Overview
27
Director 2/140 Installation Guide
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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
.
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:
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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.
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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.
shows the faceplate of an UPM.
