Mounting plate with two holes 19.30 x 14.80 mm, for installation in System 55 device inserts with MT45V. For accommodating two connection sockets of the data technology types Brand-Rex: shielded module EKU: E-Stone module Dätwyler: KS-T, MS-K and KU-T module R&M: Snap-In and Keystone module Rutenbeck: UM and UMflex module SETEC: MKJ, UKJ and XKJ module Siemon TERA Telegärtner: AMJ and UMJ module.