Product Number: NB3701-L-G

Railway Router with 5x FE, -40..+70°C, LTE cat.4, GNSS, 24-48VDC,

Railway approved, compact onboard communication platform for future proof IP solutions. 5x Fast Ethernet. Temperature range -40...+70°C. LTE category 4 modem. Global Navigation Satellite System (GNSS). Powered by 24 V DC.

Availability: Global
Status: Active
Orderable items: 1

Ships from and sold by A5 IT.

Part numbers

NB3701-L-G is a product family. Each item number below is a separate orderable part — colour, put-up and length differ.

Item #	Type	EAN Code	Order
942998094	NB3701-L-G	4059759032851	Order online

Specifications

Product Overview

WAN	IPv4; IPv6; IP Passthrough; DynDNS Client; PPPoE; Voice Gateway (SIP, Call Routing, Audio);
License	NRSW 5.0 and newer version, included, if the hardware is capable: Vi(virtualization);V(voice);Ix(ITxPT);F(FMS2IP);Se(eSIM consum.);S(openVPN server);

Product Life Cycle

Life Cycle	Active - Product is available

General Information

Scope of delivery	Device, General safety instructions

More Interfaces

USB interface	1 x USB 2.0 socket to connect an approved USB storage device, USB Type A socket
SIM Cards	2x Mini SIM (2FF)
Local Management and Device Replacement	Management via Web (HTTPs); Command Line Interface (CLI) over SSH/Serial/Web; SNMP v1/v2c/v3; Discovery via LLDP, CDP, FDP, SONMP, EDP, IRDP
Ethernet Connector Type	5x Fast Ethernet (100Base-TX, Auto MDIX, 10/100 Mbps, M12 D-coded female)
Power Supply	1x M12 A-coded; EN50155 class S2/C1;
I/O Connection	Digital IO (2DI and 2DO); 1x M12 A coded female
I/O Port Functionality	Input Level: Low 0-5 VDC, High 9-60 VDC; Isolation 1500 VDC; Output Level: 0-60 VDC/1A; Relay with Normally Open, Normally Closed, COM;
Storage	4 GB flash
LEDs	7 LEDs (STAT, MOBx, WLANx, ...)

Radio technology

Load Balance	Link Prioritizatoin and Aggregation; Load Balancing; Diffserv; SFQ; HTB; Priority based Queuing

Modules

Description	2G	3G	4G	MIMO	Antenna Connector	Additional Radio Features
Module 1					GNSS: 1x TNC female;
Module 2	GSM/GPRS/EDGE Bands: B3 (1800), B8 (900)	DC-HSPA+/UMTS Bands: B1 (2100), B3 (1800), B8 (900)	LTE Cat. 4 Bands: B1, B3, B7, B8, B20, B28A	2x2 MIMO	4G: 2x TNC female;	CSFB; VoLTE;

Power requirements

Operating Voltage	24 ... 48 VDC (±30%);
Power Consumption	max. 15 W

Diagnostics features

Alarm and event actions	Email; SMS sending
Monitoring	Watchdogs (Hard- and Software); Link Supervision; MQTT Broker

Service

Other services	DNS Cache;

Software

Radius Server	External Radius Server Management User Authentication
Software features	Software Development Kit (SDK);
Software Version	5.0 (updates free of charge)
Operating system	NRSW (NetModule Router Software)
Switching	VLAN (802.1Q)
Redundancy	Multipath TCP, VRRP (Virtual Router Redundancy Protocol), RSTP (Rapid Spanning Tree Protocol)
Diagnostics	Netflow (Softflow), Ping, Traceroute, Tcpdump, Speed TestGNSS Diagnostics
Configuration	DHCP Client and Server
Security	Certificate Management (SCEP Client, Signing Requests), Certificate formats: PKCS12, PKCS7, PEM/DER, RSA/Ed25519 (OpenSSH/Dropbear), "Let's encrypt" support, Elliptic Curve Certificates (ECC), 802.1x for LAN, Stateful Firewall, Connection Tracking, Bridge Filtering
Time synchronisation	NTP Client and Server, SNTP Server
Routing	Destination, Policy, Multipath, OSPF, BGP, Multicast, TCP-MSS Clamping, NAT, NAPT, Masquerading, Mobile-IP
Management Software	Compatible with "Connectivity Suite"

Ambient conditions

Operating temperature	-40-+70 °C
Dimensions (WxHxD)	165/190 mm x 85 mm x 104 mm
Weight	1100 g
Mount Type	Flat surface mounting
Mating Side	all from front

EMC emitted immunity

EMV 06	Yes

Approvals

Basis Standard	CE according to 2014/53/EU (RED), 2011/65/EU (RoHS)
Transportation	EN 45545, EN 50155 class OT4/ST0
UK Regulation Compliance	UKCA Mark

Reliability

Guarantee	5 years
Warranty	5 years on hardware

Suitability

Suitability - Indoor	Yes

History

Update and Revision	Revision Number: 0.26 Revision Date: 08-11-2026

Resources

Belden NB3701-L-G technical datasheet Everything that Matters in Your 5G Deployment Now and in the Future Alles, was jetzt und in Zukunft für Ihre 5G-Implementierung wichtig ist NetModule Transportation Brochure NetModule Broschüre für den öffentlichen Verkehr NetModule Customer Success Stories NetModule Success Stories (German)Step into the future with NetModule's 5G technology!

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