QuStream PESA CHEETAH 128 Series, Manual

Page: 77 / 105

C
HEETAH
128 S
ERIES
– C
HAPTER
9
81-9059-0587-0 Rev. B
Proprietary Information of QuStream Corp
.
9-6
T
ABLE
9-2 Matrix 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.
In Use
Yellow
ON
Indicates that a crosspoint on
the matrix card is activated.
None
ON
Indicates that the +28Vpower is
stable and within normal
operating parameters.
None
+28V
Green
OFF
Indicates that 28V is not stable
or the 3.3V or 2.5V power
supplies are not working. Remove and re-insert the board.
If the condition continues, replace
the board.
+3.3V
Green
ON
Indicates that the +3.3V power
is stable and within normal
operating parameters.
None
+2.5V
Green
ON
Indicates that the +2.5V power
is stable and within normal
operating parameters.
None
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