User's Manual

DIB-500 R4.1 Product description
Constituents
36 Installation, Operation and Service Manual 90DIB500R41IM_FCC02 – 99.1
Figure 3.4 shows the top view of the terminal block in a simplified representation. The
following table describes the terminals in more detail that are required for connecting a
V
DC
voltage supply and top hat rail power supply unit of the redundancy package.
Figure 3.4 Terminal block
3.1.1.2 Expansion for V
AC
voltage supply (V
AC
voltage supply unit)
The V
AC
voltage supply unit is a hardware component and consists of different compo-
nents, see Table 3.6 on page 37. For variants of the DIB-500 R4.1 with more than four
carriers, one V
AC
voltage supply unit is installed for each equipment rack.
Voltage supply connector for VDC voltage supply
For a V
DC
voltage supply, the voltage supply connection is implemented via the terminal
block, refer to section 3.1.1.1 on page 35.
Table 3.5 describes the number of rectifier modules as a factor of the voltage supply.
Table 3.4 Legend: Terminal block
No. Wire colour
1 Terminal with earthing cable for potential equalisation
2 Terminal for connecting a negative terminal earthing
3 "-" terminal for the negative voltage supply cable
4 "+" terminal for the positive voltage supply cable
5 Terminal for connecting a positive terminal earthing
6 "+" terminal for the top hat rail power supply unit of the redundancy package
7 "-" terminal for the top hat rail power supply unit of the redundancy package
6
7
1 2 3 4 5
Table 3.5 Number of rectifier modules
Voltage supply Number of transceiver
modules
Number of rectifier modules
100 V
AC
- 170 V
AC
(nominal) 1 1
22
170 V
AC
- 240 V
AC
(nominal) 2 1