I-9144i CR: Module 4 cổng RS-422/485

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I-9144i CR 4-port Isolated RS-422/485 Module (RoHS)

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I-9144i CR: Module 4 cổng RS-422/485


• Includes 4 Isolated RS-422/485 Ports
• +/-4 kV ESD Protection on Each Port
• Baud Rate of up to 115200 bps
• LED Indicators for TxD, RxD and Power Status
• Internal 128-byte Hardware FIFO for Each Port
• 2500 VDC Isolation
• Built-in Self-Tuner or Auto-Direction Control


The I-9144i provides 4 isolated RS-422/485 serial ports. Each port is equipped with a 128-byte hardware FIFO and offers speeds up to 115.2 kbps with support for RS-422 full-duplex communication. In the harsh industrial environment, the onboard ESD protection devices can divert this potentially damaging charge away from sensitive circuitry and protect the I-9144i from permanent damage. The serial communication modules are designed for use with intelligent devices like bar code readers, serial printers, intelligent sensors, instrumentation equipment, computers, and almost any device with an RS-422/485 port.


Intra-module Isolation 2500 VDC


EMS Protection
ESD (IEC 61000-4-2) ±4 kV Contact for Each Channel


LED Indicators
Status 1 x Power and Communication
4 x TxD
4 x RxD


COM Ports
Ports 4 x RS-422/485
Baud Rate 115200 bps Max.
Parity None, Even, Odd, Mark, Space
Data Bit 5, 6, 7, 8
Stop Bit 1, 1.5, 2
FIFO Size Internal 128 Bytes for Each Port


Consumption 3 W (With 2 Resistors,1/4 Watt, 120 Ω 5%)


Dimensions (mm) 31 x 134 x 144 (W x L x H)


Operating Temperature -25 ~ +75 °C
Storage Temperature -40 ~ +85 °C
Humidity 10 ~ 90% RH, Non-condensing


Data sheet


Ordering information

I-9144i     CR  4-port Isolated RS-422/485 Module (RoHS)

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