Module chuyển đổi RS232-RS485/422 cách ly quang

Highlights : Power 9-30VADC / 350mA, connected to between + VS and GND, regardless of positive and negative, just then, can work, the product market must be positive connected to the positive and negative to the negative, otherwise it will not work. This product avoids this problem, without using a multimeter to measure the positive and negative power cord.

SP-218 Optically Isolated Interface Converter is RS-232C, RS-422 and RS-485 compliant. It can convert single-ended RS-232 signals into balanced differential RS-422 or RS-485 signals. Built-in photoelectric isolation The device is designed to protect RS-422 / RS-485 interfaces, using today's advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR (TM)), which can provide up to 2500Vrms of isolation voltage with fast transient voltage suppression protector and discharge tube. ) TVS tube and discharge tube under high-impedance state, when the TVS tube and discharge tube at both ends of the moment to withstand high-energy shock, it can be very high speed at both ends of the Impedance reduction, absorption of a large current, so that both ends of the voltage clamp in a predetermined value, the protection of the circuit components behind the transient high voltage shock damage. This protector can effectively suppress lightning (LIGHTNING) and ESD, to provide 1500W per line lightning surge protection power, and a variety of reasons in the line surge voltage and transient overvoltage, and a very small inter-electrode capacitance guarantee The RS-422 / RS-485 interface, high-speed transmission. The RS-232 interface is connected to a RS-232C standard interface via a DB9 female connector, and the RS-422 and RS-485 terminals are connected via RJ-45 and DB9 male connectors. The I / O circuit automatically controls the direction of the data flow without any handshaking signals (such as RTS, DTR, etc.), without jumper settings to achieve full-duplex (RS- 422), half-duplex (RS-485) mode conversion, plug and play. To ensure that all existing communication software and interface hardware, do not need to work on the previous RS-232 based on any software modifications. 
SP-218 optical isolated interface converter can provide reliable connection for point-to-point, point-to-multipoint communication. Point-to-multipoint Each converter can be connected to 128 RS-422 or RS-485 interface devices. The communication speed is 300-115.2Kbps, with power indicator and data flow indicator to indicate the fault condition. The supported communication methods are RS-232 to RS-422, RS-232 to RS-485 conversion.

Performance parameters: 
■ compatible RS-232, RS-485, RS-422 TIA / EIA standard 
■ automatic send / receive data, without external flow control signals (RTS), real three line (TXD.RXD.GND) communication system 
■ communication speed: 300bps-115.2Kbps 
■ can connect 128 RS-485 or RS-422 interface devices 
■ communication distance: 5,000 meters (of 9,600 bps) 
■ power and data flow indicator, can detect the point of failure 
■ work: asynchronous half-duplex (RS-485) or asynchronous full duplex (RS-422) universal, no jumper settings 
■ enhanced optical isolation (isolation voltage 2.5KVrms / 500VDC insulation), dedicated DC / DC module, RS-485 / each offers 422 
    lines 1500W lightning, surge, + / - 15KV ESD protection and prevention of common ground interference 
■ electrical Interface: DB9 pass to ten terminals 
 ■ transmission media: twisted pair or shielded cable 
■ dimensions: 97mm 65mm × 22mm × 
■ use of the environment: -40 ℃ to 85 ℃, relative humidity of 5% to% 95 
■ applies to all communication software, plug and play 
■ power supply: 9-30VADC / 350mA (regardless of positive negative, the market must be connected to an ordinary pair, or can not use, but this product with intelligent recognition, to overcome this problem) 
■ support DOS / WIN95 / WIN98 / WIN2000 / NT / XP Linux