount compatible, with no ventilation requirements in a fanless sealed design that operates quietly in any installation orientation.
• Bridge Mode Operation: Operates as a transparent cellular modem passing the public IP directly to the connected device — keeping the network architecture simple at single-device M2M installations where routing overhead and NAT translation are unnecessary and a 1:1 device-to-IP mapping is preferred.
• Verizon Open Development Certified: Full carrier interoperability certification from Verizon’s Open Development program — the DWM-311 B1 has completed network testing and activates on Verizon-compatible cellular plans without compatibility risk, provisioning delays, or device rejection at activation.
• Linux OS with Verizon FoTA Support: OMA-DM firmware management keeps the DWM-311 B1 updated over the cellular connection — remote firmware updates without physical access to field-deployed units, and consistent software versioning across large distributed deployments managed through carrier-standard device management protocols.
• Low-Power DC 5V Operation: Operates on standard 5V DC power compatible with USB power adapters, 5V industrial power supplies, and single-board computer power rails — deployable alongside Raspberry Pi, industrial PCs, and embedded systems that share a common 5V power bus without requiring a separate voltage converter.

Works Across All Major U.S. Carrier Networks:

The DWM-311 B1’s LTE Cat 4 modem supports the primary LTE bands used for nationwide coverage on major U.S. carrier networks — including both the low-frequency band that forms the backbone of wide-area coverage and the AWS mid-band spectrum that delivers peak LTE performance in metro and suburban markets. Verizon Open Development certification is confirmed.

• Band B13 (700 MHz): The core low-frequency LTE band powering one of the nation’s largest carrier networks — 700 MHz spectrum penetrates steel enclosures, concrete industrial structures, and equipment panels where higher-frequency bands lose signal, making it the primary coverage band for indoor industrial M2M deployments.
• Band B4 / B66 (1700/2100 MHz AWS): The AWS mid-band spectrum delivering higher throughput in metro and dense suburban markets — the performance band for LTE when signal strength is adequate and throughput headroom matters for aggregating multiple sensor streams or serving multiple attached devices.
• Bands B2 (1900 MHz) and B5 (850 MHz): Extended coverage spectrum ensuring connectivity in suburban markets and locations at the edge of primary coverage zones — B5’s 850 MHz frequency provides indoor penetration comparable to Band 13 and covers carrier networks that use 850 MHz as their primary low-band LTE layer.
• Bands B12 (700 MHz) and B14 (FirstNet): Extended low-band LTE coverage reaching rural locations, manufacturing campuses outside metro areas, and remote field deployments — Band 14 provides access to FirstNet priority connectivity for deployments serving public safety, emergency response, and government infrastructure applications.

Enhanced with ISPTek’s Cellular SIM Card Data Plans:

• Public Static IP Addresses: A fixed public IP on the DWM-311 B1’s cellular SIM keeps each deployed modem reachable for remote access — IT teams and MSPs connect to field devices, run diagnostics, push configuration changes, and monitor status via the cellular IP without dynamic IP tracking or the overhead of a VPN concentrator for each deployed unit.
• Data Pooling Across Devices: All DWM-311 B1 SIMs on an ISPTek account share one data pool — low-usage M2M nodes monitoring at low poll rates contribute unused allocation to active nodes generating higher data volumes, eliminating overage charges across distributed IoT deployments with variable traffic patterns.
• Over 12 Custom Plans: From minimal-allocation IoT sensor plans for remote nodes generating kilobytes per day to mid-tier plans for modems aggregating industrial telemetry streams or serving as primary connectivity at small remote sites, ISPTek’s 12+ plan tiers cover every DWM-311 B1 deployment scenario.
• No Activation or Cancellation Fees: Activate a SIM when a new M2M unit goes into service, deactivate it when equipment is retired or a project ends — no fees in either direction, no minimum contract terms, no carrier friction as the deployed fleet grows and changes over time.
• Zero Touch Advanced Security: ISPTek’s automatic network-level protection activates on the cellular SIM the moment it’s connected — protecting the DWM-311 B1’s LTE interface at every deployed location without per-device security configuration or carrier portal management.

Who Benefits?

• Industrial IoT and M2M Integrators: The DWM-311 B1 is the right hardware choice for cost-effective M2M cellular connectivity at scale — compact enough for any enclosure, certified for Verizon’s network, and built for the industrial temperature extremes where standard hardware fails. ISPTek’s pooled SIM plans keep all cellular data billing on one account as fleet deployments expand.
• Utility and Infrastructure Monitoring: Electric metering, water distribution monitoring, gas pipeline telemetry, and environmental sensor networks use the DWM-311 B1 as the cellular backhaul link — the -40°C to +85°C operating range and DIN rail mounting handle outdoor utility enclosures in all climate conditions without hardware substitutions.
• ATM and Financial Kiosk Connectivity: ATM machines, cash recyclers, coin-operated kiosks, and financial terminals use the DWM-311 B1 for primary or backup cellular WAN — keeping transaction processing and remote management online at locations where wired ISP connectivity is unavailable or cost-prohibitive.
• Retail and POS Backup Connectivity: Installed as a cellular backup WAN path for point-of-sale systems, payment terminals, and inventory platforms at retail locations, the DWM-311 B1 activates its cellular connection when the primary ISP fails — keeping transactions authorized and platforms connected without staff intervention.
• Remote Site Primary Connectivity: Agricultural monitoring stations, remote equipment storage facilities, oil field control equipment, and rural infrastructure nodes use the DWM-311 B1 as their primary internet connection — cellular LTE over B13 or B12 reaches locations where wired ISP service isn’t available, at a hardware price point appropriate for low-margin remote site deployments.
• Embedded Systems and Edge Computing: Raspberry Pi clusters, industrial single-board computers, edge AI nodes, and embedded Linux systems use the DWM-311 B1 as the cellular WAN module — 5V power compatibility, compact form factor, and standard Ethernet connection integrate directly into embedded system builds without adapters or voltage conversion hardware.

The D-Link DWM-311 B1 delivers the essential LTE Cat 4 cellular connectivity that M2M deployments require — extreme temperature tolerance, a compact DIN-rail-compatible enclosure, Verizon certification, and simple bridge mode operation — without the cost or complexity of full-featured routers in applications that don’t need them. Paired with ISPTek’s cellular SIM card data plans for pooled data, a static IP, and zero-fee SIM management, the DWM-311 B1 is ready to activate immediately and keep deployed devices connected reliably across any fleet size.

View available data plans and activate your DWM-311 B1 today!