Moxa

OnCell 3120-LTE-1 Series

2-port industrial LTE Cat. 1 cellular gateways

OnCell 3120-LTE-1 Series

Features and Benefits

  • Dual SIM failover and auto connection recovery for reliable cellular connectivity
  • Connect legacy RS-232/422/485 serial devices over Ethernet networks
  • Centralized monitoring and remote access with Moxa Remote Connect (MRC)
  • Low power consumption (40 mW in standby)

Certifications

  • CE
  • FCC
  • UL Listed
  • ATEX

Introduction

The OnCell 3120-LTE-1 Series is a range of LTE Cat.1 cellular gateways built for reliable connectivity, easy maintenance, and quick deployment in diverse environments. These gateways deliver stable Serial/Ethernet-to-cellular connections and ensure optimal reliability with GuaranLink cellular auto-recovery. With MRC Quick Link Ultra, operators gain complete visibility and secure remote control over both the OnCell gateway and its connected end devices, allowing for faster troubleshooting, minimal downtime, and more reliable industrial operations. Designed for edge applications, the OnCell gateways features power-saving technology that reduces standby consumption to below 40 mW via scheduling control, making them ideal for power-constrained remote applications. Full support for serial interfaces (RS-232/ 422/485) and flexible operation modes (Real COM, Reverse Real COM, RFC 2217, TCP Server/Client, UDP), these gateways ensure seamless compatibility with serial devices. Certification for IECEx, ATEX, and CID2 certifications also make the OnCell gateways suitable for hazardous and demanding applications, such as oil and gas.

Models in this series (6)

OnCell 3120-LTE-1-EUOnCell 3120-LTE-1-EU-TOnCell 3120-LTE-1-AUOnCell 3120-LTE-1-AU-T
Cellular StandardLTE Cat 1LTE Cat 1LTE Cat 1LTE Cat 1
LTE BandB1 (2100 MHz) / B3 (1800 MHz) / B7 (2600 MHz) / B8 (900 MHz) / B20 (800 MHz) / B28A (700 MHz)B1 (2100 MHz) / B3 (1800 MHz) / B7 (2600 MHz) / B8 (900 MHz) / B20 (800 MHz) / B28A (700 MHz)B1 (2100 MHz) / B3 (1800 MHz) / B5 (850 MHz) / B8 (900 MHz) / B9 (1800 MHz) / B18 (850 MHz) / B19 (850 MHz) / B26 (850 MHz) / B28 (700 MHz)B1 (2100 MHz) / B3 (1800 MHz) / B5 (850 MHz) / B8 (900 MHz) / B9 (1800 MHz) / B18 (850 MHz) / B19 (850 MHz) / B26 (850 MHz) / B28 (700 MHz)
Operating Temp.-0 to 55°C-30 to 70°C-0 to 55°C-30 to 70°C
MountingWall, DIN railWall, DIN railWall, DIN railWall, DIN rail
Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)
OnCell 3120-LTE-1-USOnCell 3120-LTE-1-US-T
Cellular StandardLTE Cat 1LTE Cat 1
LTE BandB2 (1900 MHz) / B4 (1700 MHz) / B5 (850 MHz) / B12 (700 MHz) / B13 (700 MHz) / B14 (700 MHz) / B66 (1700 MHz) / B71 (600 MHz)B2 (1900 MHz) / B4 (1700 MHz) / B5 (850 MHz) / B12 (700 MHz) / B13 (700 MHz) / B14 (700 MHz) / B66 (1700 MHz) / B71 (600 MHz)
Operating Temp.-0 to 55°C-30 to 70°C
MountingWall, DIN railWall, DIN rail
Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)

Specifications

Shown for OnCell 3120-LTE-1-AU. Per-model differences are listed in the selection grid above.

Cellular Interface

Cellular Standards
LTE Cat. 1 HSPA UMTS EDGE GPRS GSM
Data Rate
10 MHz bandwidth: 10.2 Mbps DL, 5.2 Mbps UL
Frequency Bands Supported
LTE Band 1 (2100 MHz) / LTE Band 3 (1800 MHz) / LTE Band 5 (850 MHz) / LTE Band 8 (900 MHz) / LTE Band 9 (1800 MHz) / LTE Band 18 (850 MHz) / LTE Band 19 (850 MHz) / LTE Band 26 (850 MHz) / LTE Band 28 (700 MHz) UMTS/HSPA 2100 MHz / 850 MHz / 800 MHz / 900 MHz
No. of SIMs
2
SIM Format
Nano SIM
Cellular Antenna Connectors
2 x SMA female

Ethernet Interface

10/100BaseT(X) Ports (RJ45 connector)
2
Standards
IEEE 802.3 for 10BaseT IEEE 802.3u for 100BaseT(X)

Input/Output Interface

Buttons
Reset button

USB Interface

No. of USB Ports
1
USB Connector
USB Type A
USB Standards
USB 2.0

Serial Interface

No. of Ports
1
Connector
DB9 male
Serial Standards
RS-232/422/485
Data Bits
5, 6, 7, 8
Stop Bits
1, 1.5, 2
Parity
None, Even, Odd, Space, Mark
Bitrate
75 bps to 921.6 kbps
Console Port
RS-232 (TxD, RxD, GND), 4-pin header output (115200, n, 8, 1)

Serial Signals

RS-232
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422
Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
Data+, Data-, GND
RS-485-4w
Tx+, Tx-, Rx+, Rx-, GND

Operation Modes

Standards
Real COM mode RFC2217 mode Reverse Real COM TCP Server mode TCP Client mode UDP mode

LED Interface

LED Indicators
SIGNAL, SYS, LAN1, LAN2, SERIAL

Ethernet Software Features

Management
DHCP Server DDNS Syslog Power Saving Wireless Search Utility
Network Protocols
ARP Telnet TCP/IP UDP SMTP SNMPv1/v2c/v3
Security
HTTPS
Time Management
SNTP Client
Tunneling
GRE
VPN
IPsec OpenVPN

Wireless Software Features

Management
GuaranLink Send SMS SMS Remote Control Moxa Remote Connect (MRC)

Firewall

Filter
MAC address Ports IP address

NAT

Features
NAT loopback Port forwarding

IPsec VPN

Authentication
PSK/X.509/RSA
Encryption
DES, 3DES, AES, MD5, SHA-1, DH2, DH5
Concurrent VPN Tunnels
5

OpenVPN

OpenVPN
OpenVPN (client and server), Tunnel mode (routing) and TAP mode (bridge)
Encryption
Blowfish CBC, DES CBC, DES-EDE3 CBC, AES-128/192/256 CBC
Concurrent VPN Tunnels
5

Power Parameters

Input Current
0.8 A (max.)
Input Voltage
9 to 36 VDC
Power Consumption
5 W (typ.)
Power Connector
Terminal block
Reverse Polarity Protection
Supported

Physical Characteristics

Housing
Metal
IP Rating
IP30
Dimensions
128.5 x 26 x 89.1 mm (5.06 x 1.02 x 3.51 in)
Weight
550 g (1.22 lb)
Installation
DIN-rail mounting Wall mounting (with optional kit)

Environmental Limits

Operating Temperature
0 to 55°C (32 to 131°F)
Storage Temperature (package included)
-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity
5 to 95% (non-condensing)

Standards and Certifications

EMC
EN 55032/35 EN 61000-6-2/-6-4
EMI
CISPR 32, FCC Part 15B Class A
EMS
IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m IEC 61000-4-4 EFT: Power: 1 kV; Signal: 1 kV IEC 61000-4-5 Surge: Power: 1 kV; Signal: 1 kV IEC 61000-4-6 CS: 10 kHz to 150 MHz; Signal: 80 V IEC 61000-4-8: 30 A/m
Freefall
IEC 60068-2-32
Hazardous Locations
ATEX IECEx Class I Division 2
Radio
RCM UKCA FCC ID: SLE-LE910CXNF leveraging module certification TELEC: 007-AH0035 leveraging module certification JATE: ADF-190023007 leveraging module certification KC: R-C-MXA-OnCell-3120 NCC: CCAF224G0100T1 SRRC: 26C71PK6L616
Carrier Approvals
PTCRB Verizon AT&T
Cellular Standards
EN 301 511 EN 301 908-1 EN 62311(MPE SAR) AS/CA S042 EN 301489-1/-52
Cybersecurity
EN 18031-1
Safety
IEC 60950-1 IEC 62368-1 UL 60950-1 UL 62368-1
Shock
IEC 60068-2-27
Vibration
IEC 60068-2-6
Green Product
RoHS, CRoHS, WEEE

MTBF

Time
585,775 hrs
Standards
Telcordia Standard SR-332

Warranty

Warranty Period
5 years
Details
See www.moxa.com/warranty

Resources

NameTypeVersionDate
Moxa Remote Connect Suite Software (MRC Client SW)31.5 MBSoftware Packagev4.2.0Jul 30, 2026 Jul 30, 2026 Release notes
Firmware for OnCell 3120-LTE-1 Series36.6 MBFirmwarev2.5.0Aug 27, 2025 Aug 27, 2025 Release notes
Moxa Remote Connect Suite Software (MRC Client SW)31.5 MBSoftware Packagev4.1.0Aug 01, 2025 Aug 01, 2025 Release notes
Firmware for OnCell 3120-LTE-1 Series (beta firmware for AU and EU models, HW Rev. 1.0.0)19.2 MBFirmwarev1.5.3Apr 08, 2022 Apr 08, 2022 Release notes
Firmware for OnCell 3120-LTE-1 Series (AU and EU models, HW Rev. 1.0.0)16.2 MBFirmwarev1.5Aug 11, 2021 Aug 11, 2021 Release notes
PComm Lite Serial Communication Tool for Windows1.6 MBUtilityv1.6Jul 27, 2021 Jul 27, 2021 Release notes
Windows Driver Manager (for Windows 7, Server 2008, or later))3.0 MBDriverv3.2Jul 06, 2020 Jul 06, 2020 Release notes
Library for OnCell 3120-LTE-1 Series31.3 KBLibraryv1.0Dec 30, 2019 Dec 30, 2019 Release notes
Manual for Moxa Remote Connect (MRC)7.1 MBManualv1.3Jul 29, 2026
Datasheet for OnCell 3120-LTE-1 Series749.4 KBDatasheetv1.19Jul 24, 2026
FOSS Statement for OnCell 3120-LTE-1 Series2.1 MBDeclarationv2.5.0Oct 01, 2025
Tech Note: The Security Hardening Guide for OnCell Series725.8 KBTech Notev1.0Aug 29, 2025
Manual for OnCell 3120-LTE-1 Series9.5 MBManualv1.5Aug 15, 2025
Declaration of Conformity (cybersecurity) for OnCell 3120-LTE-1 Series204.3 KBDeclarationv1.0Jul 31, 2025
Declaration of Conformity (EU/UK) for UC-3100/OnCell 3120 (-EU) Series319.9 KBDeclarationv1.0May 16, 2025
QIG for OnCell 3120-LTE-1 Series1.0 MBQIGv1.3Mar 10, 2023

Need pricing on the OnCell 3120-LTE-1 Series?

Tell us quantities and we'll come back with a quote.

Get a Quote