C
HEETAH
64
S
ERIES
–
C
HAPTER
9
81-9059-0577-0
Rev. E
Proprietary Information of
PESA Switching Systems
9-7
T
ABLE
9-3
Output Board LEDs
LED
C
OLOR
S
TATUS
D
ESCRIPTION
A
CTION
R
EQUIRED
ON
Indicates that a control error
has occurred or a loss of receive
clock from frame controller has
been detected. A control error
includes a bad CRC of the
received data, incorrect number
of words in the message being
received, or corrupted data in
the message being received. In
the case of a control error, the
LED will remain illuminated
until a message with a good
CRC has been received.
Remove and re-insert the board.
If the condition continues, replace
the board.
Control Error
Red
Blinking
Indicates a missing receive
clock error.
Remove and re-insert the board.
If the condition continues, replace
the board.
ON
Indicates that the +28V, +5.0V,
+3.7V, and +4.5V power is
stable
and
within
normal
operating parameters.
None
Power Good
Green
OFF
Indicates that 28V is not stable
or the 5.0V, 3.7V, or 4.5V
power supplies are not working.
Remove and re-insert the board.
If the condition continues, replace
the board.
Port A, Port B
(Surface-
mounted on the
PCB)
Yellow
ON
Indicate whether the board is
communicating with the frame
controller via communications
port A or B.
None.
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