Chapter 2
Installing the Backup PSU
100-240-01
9
Insta
lling the
Backup
PSU
Rack-mounting the Backup PSU
Note:
The Backup PSU chassis weighs 7.1 kg (15.62 Ibs). Another person should be present to
support the unit whilst you secure the Backup PSU with the installation screws.
The Backup PSU occupies 2U, which is 88 mm (3.5 in.), of vertical space in a standard
480 mm (19 in.) rack. The Backup PSU has built-in mounting brackets.
Note:
If you are mounting the Backup PSU in a rack, always mount the product before connecting
power cables to it.
Before you mount the Collage 740 in a rack, make sure that:
•
There are no power cables connected to the Backup PSU.
•
There is 2U, which is 88 mm (3.5 in.), of vertical space above or below the Collage 740 switch
that you plan to connect to the Backup PSU. If you plan to connect the Backup PSU to two
Collage 740 switches, mount the Backup PSU between the switches in the rack.
•
The Backup PSU will be situated close enough to the Collage 740 switch such that the
0.5 m (19.69 in.) connection cable will reach both units.
•
There is a clearance of 40 mm (1.575 in.) around the sides of the Collage 740 to enable the
internal fans to disperse heat.
install.fm4 Page 9 Tuesday, August 13, 1996 2:05 PM
