Power Supplies
Chassis and Power Supplies
page 2-12
OmniSwitch 7700/7800 Hardware Users Guide
April 2005
Power Supplies
The OmniSwitch 7800 supports a total of four power supplies; the OmniSwitch 7700 supports a total of
three power supplies (refer to
for important redundancy information). The power supplies are
installed in the power supply bays located at the right side of the chassis. See
for a slot diagram
showing the power supply bays.
Note.
Power supplies are interchangeable between OS7700 and OS7800 chassis types.
Power Supply Front Panel
OVER
TEMP
DC OK
AC OK
50/60Hz, 8.0/7.0/3.5 A
100/115/250V
AC OK (Top LED).
Displays solid green when
the power supply’s AC cur-
rent status is OK and the
power supply is operating.
Off when the power supply
is not operating.
DC OK (Middle LED).
Displays solid green when
the power supply’s DC cur-
rent status is OK and the
power supply is operating.
Off when the power supply
is not operating.
OVER TEMP (Bottom
LED).
Off when the power
supply is operating under
supported temperature con-
ditions.
Displays solid amber when a
temperature error is detected
in the power supply hous-
ing. If a temperature error is
detected, check for an air-
flow obstruction at the air
intake vent or at the back of
the chassis. If no airflow
obstruction exists, remove or
replace the power supply
immediately. Refer to the
sections below for important
information on replacing
power supplies and power
supply redundancy.
Power Switch.
indicates
on
position;
indicates
off
position.
Power
Supply
LEDs
Power Connector Socket.
Type IEC-320-C13. Supports
one 10 amp power cord.
It is recommended that you use
Alcatel-provided power cords.
Air Intake Vent.
The air
intake vent provides cooling
and temperature control for the
power supply. Maintain a front
clearance of at least six inches
to ensure proper airflow.
For additional airflow informa-
tion, refer to
Power Cord Retainer.
Alcatel provides a white nylon
cable retainer with each power
supply. This retainer is used to
secure the power cord so that it
cannot be accidentally pulled
from the socket.
For information on using this
retainer, refer to
.
