director 2/64 service manual

director 2/64 service manual 1–19
General Information
Figure 1–7: UPM card LEDs and connectors
The director is delivered with eight UPM cards installed (32 ports), but provides
chassis slots for up to 16 UPM cards (64 ports total). A UPM card is a concurrent FRU
and can be added or replaced while the director is powered on and operating.
Depending on device connections, G_Ports behave 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 or edge switch to form an interswitch
link (ISL), the port functions as an expansion port (E_Port). A multiswitch fabric
is formed through multiple directors, edge switches, and ISLs.
Singlemode or multimode fiber-optic cables attach to UPM cards through small form
factor pluggable (SFP) optic transceivers. The fiber-optic transceivers provide duplex
LC connectors, and can be detached from UPM cards (through a 10-pin interface) for
easy replacement. Three fiber-optic transceiver types are available:
1 An amber LED (at the top of the card) that
illuminates if any port fails or blinks if FRU
beaconing is enabled.
2 A bank of amber and green LEDs above the ports.
One amber LED and one green LED are associated
with each port and indicate port status as follows:
• The green LED illuminates (or blinks if there is
active traffic) and the amber LED extinguishes to
indicate normal port operation.
• The amber LED illuminates and the green LED
extinguishes to indicate a port failure.
• Both LEDs extinguish to indicate a port is
operational but not communicating with an
N_Port (no cable attached, loss of light, port
blocked, or link recovery in process).
• The amber LED flashes and the green LED
either remains on, extinguishes, or flashes to
indicate a port is beaconing or running online
diagnostics.
3 Four duplex LC connectors for attaching fiber-optic
cables.
UPM
SHR-2274
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