1. Product overview
1.1. Product Overview
USR-DR504-E is the M2M product launched in 2019 with the characteristics of high speed and low latency. European band. The software has perfect functions and covers most common application scenarios. It can realize two-way data transparent transmission from serial port to network by simple settings. And supports SMS mode, custom register packages, heartbeat packages , support 2 way socket connections, support TCP Server, support access USR cloud , support remote upgrade.