
I-7551 CR
Isolated RS-232 to RS-232 Converter. Supports operating temperatures between -25 to 75°C
- 3000 VDC 3-way Isolation Protection
- ESD Protection
- Power Input, +10 ~ +30 VDC
- Baud Rate, 300 ~ 115200 bps
- Operating Temperatures, -25 °C ~ +75 °C
- DIN-Rail
The I-7551 Photo 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-7551 provides the option of reconfiguring which control signal is used. CTS can be selected instead of DSR, and RTS instead of DTR.
The I-7551 incorporates two DC-to-DC converters, the isolation site of the I-7551 is located in the input and output interface circuit. In other words, the I-7551 is 3-way isolation RS-232 to RS-232 repeater.
Interface
Input: TxD, RxD, CTS, RTS, GND or TxD, RxD, DSR, DTR, GND Jumpers JP1 and JP2 are used to select the RS-232 input source type
Output: TxD, RxD, CTS, RTS, GND or TxD, RxD, DSR, DTR, GND
Transfer Distance: Max. 15 M at 115200 bps
Speed: 300 ~ 115200 bps
ESD Protection: Yes
3000 VDC Three Way Isolated Protection: Yes
Connection:
RS-232 Input: 9-Pin Female D-Sub
RS-232 Output: 9-Pin Male D-Sub
LED Indicators
Power/Communication: Yes
Power
Input Voltage Range: +10 VDC ~ +30 VDC (Non-isolated)
Power Consumption: 1.2 W
Mechanical
Casing: Plastic
Flammability: Fire Retardant Materials (UL94-V0 Level)
Dimensions (W x H x D): 72 mm x 118 mm x 35 mm
Installation: DIN-Rail
Environment
Operating Temperature: -25 °C ~ +75 °C
Storage Temperature: -30 °C ~ +75 °C
Humidity: 10 ~ 90% RH, non-condensing

