Service manual

1
Field-Replaceable Units
1-7
General Information
Each card faceplate contains a green LED that illuminates if the card
is operational and active, and an amber LED that illuminates if the
card fails. BothLEDs are extinguished on an operational backup card.
The amber LED blinks if FRU beaconing is enabled.
UPM Card
Each UPM card (Figure 1-4) provides four full-duplex generic ports
(G_Ports)thattransmitorreceivedataat1or2gigabitspersecond
(Gbps). G_Port functionality depends on the type of cable
attachment. UPM cards use non-open fiber control (OFC) Class 1
laser transceivers that comply with Section 21 of the Code of Federal
Regulations(CFR),Subpart(J)asofthedateofmanufacture.
The card faceplate contains:
• Four duplex LC connectors for attaching fiber-optic cables.
• AnamberLED(atthetopofthecard)thatilluminatesifanyport
fails or blinks if FRU beaconing is enabled.
• 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 LEDilluminates and thegreenLED 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.