Repeater, Photoelectric Isolation Repeater 4Channel RS485 Hub Sharer Splitter Isolated Power Supply Module, Network Repeaters

Description

• Industrialgrade design, complete communication isolation, and rate up to 115.2Kbps.
• [Data Control]Data automatic control technology, automatically distinguish and control the data direction.
• Support multimachine communication, each channel can connect up to 128 nodes, and the longest distance is 2500 meters.
• Isolated power module: Built-in DC/DC isolated power module to achieve electrical isolation between ports. The equipment is suitable for long-term stable under the recommended value.
• 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.

Specification:
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
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.
Requirements For Wire Selection Using RS-485 Bus For Communication:
Use 2-core shielded twisted pair cable
Copper, wire diameter 0.50.75 millimeter,
Impedance 3888/km,
Capacitive 3050nF/km,
2-core shielded twisted-pair cable with a twisting distance of 20 mm (if the line distance is not more than 500 meters, the line standard can be appropriately reduced, but it must be a twisted pair)

Package List:
1 x Repeater

Note:
The device is suitable for 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

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