DT-9000 DT-9000 Manual of Commercial grade interface converter with lightning protection Ⅰ. Overview The DT-9000 converter is compatible with RS-232, RS-485 standard, to convert the RS-232 signal into RS485 signal, built in rapid transient voltage suppressor protector TVS; no need external power supply, the internal adopts the unique "RS-232 charge pump" to drive the whole circuit; circuit with zero delay automatic transceiver conversion unit, I/O circuit with preventing collision can automatically control data flow direction, thereby ensuring the program under the mode of RS-232 need not be changed, can be safely running in RS-485 mode, fully ensure to be suitable for existing software and hardware interface. Ⅱ. Performance parameter 1, Interface characteristics: interface compatible with EIA/TIA RS-232C, RS485 standard. 2, Electrical interface: RS-232 end DB9 hole type connector, RS-485 end DB9 needle type connector, with terminal. 3, Work mode: asynchronous half duplex differential transmission. 4, The transmission medium: twisted pair cable (wire diameter greater than or equal to 0.5MM) or shielded wire. 5, The transmission rate: 300-115.2KBPS 6, Size: 64mmX33mmX17mm 7, working environment:: -20℃ to 70℃, relative humidity of 5% to 95% 8, The transmission distance: less than 1200 meters (RS-485 end), within 15 meters (RS-232 end) 9, The protection of lightning surge protection grade: RS-485 interface of each line is 600W 10,Two kinds of communication modes: point to point / two line half duplex and point to multipoint / two line half duplex Note: in order to prevent the signal reflection and interference, need to be connected with a matching resistor in the circuit terminal (parameter 120Ω 1/4W), depend on the situation. Ⅲ. Connector and signal: RS-232C Pin standard DB9 Female(PIN)RS-232C Interface signal 1PROTECT GND 2SIN (RXD) 3SOUT (TXD) 4DTR 5GND 6DSR 7RTS 8CTS 9RI The RS-485 output signal and the terminal pin assignment DB9 Male
Connector Type:
DB9
Input Voltage :
12 Volts
voltage :
210
