Nortel BayStack 380, Using Manual, Page: 32 / 218

32 Chapter 1 BayStack 380 Switch
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Back panel
The switch back panel is shown in Figure 4 . Table 3 describes the components on
the back panel.
Figure 4 BayStack 380 Switch back panel
Redundant power supply unit (RPSU) and uninterruptible
power supply (UPS)
The redundant power supply connector allows you to connect a backup power
supply unit to the BayStack 380 Switch. Nortel Networks provides an optional
redundant power supply unit (RPSU) for this purpose. The BayStack 10 Power
Supply Unit (Order number AA0005005) is a hot-swappable power supply unit
that provides uninterrupted operation to as many as four BayStack 380 Switches
in the event that any of the switch power supplies fail.
The BayStack 10 Power Supply Unit has a powerful, modular redundant and
uninterruptible power supply (UPS) functionality in a single chassis. It provides
scalable power redundancy and protection to your networking equipment. The
modules fit into the right-hand side of the rear of the chassis. The UPS and
associated battery pack module fit into the front of the chassis.
Table 3 Components on the BayStack 380 Switch back panel
Item Description
1 DC-DC module for the Redundant power supply unit
(RPSU)
2 AC power receptacle
100-240 V-
50-60Hz 2A
2 1
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