User's Manual

Table Of Contents
DIB-500 R4.1 Setup and commissioning
Connecting equipment racks (as of 5 carriers)
102 Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1
5.5.1.3 Inserting the LRU
The LRU must be connected to the top hat rail. First, the power supply cable to the top
hat rail power supply unit must be connected.
Figure 5.10 shows the voltage supply connection of the LRU. The following table
describes it in detail.
Figure 5.10 Voltage supply connection of the LRU
Figure 5.11 shows the position of the LRU on the top hat rail .
Figure 5.11 LRU on the top hat rail
Inserting the LRU
Preparation:
The voltage source on site must be de-energised.
The toggle switches must be set to the "Off" position ("downward" switch position).
The top cover of the equipment rack must have been removed.
The power supply cables must have been connected to the top hat rail power sup-
ply unit.
Table 5.10 Legend: Voltage supply connection of the LRU
No. Designation Wire colour Connection between
1 PWR1 + brown LRU and top hat rail power supply unit
2 PWR2 - white
1
2