Beschreibung
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Specification:
Element 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
Output interface: 4
Load capacity: 128 knots per interface
Communication distance: 2500 meters shielded cable or twisted pair cable 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 40 mm / 4.5 x 3.5 x 1.6 inches.
Working environment: -30°C to 70°C relative humidity > 95% relative humidity.
Wiring instructions:
1. 485 communication line must use shielded twisted pair, preferably multiple strands as reserve, the longest is no longer than 2500 meters.
2. The wiring should be as far away as possible from high voltage cables, not parallel to power lines and not bundled.
3. The 485 bus must be a hand-in-hand bus structure and resolutely eliminate star connections and branch connections.
4. For more than 30 controllers or a cable length of more than 500 meters, the use of a 485 repeater is recommended.
5. The AC powered devices and chassis must be grounded and well grounded.
6. Connect the GND ground of all 485 devices to shielded wires.
Requirements for wire selection when using the bus for communication:
Use a 2-core shielded twisted pair cable
Copper, wire diameter 0.5 to 0.75 square millimetres,
Impedance 38~88Ω/km,
Capacitive resistance 30~50nF/km,
2-core shielded twisted pair cable with a twisting distance of 20 mm (when the line length is not more than 500 meters)
Package Dimensions : 15.2 x 15.2 x 5.4 cm; 190 g
Date First Available : 15 Feb 2022
Manufacturer : Hilitand
ASIN : B09RZZPS3Y
Item model number : Hilitandhd2kv7cfq36074
Country of origin : China
Guaranteed software updates until : unknown
Best Sellers Rank: 171,741 in Computer & Accessories (See Top 100 in Computer & Accessories) 945 in Network Repeaters
Customer reviews: 2.8 2.8 out of 5 stars 2 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‚A‘, ‚ready‘).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‚acrLink-click-metrics‘, ‚click‘, { „allowLinkDefault“: true }, function (event) { if (window.ue) { ue.count(„acrLinkClickCount“, (ue.count(„acrLinkClickCount“) || 0) + 1); } } ); } }); P.when(‚A‘, ‚cf‘).execute(function(A) { A.declarative(‚acrStarsLink-click-metrics‘, ‚click‘, { „allowLinkDefault“ : true }, function(event){ if(window.ue) { ue.count(„acrStarsLinkWithPopoverClickCount“, (ue.count(„acrStarsLinkWithPopoverClickCount“) || 0) + 1); } }); });
Multiple Protections:Positive and negative 15kV ESD protection, 600W dual channel TV protection, 2.5kV communication isolation. The power supply has a large range of 9-24VDC and reverse polarity protection.
Design:Industrial grade design, fully isolated communication, stable performance, excellent workmanship, greatly improved service life, easy operation, transfer rate up to 115.2Kbps.
Insulated Power Module: Built-in DC/DC insulated power module to achieve electrical insulation between ports. The device is suitable for long-term stable operation below the recommended value.
Multi-machine communication: supports multi-machine communication, each channel can connect up to 128 nodes and the longest transmission distance is 2500 meters. Do not exceed the limit value at any time, otherwise the device may be damaged
Unique technology: automatic control technology of data flow direction, automatic differentiation and control of data transmission direction. The operation of the device in extreme conditions does not harm, but may result in a loss of performance.
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