Function: 1 Easy to install with rail mount, this serial server is the perfect solution for serial device cellular 2. It also supports 4G to wired, 4G to server, and wired to server using VPN and APN function. 3 Under a wide operating voltage range of AC 100-240V, this Ethernet serial server works with stability and safety. 4 The serial server also supports 13 frequencies in five modes for faster and more efficient data processing. 5 Based on existing operators, servers are designed to be extremely easy to use with greater coverage. Specifications: Item Type: Ethernet Serial Server Material: PC + ABS Model: PG46-GL-H Voltage Input: 100-240VAC Frequency: 50/60HZ Package List: 1 x Ethernet Serial Server 1 x Antenna 1 x User Manual Note: Use in voltage range parameters.