Clear-Com LMC-64 - Manual (Page 34)

Clear-Com
Eclipse Median Instruction Manual
2 - 1 4
• AES-6. Provides an interface for third party devices and digital
panels.
Each of these interfaces has its own individual manual in the Eclipse
set of manuals. Refer to an interface’s individual manual for more
information on operating, installing, or maintaining it.
Note: Unlike interfaces installed in a separate interface frame, the
interfaces installed in the Median are powered by the same
onboard power supply that also powers the CPU card and
port cards.
POWER SUPPLY DESCRIPTION
Eclipse Median has two Euro Cassette power supply units can be
easily installed or removed as needed. 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 an outage on
one of the AC mains circuits. For this feature to work, each power
supply should be connected to a different AC mains branch.
If the temperature inside the Eclipse matrix exceeds a threshold, both
an audible alarm and a warning light switch on, allowing the system
operator to diagnose and correct power anomalies while the system
remains in operation.
Warning: Eclipse Median matrices may be fitted with HITRON
(part 740134Z) or Power-One (part 720379Z) power
supply units depending on the date of manufacture.
The different types of power supply units must not be
mixed in an Median matrix; if one of the pair of power
supplies is replaced it must be replaced with the same
type of power supply unit. If this is not possible both
power supplies must be replaced with power supply
units of the same type.
Power-One power supplies are identified by the part
number on the from of the unit; HITRON units do not
have a part number on the front of the unit.
Each cassette has two status lights located on the power supply unit in
the upper left corner. The green light stays on continuously to indicate
that the unit is receiving appropriate power. The amber (HITRON unit)
or red (Power-One unit) light goes on when a DC output or AC input
falls too low.
DIAGNOSING POWER SUPPLY PROBLEMS
Figure 2-4 illustrates the front panel alarm lights, power supply lights,
and reset button. An alarm source triggers the main alarm light and