director 2/64 installation guide

director 2/64 installation guide 1–9
Overview
Power Supplies
The Director 2/64 uses redundant, load-sharing power supplies which step down and
rectify facility input power to provide 48-VDC power to director FRUs. The power
supplies also provide over-voltage and over-current protection. Either power supply
can be replaced while the switch is powered on and operational. Each power supply
has a separate backplane connection to allow for different AC power sources.
The power supplies are input rated at 85 to 264 VAC. The faceplate of each power
supply provides the following status LEDs:
• A green PWR OK LED turns O
N if the power supply is operational and receiving
AC power.
• An amber FAULT LED turns O
N if the power supply fails.
• An amber TEMP LED turns O
N if the power supply shuts down due to an over
temperature condition.
• An amber I LIM LED turns O
N if the power supply is overloaded and operating at
the current limit (15.6 A).
Power supply requirements are listed in Appendix B.
UPM Card
Each Universal Port Module (UPM) card provides four full-duplex generic ports
(G_Ports) that transmit or receive data at 1.063 or 2.125 gigabits per second (Gbps).
G_Port functionality depends on the type of cable attachment. UPM cards use
Non-Open Fiber Control (NOFC) Class 1 laser transceivers that comply with Section
21 of the Code of Federal Regulations (CFR), Subpart J as of the date of manufacture.
Depending on device connections, G_Ports work as follows.
• If the G_Port is attached to a Fibre Channel device, the port functions as a fabric
port (F_Port). An F_Port is the interface on a director that connects to a device
N_Port.
• If the G_Port is attached to another director to form an Interswitch Link (ISL), the
port functions as an expansion port (E_Port). A multi-switch fabric is formed
through multiple directors and ISLs.
Figure 1–2 shows the faceplate of an UPM.