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CLASS IV METHOD STATEMENTS
EN50131 -1 Alarm systems - Intrusion systems - Part 1 : General requirements
8.3.1 - Table 1, (EN50131-3, 8.2.1 Table1)
EN50131 -1 Alarm systems - Intrusion systems Part 1 : General requirements
EN50131 -1 Paragraph 8.3.1 Table 1 Class IV Page 10
Levels of Access
Unless authorised by level 2, access at levels 3 and 4 shall be prevented. Access levels 2,3 &4 can be
obtained remotely as long as the required authorisation is granted. Therefore, access by a manufacturer
(level 4) or engineer (level 3) is not allowed until approved by a level 2 user.
Europlex Conformity
EN50131-1, 8.3.1 - Table 1 Indicates that only level 4 users are permitted to change/replace the basic programme.
Europlex systems currently do not have a manufacturer’s code and do not have the facility to download software
upgrades remotely. All software upgrades must be carried out by engineers that have been approved by Euro-
plex.Upgrades have to be performed on site and require an EPROM change on the main 3GS controller (located
within the system enclosure).Therefore,as level 2 authorisation is required to give access for level 3 and level 4 users,
Europlex consider that the conditions of this requirenment are met.
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