{"product_id":"dahua-vtns2003b-2-tweedraads-switch","title":"Dahua VTNS2003B Two-wire switch","description":"\u003ch2\u003eDahua VTNS2003B-2 \u003cspan style=\"font-size: 14px;\"\u003eTwo-wire switch \u003c\/span\u003e\n\u003c\/h2\u003e\r\n\u003cdiv\u003e\n\u003cbr\u003e\r\n\u003cp\u003eThe VTNS2003B-2 is a switch for products from the new generation of Dahua Video Intercom products. The communication of this generation of video intercom products uses the SIP protocol. This protocol ensures a good speaking-listening connection and offers options for integration with third parties. The 2-wire technology simplifies installation and offers the ability to connect multiple posts to one cable.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003ePros:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eMultiple devices on one 2-wire connection:\u003c\/strong\u003e With this generation it is possible to connect multiple products in series via the \"out\" port. The switches can also be connected to each other via 2 wires. Each switch must be separately supplied with 48VDC. \u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003e2 wires for one system: \u003c\/strong\u003eBoth the power supply for the indoor and outdoor stations and the data transmission go through the same cable. The posts can be placed in one line, making 2 wires sufficient for a working system.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eTCP-IP network protocol: \u003c\/strong\u003eDespite the 2-wire technology, the stations work just like regular network products. This means that each post must have its own unique IP address. The major advantage of this is that posts connected to this 2-wire switch can be combined with the PoE products and the 2-wire products from the previous generation. \u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eSuitable for DMSS and DSS Pro: \u003c\/strong\u003eBecause the 2-wire products are simply part of the network, they can also be used with the DMSS app or DSS Pro management software\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cstrong\u003ePoints of attention:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for all 2-wire products: \u003c\/strong\u003eThis switch is not suitable for all Dahua 2-wire intercom products. Products from older generations are not supported by this switch\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eMaximum 2 outdoor stations per switch: \u003c\/strong\u003eA maximum of 2 VTO outdoor stations can be connected per switch. If there are more outposts, they must be connected to the next switch. The switches can be linked together\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eMaximum 2 extensions per VTH internal station: \u003c\/strong\u003eA maximum of 2 additional extensions can be added to a VTH indoor unit. If there are more than one, it is recommended to connect the VTH to each other via a PoE switch. \u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eVTNS2003-B \u003c\/strong\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eFor 6 devices or less, a 48VDC power supply of 1.25A is sufficient\u003c\/li\u003e\r\n\u003cli\u003eFor 6 to 22 devices, a 48VDC power supply of 5A is recommended.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eAdvice\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eRecommended cabling:\u003c\/strong\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e4x0.5mm² with a maximum resistance of 4Ω per 100 meters. Maximum distance 50 meters \u003c\/li\u003e\r\n\u003cli\u003e2x0.5mm² with a maximum resistance of 3.9Ω or less per 100 meters. Maximum distance 50 meters \u003c\/li\u003e\r\n\u003cli\u003eUTP Cat5e 0.45mm with a maximum resistance of 12Ω per 100 meters. Maximum distance with 6 VTH is 50 meters, with 12 VTH this is 30 meters.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eLock control by external power supply: \u003c\/strong\u003eIn theory, the power supply and control of locks and doors could also be done from the switch. However, this can have a negative effect on the operation and mutual communication of the indoor and outdoor stations and is therefore not recommended. \u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003c\/div\u003e","brand":"Dahua","offers":[{"title":"VTNS2003B-2","offer_id":51626728849729,"sku":"VTNS2003B-2","price":121.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0937\/8860\/2689\/files\/dahua-dahua-vtns2003b-tweedraads-switch-39280292888809_7b541dff-49bc-49b7-a57e-b4aee2aedbaf.jpg?v=1776261849","url":"https:\/\/www.alarma-total.es\/en\/products\/dahua-vtns2003b-two-wire-switch","provider":"Alarma-Total.es","version":"1.0","type":"link"}