Specification Brand : waveshare BulletPoint1 : 【Primary function】RS232 TO RS485 (B) converter is an industrial-grade rail-type active Active Digital Isolator. Converting the RS232 signal into balanced differential RS485 signal for interface converting, expanding nodes and long-distance communication. BulletPoint2 : 【1200m Long Distance Transmission】 Stable transmission on rate of 300~115200bps, about 1200m transmission distance of RS485, about 15m transmission distance of RS232 BulletPoint3 : 【Rail-Mount Support】easy To Combine Multi Rail-Mounted Serial Server Together, More Freely BulletPoint4 : 【Multiple Protection, Safe And Stable】 Onboard power and signal isolation, provide stable isolated voltage, high reliability and strong anti-interference. Onboard Lightningproof Diodes and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage protection BulletPoint5 : 【Application Examples】 The RS232 TO RS485 (B) can be widely used for point-to-point, point-to-multipoint, long distance cascaded communication network between two hosts, or between host and MCU/Peripheral. It also can be used in the application scenarios that require RS232 to RS485 conversion such as Industrial Automation and IoT. Color : Rail-Mount RS232 To RS485 (B) CompatibleDevices : GPS CompatibleDevices1 : Microcontroller CompatibleDevices2 : DIY Electronics Device CompatibleDevices3 : Robotics Device CompatibleDevices4 : IoT Device CompatibleDevices5 : Server ConnectorGender : Male-to-Male ConnectorType : Serial Adapter CurrentRating : 100 milliamps CustomerPackageType : Standard Packaging DataTransferRate : 0.001 gigabits_per_second ExternallyAssignedProductIdentifier : 6945279559320 ExternallyAssignedProductIdentifier1 : 790885856150 ExternallyAssignedProductIdentifier2 : 0790885856150 ExternallyAssignedProductIdentifier3 : 00843295100075 FinishType : Finish IndoorOutdoorUsage1 : outdoor IndoorOutdoorUsage2 : indoor InputVoltage : 5 volts ItemDisplayDimensions_Height : 1 inches ItemDisplayDimensions_Length : 3 inches ItemDisplayDimensions_Width : 1 inches ItemName : Rail-Mount RS232 To RS485 Converter (B), Active Digital Isolator, 600W Lightningproof & Anti-Surge,Multi-Isolation Protection,1.2km Transmission Distance,Suitable for Industrial/Agricultural/IoT, etc. ItemPackageDimensions_Height : 10.795 centimeters ItemPackageDimensions_Length : 3.4036 centimeters ItemPackageDimensions_Width : 8.1026 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : computer-cable-serial-adapters Manufacturer : Waveshare Material : acrylonitrile_butadiene_styrene_abs MaximumVoltage : 15 volts ModelNumber : RS232-RS485 B Ver-N MountingType : Rail Mount NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPins : 9 NumberOfPorts : 5 PartNumber : RS232-RS485 B Ver-N PowerPlugType : no_plug PowerSourceType : Dc Power Supply ProductDescription : Features Compatible with RS232/RS485 standard, converting the RS232 signal into balanced differential RS485 signal Stable transmission at the rate of 300~115200bps Onboard unibody power supply isolation, provides stable isolated voltage and needs no extra power supply for the isolated terminal Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provide over-current/over-voltage protection, improve shock resistance Integrates optional RS485 output terminal 120R resistor, enabled/disabled via a switch The onboard power supply screw terminal, allows 6V~36V DC wide range input Industrial rail-mount ABS case Specifications Product Type: Active electromagnetic isolated RS232 TO RS485 asynchronous bi-directional converter Power supply interface : Power supply 6~36V DC;Protection: Anti-reverse Baudrate: 300 ~ 115200bps Device Port: RS232/RS485 standard compatible (1) RS232 Connector: screw terminal Transmission distance : about 15m Transmission mode: point-to-point (2) RS485 Connector: screw terminal Direction control: Hardware automatic control Protection: 600W lightningproof and surge-suppress, 15KV ESD protection Terminal resistor: 120R, enabled/disabled via switch Transmission Distance: About 1.2km Transmission Mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) (3) Appearance Case: Rail-mount ABS case Dimensions : 91.6 × 23.3 × 58.7mm Development Resource/Online Instruction: n9.cl/d847e Package Content RS232 TO RS485 (B) x1 Screwdriver x1