I-7514U-G CR: Bộ chia 1 cổng RS-485 sang 4 cổng RS-485

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I-7514U-G CR Isolated 4-channel RS-485 Repeater/Hub/Splitter (Gray Cover) (RoHS)

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I-7514U-G CR: Bộ chia 1 cổng RS-485 sang 4 cổng RS-485


• True RS-485 Star Wiring Hub
• Independent RS-485 driver for each channel
• LEDs for indicating RS-485 TxD/RxD activity
• Auto Switching baud rate, 300 ~ 115200 bps and fixed baud rate setting via rotary switch, 1200 ~ 115200 bps
• Hubs can be daisy chained for 256 channels
• 120 Ω termination resistor for each channel
• Power Input, +10 ~ +30 VDC
• Operating Temperatures, -25 °C ~ +75 °C
• DIN-Rail


RS-485 Active Hub
The I-7514U is a 4-ch RS-485 active star wiring hub, it has 4 independent RS-485 output channels and one RS-485 input channel. Each output channel is equipped with an individual driver. The data from a master to the input channel will simultaneously be forwarded to all the four output channels.

Baud Rate Setting
The I-7514U provides 2 modes of baud rate setting, one is Self-Tuner mode and the other is fixed baud rate mode. The Self-Tuner mode can support Multiple Baud Rate and Multiple Data Format. The Self-Tuner design is exactly the same as I-7513 and I-7510 series. The Fixed baud rate mode offers a better quality for data transmission over long or lossy lines or electrically noisy environments.

RS-485 Short-Circuit
The Short-circuit protection can automatically shut off the breakdown channel, this kind of design can suffice to protect the communication system. When a connected RS-485 equipment breaks down, the breakdown channel will be isolated to ensure that other equipments work normally.

Termination resistors
In some critical environments, you may need to add termination resistors to prevent the reflection of serial signals. The I-7514U includes a 120 Ω termination resistor for each channel by jumper selectable (Default disable).

LED Indicators
The I-7514U has 6 LED to indicate the power status and network traffic. The TxD/RxD LED will flash when the unit is being sent out or received data.


Intra-module Isolation 2500 VDC Isolation


EMS Protection
ESD (IEC 61000-4-2) Yes


LED Indicators
Status 1 x Power and Communication


COM Ports
Ports 1 x RS-485 Input (Master)
4 x RS-485 Output (Slave)
Baud Rate 300 ~ 115200 bps via Self-Tuner mode; 1200 ~ 115200 bps via Fixed Baud Rate mode


Input Range +10 VDC ~ +30 VDC (Non-isolated)
Consumption 2.16 W


Casing Plastic
Dimensions (mm) 72 x 35 x 122 (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


Data sheet


Ordering information

I-7514U-G     CR  Isolated 4-channel RS-485 Repeater/Hub/Splitter (Gray Cover) (RoHS)

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