User's Manual

Table Of Contents
DIB-500 R4.1 Component replacement
Replacing components of the VAC and alarm system expansion – optional
204 Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1
Risk of injury
The equipment rack features sharp edges on the inside. Risk of injury if you do not wear
protective gloves.
Always wear protective gloves for the following process steps.
2. Brake off the rear part of the cover along the predetermined breaking pattern. Use
combination pliers for this purpose.
Figure 11.26 Cover of the DC voltage supply connectors - predetermined breaking pattern (rear
view)
3. Deburr the edges of the predetermined breaking pattern. Use a file for this pur-
pose.
You have successfully prepared the mounting frame.
Installing the mounting frame
When installing the mounting frame, it must be reconnected to the grounding cable and
the DC voltage supply cables. With V
AC
-voltage supply, the removed rectifier modules
must be installed again.
Proceed as follows to install the mounting frame:
Preparation:
The network element must have been put out of operation temporarily, refer to sec-
tion 8.1 on page 163.
The preparatory tasks must have been performed, refer to 11.8.2.1 on page 197.
The tools and aids must be available, refer to section 11.2.6 on page 174.
The mounting frame must have been prepared appropriately, refer to section on
page 203.
You need the mounting screws removed with the component.
You need the retaining brackets removed with the component.
You need the cover of the DC voltage supply connectors you dismounted when
removing the component.
Carry out the following steps:
1. Install the removed retaining brackets again, refer to Figure 11.24.
2. Route the AC voltage supply cable/s appropriately through the equipment rack so
that it does not/they do not get in the way when installing the mounting frame later
on.