Founded in 2002, Tespro has evolved from a communication device manufacturer into an industrial IoT communication equipment supplier, providing products to Fortune 500 companies in global utility and smart city systems. The TR series industrial cellular routers are designed specifically for AMI/AMR backhaul environments. The product range includes seven different models across 4G and 5G, from the compact TR-224 (4G LTE, two 100Mbps LAN ports, RS485+RS232) to the powerful TR-345 (5G LTE, four 1000Mbps LAN ports, dual RS485+RS232). For wholesale buyers, the TR series offers three layers of infrastructure value.
For industrial ruggedness, all products in the TR series are rated for field operation. The operating temperature range covers minus 40 degrees Celsius to plus 75 degrees Celsius, working reliably whether in freezing winter outdoor substations or sweltering summer cabinet interiors. Wide-voltage DC input accepts 5 to 30 volts, with dual power supply paths supporting both DC jack and DC terminal block, and DIN-rail mounting is supported. All these specifications result from the actual conditions of utility cabinets, substations, and outdoor pole enclosures where routers are installed.
What communication protocols do TR series industrial routers support, and can they be pre-configured before shipping?
TR series routers support Modbus, DNP3, IEC 60870-5-104, CJ/T 188-2004, and other industrial protocols. As a common practice in wholesale procurement, Tespro can pre-load required protocol stacks and complete SIM provisioning before shipping. This means devices can be installed and used immediately upon arrival, significantly reducing on-site configuration work.
For multi-protocol serial connectivity, every TR series model includes both RS485 and RS232 ports. This design allows wholesale buyers to simplify inventory management — one model meets most compatibility needs without stocking different variants for different field interface types. For scalable remote management, the TR series supports device management through a cloud platform, enabling batch firmware updates and remote configuration changes. For large regional AMI deployments covering wide areas, this is the only efficient way to manage configuration changes across thousands of routers. For buyers evaluating industrial router wholesale partners, total cost of connectivity matters more than price per router. The right wholesale partner provides documented compliance with industrial certifications — temperature chamber test reports, EMC/EMI compliance certificates, component traceability, and demonstrated mean time between failure metrics exceeding 100,000 hours.
