Proface LT4300M - 5.7 Modular HMI + Control" - Manual (Page 60)

LT Installation
60
Display Module/Rear Module Separation Cable
NOTE:
Use this display module/rear module separation cable when the rear module is installed on the rail:
 The outer diameter of the cable is 8 mm (0.31 in.).
 There are 2 types of cable: 3 m (9.84 ft) and 5 m (16.4 ft).
 To assemble this product, you need 20 mm (0.78 in.) more space to bend the cable in the end
of the rubber.