Clear-Com Eclipse Median, Instruction Manual

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Vitec Group Communications
Eclipse Median Instruction Manual
6 - 2
FAIL-SAFE MODES
High reliability is one of the main objectives of the Eclipse Median
system design. The following features of the system minimize the
effects of a component failure.
DUAL, INDEPENDENT POWER SUPPLIES
The Eclipse Median includes two Euro Cassette power supply units.
One power supply unit can power an entire matrix; the second unit
provides a backup in case of an equipment failure.
In addition, the two supplies have separate IEC connectors to AC
mains power, and are designed for completely automatic and
transparent changeover between supplies in the event of a power
failure on one of the AC branches.
POWER SUPPLY ALARM OUTPUT
Each power supply contains a sensor that is connected to both an
audible alarm and a warning light on the matrix. When a power
supply’s DC output or AC input drops too low, the sensor activates the
matrix’s audible alarm and warning light, giving you the necessary
forewarning to diagnose and correct any power anomalies while the
system remains operational.
The sensor can also activate an external alarm connected to the
matrix, such as a light or bell. An alarm can be issued to a remote
location to alert operators that part of a power supply has failed.
The failure of a single supply will issue an alarm, but the Eclipse
Median system will continue to operate normally, powered by the
second supply.
See “Diagnosing Power Supply Problems” in Chapter 2 for more
information on the power supply alarms.
“HOT PATCHABILITY”
All CPU cards, port cards, and all Euro Cassette power supplies are
“hot patchable”– that is, they can be plugged in or removed from the
matrix while the power is on, and they will be neither damaged, nor will
they cause damage to the system. In addition, the system smoothly
incorporates a newly added card.
ONBOARD PROCESSORS
If one port card malfunctions, the malfunction will normally affect only
the panels connected to that port card. The malfunction should not
affect any other cards or panels in the system. In all cases, removing a
faulty card affects only the devices connected to that card.