Industrial Grade Optical Isolation 4-channel RS485 HUB Sharer Splitter 1 in 4 Out Support RS232 Wi485-4

$46.59
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    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

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    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

    1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

    Delivery Time

    Airmail and Airmail Registered Area Estimated Delivery Time
    United States, Canada 7-25 business days
    Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
    United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
    Italy, Brazil, Russia, South Africa 10-45 business days
    Other countries 10-35 business days
    Expedited Shipping 3-10 business days to Worldwide

    Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

  •  Returns & Refund

    Last updated October 05, 2022

    Returns

    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388
    Israel

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.

    Refunds

    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.

    Exceptions

    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.

    Questions

    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888
    sales@alexnld.com

     


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Introduction:
 
4-way isolated RS485 hub is a kind of high-performance industrial RS485 signal hub and repeater, which is born to solve the networking problem of RS485 star structure. The product can automatically sense the direction of data flow and the baud rate of communication, without any control or handshake signal, so as to ensure the transparent transmission of data. The power supply and communication signal of the equipment are completely isolated, with surge protection, electrostatic protection and other measures. It has the characteristics of long transmission distance, high speed, stable and reliable performance. It is widely used in attendance machine, IC card charging system, automatic control, access control system, parking lot, canteen meal selling system and highway charging system.
 
Features:
 
1. Industrial grade design, complete communication isolation, stable and reliable performance, transmission rate up to 115.2Kbps;
2. Built-in high-quality DC / DC isolated power module to achieve electrical isolation between ports;
3. Support multi-machine communication, each channel can connect up to 128 nodes, the longest transmission distance is 2500 meters;
4. Automatic data flow control technology, automatically identify and control the data transmission direction;
5. Multiple protection measures: plus or minus 15KV ESD protection, 600W dual-channel TVS protection 2.5KV communication isolation;
6. The power supply has a wide range of 9-36VDC, and has anti-reverse protection;
 
Parameters:
 
RS485E equipment is suitable for long-term stable operation at the recommended value; the equipment will not be damaged when working at the limit value, but it may cause performance degradation; do not exceed the limit value range at any time, otherwise it may cause equipment damage!

Item/parameter Recommended value (typical value)
Compatible with RS-232, RS-485 TIA/EIA standards
Operating Voltage DC: 9-36V
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 of shielded wire or twisted pair per interface
Communication rate 300bps-115. 2Kbps
Installation method 35mm rail installation, 4 holes on the back panel
structure size 115*90*40mm Weight: 136g
working environment   -30°C to 70°C, relative humidity>95%RH

485 wiring notes:
 
1. 485 communication line must use shielded twisted pair, preferably multiple strands for backup, the longest is no more than 2500 meters.
2. The wiring should be as far away as possible from high-voltage wires, and should not be parallel with the power cord, nor can it be bundled together.
3. The 485 bus must be a hand-in-hand bus structure, resolutely eliminating star connections and bifurcation connections.
4. If there are more than 30 controllers or the line length is greater than 500 meters, it is recommended to use 485 repeaters.
5. AC-powered equipment and chassis must be truly grounded and well grounded.
6. Connect the GND ground of all 485 devices with shielded wires.
 
The requirements for the selection of wires using RS-485 bus for communication:
 
Use 2-core shielded twisted pair copper, wire diameter 0.5 ~ 0.75mm2, Impedance 38 ~ 88 ohm / km, Rongkang 30 ~ 50 nanofarads / km, 2-core shielded twisted pair with 20 mm lay length
 
Signal common ground:
 
1. All devices on the same network segment must have a uniform signal ground to avoid common mode interference.
2. When centralized power supply, connect the DC negative poles of all power sources on the same network segment (including the self-contained power source of the communication equipment) directly to form a common signal ground
At this time, the signal ground is the DC power ground.
3. When a single household supplies power independently, connect the ground (black wire) pins of all bus devices on the same network segment together to form a common signal ground.
 
Terminal definition and wiring diagram:

1 RS-485 B RS-485-
2 G RS-485 GND
3 A  RS-485+
4 RS-485 B RS-485-
5 G RS-485 GND
6 A  RS-485+
7 RS-485 B RS-485-
8 G RS-485 GND
9 A  RS-485+
10 RS-485 B RS-485-
11 G RS-485 GND
12 A  RS-485+
1 DC9-36V DC socket 5.5*2.1
2 + Terminal terminal positive
3 – Terminal negative
4 RS-232 TXD RS-232 transmission
5 RXD RS-232 receiving
6 GND RS-232 ground
7 RS-485 B RS-485-
8 A RS-485+



Installation method:
 
35mm guide rail installation, back plate 4 hole installation

Packge includes:

1 x Industrial Grade Optical Isolation 4-channel RS485 HUB Sharer Splitter

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