Nortel Networks 1000BASE-ZX Manual Do Utilizador
30
Chapter 1 BayStack 420 Switch
209418-A
Back panel
describes the components on
the back panel.
Figure 4 BayStack 420 Switch
back panel
Cascade Up and Down connectors
The Cascade Up and Down connectors allow the switch to be connected to the
upstream unit’s Cascade Up connector, or to the downstream unit’s Cascade
Down connector (see
upstream unit’s Cascade Up connector, or to the downstream unit’s Cascade
Down connector (see
.)
Cooling fans
Two cooling fans are located on one side of the BayStack 420 Switch to provide
cooling for the internal components. (See
cooling for the internal components. (See
.) When you install
the switch, be sure to allow enough space on both sides of the switch for adequate
air flow. See Installing the BayStack 420 10/100/1000 Switch for detailed
information.
air flow. See Installing the BayStack 420 10/100/1000 Switch for detailed
information.
Table 3 Components on the BayStack 420 Switch
back panel
Item
Description
1
AC power receptacle
2
Cascade Up and Down Connectors
9992EA
100-240 V-
50-60Hz 2A
50-60Hz 2A
1
2
Cascade
Out
In