HP storageworks 2/32, Installation Manual

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Introduction
26 Edge Switch 2/32 Installation Guide
Rear View
Figure 2 shows the rear of the Edge Switch 2/32. The FRUs on the rear panel
include two power supplies and four individual cooling fan FRUs. Also shown on
the rear panel is an RS-232 maintenance port (not labeled).
Figure 2: Edge Switch 2/32 (rear view)
SFP Transceivers
A single-mode or multimode fiber-optic cable attaches to a port through a
pluggable small form factor (SFP) transceiver. The SFP provides a duplex LC
interface, and can be detached from the switch port for easy replacement. Two
fiber-optic transceiver types are available:
■ Shortwave laser —Shortwave laser SFPs provide short-distance connections
(2 to 500 meters) through 50-micron or 62.5-micron multimode fiber.
■ Longwave laser —Longwave laser SFPs provide long-distance connections
(up to 10 kilometers) through 9-micron single-mode fiber.
■ Extended longwave laser —Extended longwave laser SFPs provide
long-distance connections (up to 35 kilometers) through 9-micron
single-mode fiber.
Cooling Fans
Four fans (each a separate FRU) provide cooling for the switch power supplies
and the control processor (CTP) card, as well as redundancy for continued
operation if a single fan fails.
Each fan FRU can be replaced while the switch is operating.
1
Cooling fan (4)
2
Power supply (2)
3
Power switches on power supplies (2)
1 2 3 2 3