Compact Industrial Cellular Router

The Bivocom TR321-M Series LTE CAT M1/NB-IoT Router is a type of compact industrial cellular router based on LPWA technology, which adopts high-powered industrial 32-bits CPU, with multi-layer software detection and hardware protection mechanism to ensure reliability and stability of the device.

It supports worldwide carrier LTE CAT M1(eMTC)/NB-IoT cellular network. With rich VPN protocols (IPSEC, PPTP, L2TP, GRE, OpenVPN) to ensure the security of data transmission, and rich interfaces, such as RS232, RS485(Option), Ethernet Port, GPS (Option) and WIFI (Option), etc.

The TR321-M Series Router enables users to quickly access the Internet, to ensure secure and reliable data transmission. It’s ideal for IoT (Internet of Things) and M2M (Machine to Machine) applications, and has been widely used in many applications, such as Intelligent Transportation, Smart Grid, Oil and Gas, ATM, Vending Machine, Agricultural Irrigation, Environmental Protection, Industrial Automation, Energy Saving, Smart Home,etc.

Product Specification

  • CPU: Industrial 32-bit
  • FLASH: 16MB(Extendable to 32MB)
  • SDRAM:128MB(Extendable to 256MB)
Cellular Interface
  • Note: CAT NB1, EDGE/GPRS are unavailable on TR321-MS7A
 Cellular Antenna Interface
  • Number of Ports: 1
  • Note: Standard SMA female antenna interface, characteristic impedance 50Ω
SIM Interface
  • Number of Ports:1
  • Note: Standard drawer type card holder, support 1.8V/3V
  • SIM/UIM card, built-in 15KV ESD protection
Ethernet Port(RJ45)
  • Number of Ports: 2, 1x WAN(Can be configuredas LAN), 1x LAN
  • Note:10/100M, Auto MDI/MDIX, 1.5KV magnetic isolation protection
WIFI (Option)
  • Standard: IEEE802.11b/g/n for wireless LAN
  • Transmission Rates: IEEE802.11b/g: Up to 54Mbps, IEEE802.11n: Up to 300Mbps
  • Security: WEP, WPA/WPA2
  • TX Transmit Power:18dBm(11g), 21dBm(11b)
  • RX Sensitivity: <-72dBm@54Mpbs
GPS (Option)
  • Support from the built-in cellular module
  • Note: GPS may be unavailable for some cellular modules.
Serial Interface (5-PIN Industrial terminal block)
  • Number of interfaces: 2,1x RS232,1x RS485(Option)
  • Note: Built-in 15KV ESD protection, and TTL GPIOs is customisable


Serial Communication Parameters
  • Baudrate: 300~230400bits/s
  • Data Bit: 5, 6, 7, 8 bits
  • Stop Bit: 1, 1.5, 2 bits
  • Check: No, Even-parity, Odd Parity, SPACE and MARK
Power Requirements
  • Standard Power: DC 12V/1.5A
  • Power Range: DC 5~35V
  • Note: Built-in power inverting protection and over voltage protection
Power Consumption
  • Communication:123~250mA@12VDC
  • Standby: 110~200mA@12VDC
  • Scheduled Shutdown: 2mA@12VDC
LED Indicators
  • Power, Signal Strength, System, Online, Alarm, WAN and LAN
  • EMC up to level 3 
  • Use NTP technology, build-in RTC
  • SIM/UIM card port built-in 15KV ESD protection
  • Warranty Period: 12 months
Environmental Limits
  • Operating Temperature:-35~+75ºC(-31~+167 ºF)
  • Storage Temperature: -40~+80ºC(-40~+176 ºF)
  • Ambient Relative Humidity: 93%±3%,non-condensing
Physical Characteristics
  • Protection Class: IP30, Housing and system are isolated safely, ideal for industrial automation application
  • Housing: Iron
  • Weight: 320g, router host only, accessories not included.
  • Dimension: 100x100x23mm, Antenna and other accessories not included

Bivocom IoT Product Range

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