Service manual

1
Field-Replaceable Units
1-5
General Information
Figure 1-3 Director FRUs (Rear Access)
Cable
Management
Assembly
The cable management assembly at the bottom front of the director
provides routing for Ethernet cables attached to CTP2 cards and
fiber-optic cables attached to director ports. The assembly rotates up
to provide front access to the redundant power supplies.
Front Bezel
The bezel at the top front of the director includes an amber system
error light-emitting diode (LED) and a green power LED. 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.
CTP2 Card
The director is delivered with two CTP2 cards. The active CTP2 card
initializesand configures the director after power on and contains the
microprocessor and associated logic that coordinate director
operation.