Walfront Repeater Photoelectric Isolation Built‑in DC/DC Isolated Power Supply Module Industrial Grade 4‑Channel RS485 Hub Sharer Splitter 300bps-115.2Kbps
Amazon Price as of 04/16/2025 14:36 GMT+00:00
$35.21
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Product Description
Specification:
Item Type: Repeater
Compatibility: Compatible with RS-232, RS-485TIA/EIA standards
Working Voltage: DC: 9-24V
Rated Power: 0.5-1.2W
Input Interface: 1 RS-232/1 RS-485
Output Interface: 4 RS-485
Load Capacity: 128 nodes per interface
Communication Distance: 2500 meters shielded wire or twisted pair wire per interface
Communication Rate: 300bps-115.2Kbps
Installation Method: 35mm rail installation, 4-hole installation on the back plate
Structure Size: Approx. 115 x 90 x 40mm / 4.5 x 3.5 x 1.6in
Working Environment: -30℃ to 70℃
Relative humidity>95%RH
Wiring Notes:
1. 485 communication line must use shielded twisted pair, preferably multiple strands for spare, the longest is not more than 2500 meters.
2. The wiring should be as far away as possible from high-voltage wires, not parallel to power lines, and not to be bundled together.
3. 485 bus must be a hand-in-hand bus structure, and resolutely eliminate star connection and bifurcation connection.
4. If there are more than 30 controllers or the cable length is greater than 500 meters, it is recommended to use a 485 repeater.
5. The AC-powered equipment and the chassis must be grounded and well grounded.
6. Connect the GND ground of all 485 devices with shielded wires.
Package List:
1 x Repeater
Note:
The device is suitable for long‑term stable under the recommended value; the device will not be damaged when working under the limit value, but may cause performance degradation; do not exceed the limit value range at any time, otherwise it may cause damage to the device!
• 【HIGH TRANSMISSION RATE】-- Industrial‑grade design, complete communication isolation, stable performance and transmission rate up to 115.2Kbps
• 【DC/DC ISOLATED POWER SUPPLY】-- Built‑in DC/DC isolated power supply module to achieve electrical isolation between ports
• 【MULTI‑MACHINE COMMUNICATION】-- Support multi‑machine communication, each channel can connect up to 128 nodes, and the longest transmission distance is 2500 meters
• 【DATA AUTOMATIC CONTROL】-- Data automatic control technology, automatically distinguish and control the data transmission direction
• 【PROVIDE MULTIPLE Multiple measures, plus or minus 15KV ESD protection, 600W dual‑channel TVS 2.5KV communication isolation
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