Overview
26
Director 2/140 Installation Guide
cards provide non-volatile memory for storing firmware director configuration
information, persistent operating parameters, and memory dump files. Director
firmware is upgraded concurrently (without disrupting operation).
Each card faceplate contains a green light emitting diode (LED) that turns O
N
if
the card is operational and active, and an amber LED that turns O
N
if the card
fails. The LEDs are O
FF
on the backup CTP. The amber LED F
LASHES
if
beaconing is enabled.
Power/System LED Assembly
The bezel at the top front of the director includes an amber system error
light-emitting diode (LED) and a green power LED. These LEDs are actuated and
controlled by a Power/System LED Assembly which is accessed from the rear of
the director.
The power LED illuminates when the director is powered on and operational. If
the LED extinguishes, a facility power source, alternating current (AC) power
cord, or director power distribution failure is indicated.
The system error LED illuminates when the director detects an event requiring
immediate operator attention, such as a FRU failure. The LED remains
illuminated as long as an event is active. The LED extinguishes when the Clear
System Error Light function is selected from the Element Manager application.
The LED blinks if unit beaconing is enabled. An illuminated system error LED
(indicating a failure) takes precedence over unit beaconing.
Power Supplies
The Director 2/140 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 180 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.
