Specification Brand : diustou BulletPoint1 : RS232 Modbus relay module is equipped with mature and stable 8-bit MCU and RS232 level communication chip, using standard MODBUS RTU format RS232 communication protocol. BulletPoint2 : Baud rate, input signal, relay status, device address can be read by software/command. BulletPoint3 : Corresponds to chosen way,Can realize 1/2/3/4 way input signal detection, 1/2/3/4 way relay output. BulletPoint4 : Baud rate: 4800/9600/19200, default 9600bps, support power-down save, can be used for digital detection or power control occasions. BulletPoint5 : With diode lag current protection, optocoupler protection circuit, short response time, on-board 2-way/3-way/4-way 5V, 10A/250VAC 10A/30VDC relay, can be continuously absorbed 100,000 times. Color : One Color ExternallyAssignedProductIdentifier : 7345052688343 IncludedComponents : rs232 db9 ItemName : RS232 Modbus Relay 8-bit MCU and SP3232 Chip PLC Control DC5V 5.08mm Terminal 32V with Diode lag Current Protection & Opto Isolation (4 Way Relay) ItemPackageDimensions_Height : 30 millimeters ItemPackageDimensions_Length : 130 millimeters ItemPackageDimensions_Width : 80 millimeters ItemPackageQuantity : 1 ItemTypeKeyword : electromechanical-relays LowerTemperatureRating : -45 degrees_celsius Manufacturer : DIUSTOU MaximumSwitchingVoltage : 220 volts MechanicalLifeExpectancy : 100000 cycles ModelName : RBFRZGSU ModelNumber : A1R2MR40 NumberOfItems : 1 PartNumber : A1R2MR40 ProductDescription : RS232 Modbus Relay 8-bit MCU and SP3232 Chip PLC Control DC5V 5.08mm terminal 32V with Diode lag current protection & Opto Isolation (4 way relay) ProductSiteLaunchDate : 2024-06-18T07:01:34.758Z Size : 4-way UnitCount : 1 UnspscCode : 39122300 UpperTemperatureRating : 85 degrees_celsius