{"id":41933,"date":"2015-03-12T16:55:01","date_gmt":"2015-03-12T16:55:01","guid":{"rendered":"https:\/\/www.erail.gr2\/?post_type=product&#038;p=41933"},"modified":"2026-02-26T13:41:32","modified_gmt":"2026-02-26T11:41:32","slug":"roco-10820-z21-central-unit","status":"publish","type":"product","link":"https:\/\/www.erail.gr\/en\/shop\/roco-10820-z21-central-unit\/","title":{"rendered":"Roco 10820 Z21 Central Unit"},"content":{"rendered":"<p>The digital heart of the system.<\/p>\n<p><span style=\"font-size: 12.1599998474121px; line-height: 1.3em;\">Z21 is a complete plug and play system and consists of:<\/span><\/p>\n<ul>\n<li>the coordinating operation control (available in two versions at Fleischmann and Roco)<\/li>\n<li>the Z21 mobile application for the operation of all set components (available as a free download)<\/li>\n<li>the continuously expanding number of apps for driver cabs (available as a download)<\/li>\n<\/ul>\n<p>Z21 is designed for<\/p>\n<ul>\n<li>Android and Apple systems (Tablet-PC, Smartphone)<\/li>\n<li>digital\u00a0DC- and AC locomotives<\/li>\n<\/ul>\n<h2>Mode of operation:<\/h2>\n<h2>The Z21 control center\u00a0connects your model train set and your digital locomotives with your smartphone or tablet PC and the Z21 app that you have installed via the wireless network WLAN. This way you can operate your layout simply and comfortable from every Android or Apple smartphone or tablet PC with the Z21 app. You can choose from a basic operation mode or the true to the original and detailed driver cabs.<\/h2>\n<p><span style=\"font-size: 12.1599998474121px; line-height: 1.3em;\">For information and specification please visit the Z21 page:\u00a0<\/span><a href=\"http:\/\/www.z21.eu\/en\/\">http:\/\/www.z21.eu\/en\/<\/a><\/p>\n<p>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Digital central Unit Z21<\/p>\n","protected":false},"featured_media":41934,"template":"","meta":{"_acf_changed":false},"product_brand":[966],"product_cat":[797],"product_tag":[],"class_list":["post-41933","product","type-product","status-publish","has-post-thumbnail","product_brand-roco","product_cat-accessories","first","outofstock","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Roco 10820 Z21 Central Unit - eRail - Railway modelling<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.erail.gr\/en\/shop\/roco-10820-z21-central-unit\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Roco 10820 Z21 Central Unit - eRail - Railway modelling\" \/>\n<meta property=\"og:description\" content=\"Digital central Unit Z21\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.erail.gr\/en\/shop\/roco-10820-z21-central-unit\/\" \/>\n<meta property=\"og:site_name\" content=\"eRail - Railway modelling\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/erail.gr\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-26T11:41:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.erail.gr\/wp-content\/uploads\/2015\/03\/p-41933-10820.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"572\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.erail.gr\\\/en\\\/shop\\\/roco-10820-z21-central-unit\\\/\",\"url\":\"https:\\\/\\\/www.erail.gr\\\/en\\\/shop\\\/roco-10820-z21-central-unit\\\/\",\"name\":\"Roco 10820 Z21 Central Unit - 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