User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 203
DIB-500 R4.1 Component replacement
Replacing components of the VAC and alarm system expansion – optional
7. Loosen the nut of the DC voltage supply cables using a size 4 wrench, refer to Fig-
ure 11.23.
Figure 11.23 Mounting frame – DC voltage supply connectors (side view)
8. Remove the DC voltage supply cables.
9. Pull the component out of the subrack cautiously.
10. Remove the retaining brackets from the component by loosening the fastening
screws using a size 1 cross-head screwdriver. The retaining brackets will be
required when installing the component again.
Figure 11.24 Mounting frame – retaining brackets (side view)
You have successfully removed the mounting frame.
Preparing the mounting frame
Before installing the mounting frame, the frame must be prepared appropriately. For this
purpose, part of the replacement cover of the DC voltage supply connectors must be
broken off along the predetermined breaking pattern.
Proceed as follows to prepare the mounting frame:
Preparation:
The upper cover of the mounting frame must have been removed, refer to section
5.12.1 on page 124.
The tools and aids must be available, refer to section 11.2.6 on page 174.
Carry out the following steps:
1. Loosen the mounting screws of the DC voltage supply connector cover using a
size 1 cross-head screwdriver..
Figure 11.25 Mounting frame – cover of the DC voltage supply connectors (side view)