I-7520U CR

Isolated RS-232 to 4 Channels RS-485 Converter.

RS-485 Active Hub

The I-7520U is isolated RS-232 to 4-ch RS-485 active star wiring hub, it has 4 independent RS-485 output channels and one RS-232 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-7520U provides 2 modes of baud rate setting, one is Self-Tuner mode and the other is fi xed 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-7520 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 Protection

The Short-circuit protection can automatically shut off the breakdown channel, this kind of design can suffi ce 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 refl ection of serial signals. The I-7520U includes a jumper-selectable 120Ω termination resistor for each channel (Default disable).

LED Indicators

The I-7520U has 6 LEDs to indicate the power status and network traffic. The TxD/RxD LED will flash when the unit is being sent out or received data.

Features:

• Automatic RS-485 Direction Control
• ESD Protection for the RS-232/422/485 Data Line
• Power Input, +10 ~ +30 VDC
• 3000 VDC Isolation Protection on the RS-485 side
• Transmission Speed of up to 115200 bps
• Wide operating temperature range from -25°C to 75°C
• DIN-Rail mount

Manufacturer's warranty: 12 months

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