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485 bus coupler
- Product features：
I. Model Product name 485 bus coupler Model AJT-RS-485 Active isolation type and professional chips, realizing electrical isolation between ports; Professional automatic interface data flow control technology, judging and controlling data t
I. Model
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Product name |
485 bus coupler |
|
Model |
AJT-RS-485 |
Active isolation type and professional chips, realizing electrical isolation between ports;
Professional automatic interface data flow control technology, judging and controlling data transmission direction automatically;
1,500 W surge protection, 15 KV static electricity protection, and lighting stroke prevention;
Main performance parameters:
■ Interface standard: Compatible and superior to EIA/TIA RS-485 standard
■ Input/output interface: One-port RS-485 interface
■ Output/input interface: 4-port RS-485 interface
■ Communication rate: 300 bps-115.2 Kbps
■ Operating power supply: 9-24V DC/20mA, power supply of DC/DC module and anti-reverse connection protection
■ Interface quantity: Each way can be connected with 128 devices exceeding RS-485 interface
■ Communication distance: Each pair of RS485 line is added with 1,200 m transmission distance to the original transmission distance
■ Power supply and signal indication: Red power supply/data LED, 6 indicator lights in total
■ Operating mode: Asynchronous half duplex (RS-485)
■ Isolation performance: High-efficient isolation of all channels
■ Electrical interface: 2-digit wiring terminals
■ Transmission medium: 2-core twisted pair or shielded twisted pair
■ Dimensions: 100 mm X 70 mm X 43 mm
■ Shell: Quality plastic shell, high insulation safety coefficient, color: Industrial blue, computer white and black
■ Using environment: The temperature is from -40℃ to 85℃, and the relative humidity is from 5% to 95%.
■ Applicable to all communication software, irrelevant to protocols and plug and play.
■ Cascading: To RS485 end as many as 256 enhanced RS485 devices can be cascaded. (In practical use, the number of devices that can be cascaded depends on the 485 chip type that other devices use. At present, common 485 chips can be cascaded to 32 communication nodes; the enhanced type can be cascaded to as many as 256 communication nodes. Certainly, the number of nodes in practical use also relates to communication environment, wire material, communication distance and communication rate. )
