4. I-7551
4.1 I-7551 Pin Assignment and Specifications:
( RS-232_OUT )
I-7551
RS-232 to RS-232 Converter
One channel RS-232 Input
One channel RS-232 Output
( RS-232_IN)
Specifications
Introduction
The I-7551Photo coupler provides a complete full-duplex (including control signal) electrical isolation channel between two RS-232 devices. This isolation is an important consideration if a system uses different power sources, has noisy signals or must operate at different ground potentials.
The I-7551has the option of reconfiguring which control signal is used. CTS can be selected instead of DCD and RTS instead of DTR. The I-7551incorporates two DC-to-DC converters; the isolation site of I-7551is located in the input and output interface circuit. In other words, I-7551is three- way isolation RS-232-to- RS-232 converter.
Input:
RS-232 (TxD, RxD, CTS, RTS, GND or TxD, RxD, DCD, DTR, GND)
Output:
RS-232 (TxD, RxD, CTS, RTS, GND or TxD, RxD, DCD, DTR, GND)
Output Port: Three RS-485.
Three-wayIsolation voltage: 3000VDC 2500Vrms Channel to Channel isolation Power consumption: 1.5 W max.
Storage temperature: -25℃to +80℃
7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) --------------- | 64 |
