Bộ lặp và cách ly RS-232 ICP DAS I-7551 CR

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Isolated RS-232 to RS-232 Repeater

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Bộ lặp và cách ly RS-232 ICP DAS I-7551 CR


• 3000 VDC 3-way Isolation Protection
• ESD Protection
• Baud Rate, 300 ~ 115200 bps
• DIN-Rail


The I-7551 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 CTS/RTS pins of the I-7551 module can be reconfigured as DSR/DTR to meet requirements on different applications.

The I-7551 incorporates two DC-to-DC isolator, 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.


• Building Automation
• Factory Automation
• Machine Automation
• Remote Maintenance
• Remote Diagnosis
• Testing Equipment


Three-way Isolation 3000 VDC
EMS Protection
ESD (IEC 61000-4-2) Yes
LED Indicators
Status 1 x Power and Communication
COM Ports
Ports 1 x RS-232 Input
1 x RS-232 Output
Baud Rate 300 ~ 115200 bps
Input Range +10 VDC ~ +30 VDC (Non-isolated)
Consumption 1.2 W
Casing Plastic
Dimensions (mm) 72 x 35 x 118 (W x L x H)
Installation DIN-Rail Mounting
Operating Temperature -25 ~ +75 °C
Storage Temperature -30 ~ +75 °C
Humidity 10 ~ 90% RH, Non-condensing




Ordering Information

I-7551     CR  Isolated RS-232 to RS-232 Repeater (Blue Cover) (RoHS)

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