Nortel Networks 1000BASE-LX, 1000BASE-SX Back panel, Cascade Up and Down connectors, Cooling fans

Models: 1000ASE-XD 1000BASE-ZX 1000BASE-SX 1000BASE-LX

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Back panel

30 Chapter 1 BayStack 420 Switch

Back panel

The switch back panel is shown in Figure 4. Table 3 describes the components on the back panel.

Figure 4 BayStack 420 Switch back panel

1

2

100-240 V-

50-60Hz 2A

Cascade

Out In

9992EA

Table 3 Components on the BayStack 420 Switch back panel

Item

Description

1AC power receptacle

2Cascade Up and Down Connectors

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 “Stack configurations” on page 51.)

Cooling fans

Two cooling fans are located on one side of the BayStack 420 Switch to provide cooling for the internal components. (See Figure 1 on page 25.) 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.

209418-A

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Nortel Networks 1000BASE-LX, 1000BASE-SX, 1000ASE-XD, 1000BASE-ZX Back panel, Cascade Up and Down connectors, Cooling fans