Siemens Industry Online Support
Siemens AG
Entry type: Product note Entry ID: 50082865, Entry date: 05/12/2011

Announcement Phase out: AS-i Addressing Unit V2.1

  • Entry
  • Associated product(s)

New AS-i addressing unit V3.0 shortly to replace the previous addressing unit V2.1

Date for the Phase-out Announcement : 2011-05-11


The addressing unit V 2.1 (order number 3RK1904-2AB01) will be discontinued as per  07/2011, following delivery start of the innovated AS-Interface addressing unit V 3.0 (order number 3RK1904-2AB02).

The new addressing unit V 3.0 is downward-compatible and offers considerably improved functionality at an only slightly increased list price.

Reference to the new device, order number 3RK1904-2AB02, will be made for all orders placed after the discontinuation date.

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
Rate entry
no rating
Requests and feedback
What do you want to do?
Note: The feedback always relates to the current entry / product. Your message will be forwarded to our technical editors working in the Online Support. In a few days, you will receive a response if your feedback requires one. If we have no further questions, you will not hear from us.