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AirLink® RX400
5G RedCap Router

Industry’s Most Power-Efficient Rugged 5G RedCap Router*

Purpose-built for critical infrastructure, the rugged RX400 combines right-sized 5G RedCap connectivity with industry-leading power efficiency to bring 5G to extreme environments— even where only solar power is available.

With 5G RedCap and LTE support, built-in serial, edge computing capabilities and private networking support, utilities, oil & gas organizations, and cities can modernize aging infrastructure today while future-proofing their communications. Delivered with defense-in-depth security from 30+ years of field-proven expertise.

*Based on comparison of market-available data as of November 2025 for comparable rugged MIL-STD 810 RedCap routers

5G RedCap + LTE Cat-4
1×1 Wi-Fi 6 (Optional)
1x Ethernet (1 Gbps)
Single/Dual RS-232

Dual-Band GNSS
IP64 and MIL-STD-810H
Rated
Powered by AirLink OS
and AirLink Complete

Use Cases

With industry-leading power efficiency, the RX400 enables solar and battery-powered installations in locations where traditional 5G solutions cannot operate.

Benefits

Ultra-Low Power 5G

Ultra-low power 5G RedCap (<1W idle) enables solar and battery-powered installations where traditional 5G routers cannot operate.

Rugged Design

IP64, MIL-STD design enables decades of reliable operation in harsh environments where equipment failures mean safety risks, regulatory penalties and costly emergency repairs.

Today Ready Tomorrow Proof

LTE Cat-4 and 5G RedCap support enables instant connectivity today with seamless 5G transition. Built-in RS-232 and edge computing modernize legacy systems without costly replacements or recertification.

Proven Excellence

Deploy with confidence using field-proven technology and secure cloud or on-premise remote management from a supplier trusted by leading utilities for decades.

Services & Support

AirLink Complete

Maximize your router investment with AirLink Complete — a comprehensive service package designed to empower you with the tools and support necessary to secure, optimize and effortlessly scale your router deployments.

AirLink Complete subscriptions include*:

AirLink Management Service (ALMS) for remote device
and security management
Direct access to expert technical support
Extended hardware warranty**

*With active subscription. 1-year subscription included with the router purchase.

**Up to 5 years maximum.

AirLink Premium Upgrade

Ideal for organizations managing mission-critical vehicle fleets, this service upgrade encompasses all the benefits of AirLink Complete, enhanced with:

Advanced Mobility Reporting: Offers comprehensive coverage and fleet reporting to monitor your network and vehicles.
Advance Replacement: Provides same-day shipping for in-warranty router replacements, minimizing downtime, spare inventory and keeping your operations running smoothly.

Flexible Management Options

Cloud Management (ALMS) - Included*

AirLink Management Service (ALMS) cloud management platform is included in your AirLink Complete or AirLink Premium subscription. Ideal for organizations that need the scalability and cost-effectiveness of a cloud platform. For organizations driving towards a zero-trust strategy, the Hybrid Cloud option adds an extra layer of control by requiring on-premise authorization for cloud operations and isolating management from operational networks.

*Included with active AirLink Complete/Premium subscriptions

On-Premise Management (AM/AMM) - Optional*

AirLink Manager (AM) and AirLink Mobility Manager (AMM) provide on-premise router management options for environments where cloud solutions are not an option. AM (on-premise platform) is ideal for organizations monitoring fixed assets, while AMM (available as on-premise or hosted platform) features advanced vehicle tracking capabilities for mobile deployments.

*AM/AMM is not included in AirLink Complete or AirLink Premium subscriptions and requires a separate paid license. Contact your Semtech representative for pricing and deployment options

Antennas

Accelerate your deployment with always-on, end-to-end connectivity provided by our portfolio of high performance antennas.

AirLink® RX400 – Router Specifications

Print Specs

KEY FEATURES
Cellular Radios	5G RedCap (Reduced Capability)
Wi-Fi	Single 1×1 MIMO Wi-Fi 6 (Optional)
Ethernet	Single Ethernet (1 Gbps)
Serial	Single/Dual RS-232
GNSS	Dual-band GNSS
CAN	–
I/O	1 GPIO
USB	USB Type-C® with power delivery
Bluetooth	–
IP Rating	Sealed Aluminum Housing (IP64 Rated)
Services	AirLink Complete (1 year included)
Operating System	AirLink OS
Management System	AirLink Management Service (ALMS) – Included with AirLink Complete subscription AirLink Manager (AM) / AirLink Mobility Manager (AMM) – Paid Option

CELLULAR
Region	Global
Technology	5G RedCap
Peak Downlink (Theoretical)	226 Mbps
Peak Uplink (Theoretical)	120 Mbps
Category	5G RedCap
MIMO	2×2
RF Connectors	SMA
SIM	Dual SIM (Nano-4FF)

FREQUENCY BANDS
	1	2	3	4	5	7	8	12	13	14	17	18	19	20	25	26
5G	n1	n2	n3	–	n5	n7	n8	n12	n13	n14	–	n18	–	n20	n25	n26
4G	B1	B2	B3	B4	B5	B7	B8	B12	B13	B14	B17	B18	B19	B20	B25	B26

FREQUENCY BANDS
	28	34	38	39	40	41	42	43	48	66	70	71	77	78	79	106
5G	n28	–	n38	–	n40	n41	–	–	n48	n66	n70	n71	n77	n78	n79	–
4G	B28	B34	B38	B39	B40	B41	B42	B43	B48	B66	B70	B71	–	–	–	B106

*For carrier specific band support please refer to the hardware user guide.

WIRELESS CERTIFICATION
Regulatory	FCC, IC/ISED, PTCRB, GCF Planned: CE, RED, RCM
Carrier	AT&T, Verizon Planned: T-Mobile, Telus, Rogers, Bell, Telstra
Public Safety	FirstNet® Capable
Other	Anterix Active (B106)
Part Numbers	1105304 RX400 1105305 RX400 with Wi-Fi

WI-FI (Optional)
Wi-Fi Standard	Wi-Fi 6
Access Point	Dual (2.4 & 5GHz)
Client (Depot/WAN)	Yes
Client & AP	Yes
Peak Throughput	600 Mbps
MIMO	Single 1×1
Security	WPA2/3 Personal WPA2/3 Transitional WPA2 Enterprise (Client Only)
Clients	16 per radio
SSID	1
Output Power	16 dBm (for 2.4 GHz) & 14 dBm (for 5 GHz) per chain conducted transmit power
Frequency	2.4/5 GHz
RF Connectors	SMA (Reverse Polarity)

ENVIRONMENTAL
Operating Temperature	-40°C to +70°C / -40°F to +158°F
Storage Temperature	-40°C to +85°C / -40°F to +185°F
Humidity	95% RH @ 60°C
Military Specification	Planned: MIL-STD-810H (Shock, Vibration, Thermal Shock, Humidity)
IP Rating	IP64

INDUSTRY CERTIFICATIONS
Safety	Planned: IECEE Certification Bodies Scheme (CB Scheme)
Vehicle Usage	Planned: E-Mark (UN ECE Regulation 10.05), ISO7637-2, SAE J1455 (Shock, Vibration, Electrical)
Environmental Directives	Planned: RoHS2, REACH, WEEE, Prop 65
Hazardous Environments	Planned: Class 1 Div 2 – Ambient temperatures of -30°C to +60°C Planned: IECEx & ATEX
Rail Usage	Planned: EN50155/EN45545 (Rolling Stock)

POWER
Input Voltage	7 to 36 VDC Redundant power input via USB-C (15W)
Power Consumption	Idle Power: 756 mW (63 mA @ 12VDC) – serial enabled Standby Mode Power: 24 mW +/-10% (2 mA @ 12 VDC) Triggered on low voltage, I/O or periodic timer
Power Modes	Low voltage disconnect to prevent battery drain Built-in protection against voltage transients including 5VDC engine cranking and +200 VDC load dump Ignition Sense with time delay shutdown Configurable features and ports to optimize power consumption

NETWORK AND ROUTING
Features	Semtech Cognitive Wireless IPv4 and IPv6 Routing Network Address Translation (NAT) Port Forwarding DHCP Server IP Passthrough LAN Segmentation IPv4 Passthrough and IPv6 Prefix Extension WAN/LAN Connection Policy Management Policy-Based Routing Configurable MTU size Static Routing WAN Ethernet
QoS	Application/Traffic Priority Queuing
WAN Monitors	Connection Failure Recovery

SECURITY
AAA	802.1x /Radius authentication with Wi-Fi and Ethernet
Firewall	Stateful firewall with port forwarding, DMZ
WLAN Encryption	WPA2/3 Personal / Enterprise
Firmware Update	Secure Firmware Update

LAN (ETHERNET/USB)
	USB to Ethernet

*For carrier specific band support please refer to the hardware user guide.

VPN
Features	IPsec protocol with IKEv1/IKEv2 FIPS 140-2 Level 1 compliant
Encryption	AES128/AES192/AES256
Hashing	SHA256/SHA384/SHA512
Key Exchange	DHGroup14/15/16/17/18/19/20/21 LAN to LAN and Host to LAN Up to 10 concurrent tunnels per link MOBIKE protocol IP compression Full/Split Tunnel Dead Peer Detection (DPD)

ROUTER MANAGEMENT INTERFACES
	ALMS (included with AirLink Complete subscription) AM/AMM (paid option) Local web user interface REST API (Beta) licensed via ALMS

EDGE COMPUTING
	Support for Edge Compute Docker Containerized Applications licensed via ALMS (Early Adopters)
RAM^1,2	600 MB
Storage (Flash)¹	500 MB
CPU	Dual Core ARM Cortex A55 (Dual Core ARMv8.2-A 64-bit)
	¹ Approximation available to containers (not device total) ² Depends on other enabled features

AirLink Complete (1 year included with router purchase)
Support	24/7 technical support*
Hardware Warranty	1-year standard hardware warranty Extended hardware warranty up to 5 years with current subscription**
Device Management	AirLink Management Service (ALMS)*
Software Updates	Unrestricted critical firmware updates through at least December 31st, 2030

*With current AirLink Complete subscription
**Full warranty terms are available at www.sierrawireless.com/end-user-warranty

AirLink Premium (optional upgrade) Includes all AirLink Complete features* and adds:
Advanced Mobility Reporting	Coverage and fleet reporting*
Advance Replacement	Same-day shipping for in-warranty router replacements*

*With current AirLink Premium subscription

RELIABILITY
MTBF	1105304 RX400 Without Wi-Fi : 96.94 years 1105305 RX400 Wi-Fi: 93.30 years Ground Benign, 25°C MTBF calculations performed per Telcordia “Reliability Prediction Procedure for Electronic Equipment” document number SR-332, Method I, Issue 3

ACCESSORIES
In The Box	RX400, DC Power Cable, Quick Start Guide, AirLink Complete Leaflet
Other Accessories (sold separately)	2000579 AC Adapter, 12VDC 6001529 DIN Rail Bracket 6001410 Serial 4-wire RS-232 cable 2000522 DC Power Cable For Antenna options visit: here

DIMENSIONS
Size	117.3 x 33 x 85 mm (117.3x33x94 mm including SMA connectors) 4.62 x 1.30 x 3.35″ (4.62×1.30×3.7″ including SMA connectors) Same bolt pattern as RV
Weight	350.5 g / 0.77 lb (RX400 Wi-Fi)

AirLink XR90 Dual 5G

AirLink® RX400
5G RedCap Router

Industry’s Most Power-Efficient Rugged 5G RedCap Router*

Use Cases