Adopting The SP3232EEN+SP485EN Chip Solution, The High-Speed Communication Is Stable, Reliable, And Has Good Compatibility; The Transmission Rate Is Stable, And The Reliable Communication Rate Is 300~921600bps; The Onboard Integrated Power Supply Isolation Can Provide Stable Isolation Voltage, And The Isolation End Does Not Require Additional Power Supply ; On-Board Integrated Digital Isolation Can Perform Signal Isolation, With High Reliability, Strong Anti-Interference And Low Power Consumption; On-Board (Transient Voltage Suppressor) Can Effectively Suppress Surge Voltages And Transient Spikes In The Circuit Voltage, Protection And Anti-Static; Onboard Resettable Fuses And Protection Diodes Stable Output Of Current And Voltage, Prevent Overcurrent And Overvoltage, And Improve Impact Resistance; Onboard 15KVESD Isolation Protection And 600W Surge Protection; Onboard 120R Terminal Resistor For RS485/RS422 Interface, Disabled By Default And Can Be Modified Through Jumper Cap Settings; The Onboard Terminal Power Supply Interface Supports A Wide Voltage Range Of 5~36V DC; An External Led Indicator Light Is Provided To Facilitate Viewing Of Power Supply And Signal Transceiver Status; Industrial RailType Abs Environmentally Friendly Shell, Compact In Size And Easy To Install; Product Type: Active Digital Isolation RS232 To RS85/422 Serial Port Converter Power Supply Interface: Power Supply Voltage: 5~36VDC; Interface Protection: Anti-ReveRSe Connection Communication Rate: 300~921600Bps (Reliable Long-Distance Communication) Device Interface: RS232, RS485/422 RS232 Interface Form: DB9 Female RS232 Interface Transmission Distance: About 15m Transmission Mode: Point-To-Point RS485/422 Interface Form: Terminal Block RS485/422 Interface Direction Control: Hardware Automatically Determines And Controls The Data Transmission Direction RS485/422 Interface Protection: Provides 600W Protection, Anti-Surge And 15KV Electrostatic Protection RS485/422 Interface Terminal Resistance: 120R, Can Be Enabled By Switch RS485/422 Interface Transmission Distance: About 1200m RS485/422 Interface Transmission Mode: Point-To-Multiple (Up To 32 Nodes, It Is Recommended To Add A Repeater For More Than 16 Nodes) Shell: RailType Abs Environmentally Friendly Shell, Suitable For 35mm DIN Rail Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour: Material:ABS Package Contents: 1 x Interface Converter 1 x Screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.