Service manual

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McDATA Sphereon 4400 Fabric Switch Installation and Service Manual
General Information
• At 500 meters (1.0625 Gbps) through 50-micron multimode
fiber-optic cable.
• At 300 meters (2.1250 Gbps) through 50-micron multimode
fiber-optic cable.
• At 150 meters (4.2500 Gbps) through 50-micron multimode
fiber-optic cable.
• At 300 meters (1.0625 Gbps) through 62.5-micron multimode
fiber-optic cable.
• At 150 meters (2.1250 Gbps) through 62.5-micron multimode
fiber-optic cable.
• At 70 meters (4.2500 Gbps) through 62.5-micron multimode
fiber-optic cable.
Tri-rate longwave laser (1.0625, 2.1250, or 4.2500 Gbps) are also
available. Longwave laser transceivers provide connectivity at 4
kilometers and 10 kilometers through singlemode fiber-optic cable.
(Additional distances will be available in the future. 2Gb LW optics
are currently available for 10, 20, 35 and 80 kilometers.)
The switch also provides a predictive optics monitoring (POM)
feature that monitors operation of SFP optical transceivers. Digital
diagnostics-enabled optical transceivers report temperature, voltage
current, transceiver power, and receiver power to product firmware.
Optical transceivers also provide vendor-specific threshold values for
these parameters.
Power Supply
Assembly
The switch is delivered with one external power supply assembly.
The power supply steps down and rectifies facility input power to
provide 12 volts direct current (VDC) to the control processor (CTP)
card. The power supply also provides input filtering, overvoltage
protection, and overcurrent protection. The power supply is input
rated at 100 to 240 volts alternating current (VAC).
A second power supply can be installed as an option. When a second
power supply is detected, the switch automatically enables high
availability (HA) mode. With HA mode enabled, either power supply
can be replaced while the switch is operational. Each power supply
has a separate connection to the CTP card to allow for independent
AC power sources.
Three internal cooling fans provide airflow for the CTP card, as well
as redundancy for continued operation if a single fan fails.