TW810 LTE-M/NB-IoT Modem

Better coverage, lower power consumption


Seamlessly migration from your legacy GPRS/GSM modems to LTE CAT M1/NB1 Network

● Industrial MCU built in, rugged and reliable
● LTE Cat M1, NB-IoT and EDGE/GPRS compatible
● 1-RS232, 1-RS485
● Modbus RTU, TCP/UDP, AT Command
● Up to 5 sync data center
● Wide operation voltage: 5-35VDC
● Working temperature: -35C~+75C
  • Overview
  • Specifications
  • Case Study
  • Order Information
Bivocom TW810 series LTE-M/NB-IoT modems are designed for applications require better signal and coverage, lower consumption serial modem for sending their field serial data to remote server via LTE CAT M1 and NB-IoT network, applications like smart building, HVAC, underground pipeline monitor, or moving assets management.

Besides, it’s also a low cost and bandwidth solution to replace legacy GPRS/GSM serial modem, as we all know, GPRS/GSM network has been shut down in some regions by carriers, and more and more carriers have scheduled to shut down their GPRS/GSM network in the coming years, so Bivocom TW810 is a great fit and solution for those applications mentioned above.

TW810 has built in independent MCU chipset, and multi-layer software detection and hardware protection mechanism to ensure reliability and stability, and RS232, RS485 easy to connect to serial port sensors, PLC, IPC and controller. 

It supports transparent data transmission, helping you seamlessly transfer the data under MQTT*, Modbus RTU, TCP/UDP protocol to your remote server.

It supports up to 5 sync data center, which enables you to receive the same data in different location and backup your data. 

A powerful and ease to use config tool, allows you to choose different type of cellular network and protocols for your specific needs.
Item TW810
Cellular Interfaces

Antenna Connector
SIM Slot
1 × 50 Ω SMA Female
Serial Interface
1-RS232, 1-RS485
Power Requirements

Standard Power 
Input Voltage
DC 12V/0.5A
5-35 VDC

Network Protocols

MQTT*, Transparent (TCP Client/Server, UDP Client/Server), Modbus Gateway (Modbus RTU to Modbus TCP), COAP, DNS
(* Pending)

Config Tool, Cloud DMP* (Device Management Platform)
(* May require additional cost)
Ingress Protection
Housing & Weight
Metal, 208 g (0.46 lbs)
91 x 58 x 22 mm (3.58 x 2.28 x 0.87 in)
Desktop, Wall mounting
Operating Temperature -35°C to +75°C (-31℉ to +167℉)
LED Indicators
Warranty Period

Online, Act, Power, System
Standard: 12 Months
Extended: 2-5 Years*(Please refer to warranty policy)
CE, RCM*, FCC*, NBTC(* Under progress)
Dimension(mm) and Ports
Part Number*
Frequency Band*
LTE-M/NB-IoT Modem
1-RS232, 1-RS485
APAC: FDD-LTE B1/B3/B5/B8 GPRS/EDGE 900/1800 MHz

NA: FDD-LTE B2/B4/B12/B13

EMEA/ANZ: FDD-LTE B3/B8/B20/B28 GPRS/EDGE 900/1800Mhz

Global: FDD-LTE B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/(B39 CAT-M1 only); GPRS/EDGE 850/900/1800/1900Mhz

NB-IoT Modem
1-RS232, 1-RS485
Global: B1/B3/B5/B8/B20/B28
1. <...> in part number means different frequency band for different market, please ask Bivocom sales representatives or your local partner for more information.
2. Frequency band in the table are just part of our models, if you couldn't find the frequency band in your regions, please feel free to contact us.