User's Manual

Table Of Contents
The following table describes the recommended number of PSMs depending on the
voltage supply and the number of installed CHUs per equipment or compact rack.
Recommended number of PSMs
Voltage supply Number of CHUs Number of PSMs
90 V
AC
- 170 V
AC
(nominal) 1 to 2 2
3 to 4 4
170 V
AC
- 250 V
AC
(nominal) 1 to 2 1
3 to 4 2
The following figure shows the front view of the PSU. The following table describes it in
detail.
Figure 12: PSU (front view)
Legend: PSU (front view)
No. Component Description
1 Mounting frame The mounting frame is used for accommodating the Power
Supply Modules (PSM)
2 Power Supply
Module (PSM)
Number depending on the V
AC
voltage at the location and
the number of installed CHUs, refer to
Ä
Table “Recom-
mended number of PSMs” on page 34
The following figure shows the front view of a PSM. The following table describes it in
detail.
Figure 13: PSM (front view)
Product description
Components> VAC voltage supply
DIB-R5 advanced
34 Operation Manual 90DIBR5advancedOM02 - 1.0