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Teltonika TRB256 Industrial NB-IoT Gateway

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$ 322.12


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Teltonika TRB256 Industrial NB-IoT Gateway

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The Teltonika TRB256 (TRB256 Industrial NB-IoT Gateway) is an industrial 4G LTE NB-IoT gateway that supports the 450 MHz frequency band. It has dual SIM, 1 x 10/100 Mbps Ethernet port, RS232, RS485 and configurable I/Os, and runs from a 9 – 30 VDC supply.

$ 322.12 322.12 AUD $ 322.12 incl. GST

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Teltonika TRB256 at a glance

The Teltonika TRB256 (TRB256 Industrial NB-IoT Gateway) is an industrial 4G LTE NB-IoT gateway that supports the 450 MHz frequency band. It has dual SIM, 1 x 10/100 Mbps Ethernet port, RS232, RS485 and configurable I/Os, and runs from a 9 – 30 VDC supply.

ARC IP Networks supplies the genuine TRB256 Industrial NB-IoT Gateway from Australian stock with the full manufacturer's warranty.

ConnectivityLTE Cat M1 / Cat NB1, NB2 / EGPRS
450 MHz bandGreater LTE signal penetration
SIMDual SIM with auto-failover
Ethernet1 x 10/100 Mbps RJ45
SerialRS232 and RS485
Power input9 – 30 VDC
Operating temp-40 °C to 75 °C
Size / weight83 x 25 x 74.2 mm, 165 g

Best for

  • M2M and IoT applications that need NB-IoT or Cat M1 connectivity
  • Sites where greater LTE signal penetration on the 450 MHz band helps coverage
  • Connecting serial, Modbus, DNP3 or DLMS/COSEM equipment and I/Os to a cellular network

Consider instead

  • Teltonika TRB255: a similar dual SIM gateway with LTE Cat M1, NB-IoT, RS232/RS485 and I/Os
  • Teltonika TRB245: a dual SIM gateway with the same serial and I/O interfaces on LTE Cat 4, 3G and 2G

Key features

Connectivity: 4G/LTE Cat M1/Cat NB1, NB2/EGPRS

450 Mhz Band: Greater LTE signal penetration and increased connectivity coverage

Dual Sim: Auto-failover, backup WAN, and more switching scenarios

Interfaces: Ethernet, I/Os, and Serial (RS232, RS485) interfaces with 16-pin terminal block

Teltonika TRB256 specifications

Mobile

Mobile module4G LTE Cat M1 up to 588 DL/ 1119 UL kbps, Cat NB2 up to 127 DL/158.5 UL kbps, Cat NB1 up to 32 DL/70 UL kbps (simultaneous operation of cellular and GNSS connectivity is not supported)
3GPP ReleaseRelease 14
SIM switch2 SIM cards, auto-switch cases: weak signal, data limit, SMS limit, on roaming, no network, network denied, data connection fail
StatusIMSI, ICCID, operator, operator state, data connection state, network type, bandwidth, connected band, signal strength (RSSI), SINR, RSRP, RSRQ, EC/IO, RSCP, data sent/received, LAC, TAC, cell ID, ARFCN, UARFCN, EARFCN, MCC, and MNC
SMSSMS status, SMS configuration, EMAIL to SMS, SMS to EMAIL, SMS to HTTP, SMS to SMS, scheduled SMS, SMS autoreply, SMPP
Block/Allow listOperator block/allow list (by country or separate operators)
Band managementBand lock, Used band status display
SIM idle protection serviceProvides the possibility to configure the router to periodically switch to the unused SIM card and establish a data connection in order to prevent the SIM card from being blocked
SIM PIN code managementSIM PIN code management enables setting, changing, or disabling the SIM card's PIN
APNAuto APN
BridgeDirect connection (bridge) between mobile ISP and device on LAN
PassthroughGateway assigns its mobile WAN IP address to another device on LAN

Ethernet

Ethernet1 x ETH port, 10/100 Mbps, compliance with IEEE 802.3, IEEE 802.3u, 802.3az standards, supports auto MDI/MDIX crossover

Network

RoutingStatic routing, Dynamic routing (BGP, OSPF v2, RIP v1/v2, EIGRP, NHRP), Policy based routing
Network protocolsTCP, UDP, IPv4, IPv6, ICMP, NTP, DNS, HTTP, HTTPS, SFTP, FTP, SMTP, SSL/TLS, ARP, VRRP, PPP, PPPoE, UPNP, SSH, DHCP, Telnet, SMPP, SNMP, MQTT, Wake On Lan (WOL), VXLAN
VoIP passthrough supportH.323 and SIP-alg protocol NAT helpers, allowing proper routing of VoIP packets
Connection monitoringPing Reboot, Wget Reboot, Periodic Reboot, LCP and ICMP for link inspection
FirewallPort forward, traffic rules, custom rules, TTL target customisation
Firewall status pageView all your Firewall statistics, rules, and rule counters
Port managementView device ports, enable and disable each of them, turn auto-configuration on or off, change their transmission speed, and so on
Network topologyVisual representation of your network, showing which devices are connected to which other devices
HotspotCaptive portal (hotspot), internal/external Radius server, Radius MAC authentication, SMS authorisation, SSO authentication, internal/external landing page, walled garden, user scripts, URL parameters, user groups, individual user or group limitations, user management, 9 default customisable themes and optionality to upload and download customised hotspot themes
DHCPStatic and dynamic IP allocation, DHCP relay, DHCP server configuration, status, static leases: MAC with wildcards
QoS / Smart Queue Management (SQM)Traffic priority queuing by source/destination, service, protocol or port, WMM, 802.11e
DDNSSupported >77 service providers, others can be configured manually
DNS over HTTPSDNS over HTTPS proxy enables secure DNS resolution by routing DNS queries over HTTPS
Network backupVRRP, Wired options, each of which can be used as an automatic Failover, Mobile
SSHFSPossibility to mount remote file system via SSH protocol
Traffic ManagementReal-time monitoring, wireless signal charts, traffic usage history

Security

AuthenticationPre-shared key, digital certificates, X.509 certificates, TACACS+, Internal & External RADIUS users authentication, IP & login attempts block, time-based login blocking, built-in random password generator
FirewallPreconfigured firewall rules can be enabled via WebUI, unlimited firewall configuration via CLI, DMZ, NAT, NAT-T, NAT64
Attack preventionDDOS prevention (SYN flood protection, SSH attack prevention, HTTP/HTTPS attack prevention), port scan prevention (SYN-FIN, SYN-RST, X-mas, NULL flags, FIN scan attacks)
VLANTag-based VLAN separation
Mobile quota controlMobile data limit, customizable period, start time, warning limit, phone number
WEB filterBlock list for blocking out unwanted websites, allow list for specifying allowed sites only
Access controlFlexible access control of SSH, Web interface, CLI and Telnet
Certificate ManagerCertificate creation tool allows to create CA, server, client, let's encrypt, SCEP certificates

Vpn

OpenVPNMultiple clients and a server can run simultaneously, 27 encryption methods
OpenVPN EncryptionDES-CBC 64, RC2-CBC 128, DES-EDE-CBC 128, DES-EDE3-CBC 192, DESX-CBC 192,
BF-CBC 128, RC2-40-CBC 40, CAST5-CBC 128, RC2-64-CBC 64, AES-128-CBC 128, AES-128-CFB 128, AES-128-CFB1 128, AES-128-CFB8 128, AES-128-OFB 128, AES-128-GCM 128, AES-192-CFB 192, AES-192-CFB1 192, AES-192-CFB8 192, AES-192-OFB 192, AES-192-CBC 192, AES-192-GCM 192, AES-256-GCM 256, AES-256-CFB 256, AES-256-CFB1 256, AES-256-CFB8 256, AES-256-OFB 256, AES-256-CBC 256IPsec
XFRM, IKEv1, IKEv2, with 14 encryption methods for IPsec (3DES, DES, AES128, AES192, AES256, AES128GCM8, AES192GCM8, AES256GCM8, AES128GCM12, AES192GCM12, AES256GCM12, AES128GCM16, AES192GCM16, AES256GCM16)GRE
GRE tunnel, GRE tunnel over IPsec supportPPTP, L2TP
Client/Server instances can run simultaneously, L2TPv3, L2TP over IPsec supportStunnel
Proxy designed to add TLS encryption functionality to existing clients and servers without any changes in the program’s codeDMVPN
Method of building scalable IPsec VPNs, Phase 2 and Phase 3 and Dual Hub supportSSTP
SSTP client instance supportZeroTier
ZeroTier VPN client supportWireGuard
WireGuard VPN client and server supportTinc

Bacnet

Supported modesRouter
Supported connection typesIP, RTU (RS485)
Configuration optionsSupport for multiple BACnet/IP interfaces, Network number assignment, Preconfigured BDT entries for BBMD (BACnet Broadcast Management Device)

Opc Ua

Supported modesClient, Server
Supported connection typesTCP

Modbus

Supported modesServer, Client
Supported connection typesRTU (RS232, RS485), TCP
Custom registersMODBUS TCP custom register block requests, which read/write to a file inside the router, and can be used to extend MODBUS TCP Client functionality
Supported data formats8-bit: INT, UINT; 16-bit: INT, UINT (MSB or LSB first); 32-bit: float, INT, UINT (ABCD (big-endian), DCBA (little-endian), CDAB, BADC), HEX, ASCII

Data To Server

ProtocolHTTP(S), MQTT, Azure MQTT
Data to serverExtract parameters from multiple sources and different protocols, and send them all to a single server; Custom LUA scripting, allowing scripts to utilize the router's Data to server feature

Mqtt Gateway

Modbus MQTT GatewayAllows sending commands and receiving data from MODBUS Server through MQTT broker

Dnp3

Supported modesStation, Outstation
Supported connection typesRS232, RS485, TCP

Dlms/Cosem

DLMS SupportDLMS - standard protocol for utility meter data exchange. Support trough serial and TCP
Supported modesClient
Supported connection typesRS232, RS485, TCP

Api

Teltonika Networks Web API (beta) supportExpand your device's possibilities by using a set of configurable API endpoints to retrieve or change data. For more information, please refer to this documentation: https://developers.teltonika-networks.com

Monitoring & Management

WEB UIHTTP/HTTPS, status, configuration, FW update, CLI, troubleshoot, multiple event log servers, firmware update availability notifications, event log, system log, kernel log, Internet status
FOTAFirmware update from server, automatic notification
SSHSSH (v1, v2)
SMSSMS status, SMS configuration
CallReboot, Status, Mobile data on/off, Output on/off, answer/hang-up with a timer
TR-069OpenACS, EasyCwmp, ACSLite, tGem, LibreACS, GenieACS, FreeACS, LibCWMP, Friendly tech, AVSystem
MQTTMQTT Broker, MQTT publisher
SNMPSNMP (v1, v2, v3), SNMP Trap, Brute force protection
JSON-RPCManagement API over HTTP/HTTPS
RMSTeltonika Remote Management System (RMS)

Iot Platforms

ThingWorxAllows monitoring of: WAN Type, WAN IP, Mobile Operator Name, Mobile Signal Strength, Mobile Network Type
Cumulocity - Cloud of ThingsAllows monitoring of: Device Model, Revision and Serial Number, WAN Type and IP, Mobile Cell ID, ICCID, IMEI, Connection Type, Operator, Signal Strength. Has reboot and firmware upgrade actions
Azure IoT HubCan be configured with Data to Server to send all the available parameters to the cloud. Has Direct method support which allows to execute RutOS API calls on the IoT Hub. Also has Plug and Play integration with Device Provisioning Service that allows zero-touch device provisioning to IoT Hubs
AWS IoT CoreUtility to interact with the AWS cloud platform. Jobs Support: Call the device's API using AWS Jobs functionality

System Characteristics

CPUMediatek, 580 MHz, MIPS 24KEc
RAM128 MB
FLASH storage16 MB

Firmware/Configuration

WEB UIUpdate FW from file, check FW on server, configuration profiles, configuration backup
FOTAUpdate FW
RMSUpdate FW/configuration for multiple devices at once
Keep settingsUpdate FW without losing current configuration
Factory settings resetA full factory reset restores all system settings, including the IP address, PIN, and user data to the default manufacturer's configuration

Firmware Customisation

Operating systemRutOS (OpenWrt based Linux OS)
Supported languagesBusybox shell, Lua, C, C++
Development toolsSDK package with build environment provided
GPL customizationYou can create your own custom, branded firmware and web page application by changing colours, logos, and other elements in our firmware to fit your or your clients’ needs
Package ManagerThe Package Manager is a service used to install additional software on the device

Location Tracking

GNSSGPS. (GLONASS, BeiDou, Galileo and QZSS - under development); (simultaneous operation of GNSS and cellular connectivity is not supported)
CoordinatesGNSS coordinates via WebUI, SMS, TAVL, RMS
NMEANMEA 0183
NTRIPNTRIP protocol (Networked Transport of RTCM via Internet Protocol)
Server softwareSupported server software TAVL, RMS
GeofencingConfigurable multiple geofence zones

Serial

RS232Terminal block connector: TX, RX, RTS, CTS
RS485Terminal block connector: D+, D-, R+, R- (2 or 4 wire interface)
Serial functionsConsole, Serial over IP, Modem, MODBUS gateway, NTRIP Client

Input/Output

Input3x Configurable Digital Inputs, 0 - 6 V detected as logic low, 8 - 30 V detected as logic high, 1x Analog input (0 - 30 V)
Output3x Configurable Digital Outputs, Open collector output, max output 30 V, 300 mA
EventsEmail, RMS, SMS
I/O jugglerAllows to set certain I/O conditions to initiate event

Power

Connector2-pin in 16-pin industrial terminal block
Input voltage range9 – 30 VDC, reverse polarity protection, surge protection +/-1 kV 50 µs max
Power consumptionIdle: <2 W, Max: <3.5 W

Physical Interfaces

Ethernet1 x RJ45 port, 10/100 Mbps
I/O’s3 x Configurable digital I/O in 16-pin terminal block, 1 x analog input
Status LEDs3 x connection status LEDs, 3 x connection strength LEDs, 1 x power LED, 1 x Eth port status LED
SIM2 x SIM slots (Mini SIM – 2FF), 1.8 V/3 V, double stacked SIM tray
Power1 x 16-pin terminal block
Antennas1 x SMA connector for LTE, 1 x SMA connector for GNSS
RS2324-pin in 16-pin terminal block (TX, RX, RTS, CTS)
RS4854-pin in 16-pin terminal block (D+, D-, R+, R-)
ResetReboot/User default reset/Factory reset button

Physical Specification

Casing materialAnodised aluminium housing and panels
Dimensions (W x H x D)83 x 25 x 74.2 mm
Weight165 g
Mounting optionsDIN rail, wall mount, flat surface (all require additional kit)

Operating Environment

Operating temperature-40 °C to 75 °C
Operating humidity10% to 90% non-condensing
Ingress Protection RatingIP30

Specifications from Teltonika's official product data for the TRB256, checked October 2026.

The TRB256 Industrial NB-IoT Gateway in depth

Cellular connectivity with 450 MHz support

The TRB256 is an industrial 4G LTE NB-IoT gateway built for a broad range of IoT solutions. Its mobile module covers LTE Cat M1, Cat NB1 and Cat NB2, plus EGPRS. It also supports the 450 MHz frequency band, which Teltonika Networks describes as offering greater LTE signal penetration and increased connectivity coverage than standard frequencies. Dual SIM support gives auto-failover, backup WAN and other switching scenarios, including weak signal, data limit and no network.

Interfaces for industrial equipment

The gateway combines one 10/100 Mbps Ethernet port with RS232 and RS485 serial interfaces. It also has 3 configurable digital inputs, 3 configurable digital outputs and 1 analog input (0 - 30 V). The serial, I/O and power connections are on a 16-pin terminal block, and the I/O juggler can trigger events by email, RMS or SMS. Teltonika lists Modbus, DNP3, DLMS/COSEM, BACnet and OPC UA support, along with data to server over HTTP(S), MQTT and Azure MQTT.

Management, security and build

The TRB256 runs RutOS, an OpenWrt based Linux OS, and can be managed through the WebUI, SSH, SNMP, MQTT, FOTA and Teltonika Remote Management System (RMS). Security and VPN options include OpenVPN, IPsec, WireGuard, firewall rules, DDOS prevention and VLAN separation. The anodised aluminium housing measures 83 x 25 x 74.2 mm, weighs 165 g, is rated IP30 and operates from -40 °C to 75 °C.

Frequently asked questions

Straight answers about the TRB256 Industrial NB-IoT Gateway from the ARC IP Networks team. Last reviewed October 2026.

The Teltonika TRB256 is an industrial 4G LTE NB-IoT gateway for a broad range of IoT solutions. It has I/Os, RS232, RS485, an Ethernet port and dual SIM, and it supports the 450 MHz frequency band.

Yes. It has 2 x Mini SIM (2FF) slots in a double stacked tray. It can auto-switch on weak signal, data limit, SMS limit, roaming, no network, network denied or data connection fail.

It offers RS232 (TX, RX, RTS, CTS) and RS485 (D+, D-, R+, R-, 2 or 4 wire). It also has 3 configurable digital inputs, 3 configurable digital outputs and 1 analog input, all on a 16-pin terminal block.

It accepts 9 – 30 VDC through the 16-pin industrial terminal block, with reverse polarity protection and surge protection. Power consumption is under 2 W at idle and under 3.5 W at maximum.

Teltonika lists DIN rail, wall mount and flat surface mounting. All of them require an additional kit.

The box contains the TRB256 gateway, a 2X8PIN connector, 1 x hex key, a Quick Start Guide and the packaging box.

ARC IP Networks supplies the Teltonika TRB256 from Australian stock with the full manufacturer's warranty.

Buy the Teltonika TRB256 in Australia

ARC IP Networks supplies Teltonika industrial routers, gateways, switches and accessories to businesses, integrators, MSPs and installers across Australia.

  • Genuine Teltonika: sourced through Australian distribution.
  • Australian stock with the correct AU power supply where one is included.
  • Full manufacturer's warranty and local pre-sales and after-sales support.
  • Trade and project pricing available.

Planning an NB-IoT rollout with TRB256 gateways?

Ask ARC IP Networks for project pricing or a configured quote, or call us to check the right model for your site.

Brand Teltonika

Accurate Shipping Costs

Our online shipping calculator is designed to provide a final, accurate shipping cost based on the items in your cart and your delivery postcode. Shipping costs are calculated at checkout based on your order and delivery postcode. The final cost is calculated based on several factors which are automatically accounted for by our system, including:

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Delivery Times


 

Standard Processing


Most orders placed by 2pm AEDT are dispatched for next working day delivery. Larger orders may require 1-2 additional business days for processing. If timing is critical, please contact us to discuss expedited options (additional charges may apply).


Delivery Timeframes


Region

Processing Time

Express Delivery

Standard Delivery

VIC, NSW, SA, QLD Metro, TAS

1-2 business days

1-2 business days

2-4 business days

NT, WA, QLD Rural

1-2 business days

1-2 business days

3-5 business days

New Zealand

1-2 business days

2-3 business days

4-10 business days

Please note: Processing times may extend during peak periods such as Christmas and end of financial year.

Free Warehouse Pickup



Save on shipping costs with free pickup from our ARC IP Networks Blackburn warehouse. Simply place your order online or by phone, and collect during business hours (Monday to Friday). Please allow time for picking and packing. For urgent orders, call 1300 100 440 to confirm your order is ready.

ARC IP Networks Pickup Address: 6 George Street, Blackburn, VIC 3130


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All ARC IP Networks shipments are fully insured and trackable. Once dispatched, you'll receive an email with your tracking number and courier website details. If your item is confirmed lost or damaged by our courier, we'll arrange a replacement in consultation with you.


International Shipping



ARC IP Networks ships to New Zealand. Please note:


  • Import duties and taxes vary by country
  • Buyers are responsible for all customs charges
  • Contact your local customs authority before ordering
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  • Buyers cover all shipping costs for returns due to refused duties/taxes


Delivery Requirements


Signature Required


All deliveries must be signed for. If you won't be home, contact our Sales Support team to arrange Authority to Leave. Important: Authority to Leave voids shipping insurance if parcels are lost or stolen.


Delivery Restrictions


We do not deliver to PO Boxes or Parcel Lockers as our couriers cannot access them. Orders sent to these addresses will be returned, incurring redelivery fees.


Shipping Issue Resolution


ARC IP Networks works closely with our shipping partners to resolve any delivery issues quickly and fairly:


  1. Confirmation: We verify expected delivery dates with our shipping partners
  2. Investigation: Issues outside normal timeframes trigger formal investigations
  3. Communication: We keep you updated throughout the resolution process
  4. Resolution: Confirmed lost items are replaced or refunded after investigation completion


Please note: Refunds for lost, missing, or delayed orders cannot be processed until shipping partner investigations are complete. This does not affect your rights under the Australian Consumer Law, and refunds or replacements will be provided where required once loss or damage is confirmed.

Warranty & Faulty Products

ARC IP Networks complies with the Australian Consumer Law (ACL).

If a product is faulty, damaged, not of acceptable quality, or does not perform as advertised, you are entitled to a repair, replacement, or refund in accordance with ACL.

Manufacturer Warranty Returns

For faults developing after 14 days within the warranty period:

  • Contact ARC IP Networks first at info@arcip.com.au or 1300 100 440
  • We will assess the issue and coordinate with manufacturers, authorised service centres, or distributors on your behalf
  • Where required, a manufacturer RMA may be arranged
  • ARC IP Networks manages the return process and next steps

Dead on Arrival (DOA)

Products that arrive faulty or damaged must be reported within 14 days of delivery.

ARC IP Networks will arrange assessment, replacement, or refund as appropriate.

Change of Mind & Non-Faulty Returns

Change-of-mind returns must be requested within 14 days of delivery. For change-of-mind returns, the product must be unused, unopened, in its original packaging, and returned with all accessories and documentation. These conditions apply only to change-of-mind returns and do not limit or exclude your rights under the Australian Consumer Law. Some products are not eligible for change-of-mind returns, including:

  • Ex-demo products
  • Clearance or markdown items
  • Special-order items
  • Products clearly marked “No Change-of-Mind Returns”

Important

This does not affect your rights under Australian Consumer Law.

If a product is faulty, not of acceptable quality, or does not meet advertised specifications, it remains eligible for return regardless of category.

Refunds & Processing Timeframes

  • Approved refunds are processed within 7 business days of receiving returned goods
  • Refunds are issued to the original payment method, unless otherwise agreed
  • Replacement or repair may be offered where appropriate
  • Store credit may be offered only with customer consent

Handling fees and non-returnable service charges may not be refundable where permitted by law.


Restocking Fees

For approved change-of-mind or non-faulty returns, a 15% restocking fee applies.

  • Any applicable restocking fee will be clearly communicated prior to return approval
  • The fee will be deducted from the refund amount
  • Restocking fees do not apply to returns made under the Australian Consumer Law, including faulty, damaged, or misrepresented goods.

Return Shipping Costs

  • Change-of-mind returns: The customer is responsible for return shipping costs.
  • Faulty or defective products: ARC IP Networks covers return shipping under Australian Consumer Law.

Non-Warranty Repairs

For issues not covered by warranty:

  • ARC IP Networks will provide a quote before proceeding
  • Customers are responsible for all shipping and service costs
  • No repairs are undertaken without customer approval

Return Methods

Returns may be made:

  • In-store at ARC IP Networks – 6 George Street, Blackburn VIC 3130
  • Or by shipment as instructed by our support team

Proof of purchase is required for all returns.

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