Cheetah 64NE, Руководство пользователя

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C
HEETAH
64 S
ERIES
– C
HAPTER
8
81-9059-0577-0 Rev. E
Proprietary Information of PESA Switching Systems 8-12
Table 8-5 (cont.)
LED C
OLOR
S
TATUS
D
ESCRIPTION
ON
Indicates that a control error has occurred, or that 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. The LED will remain on until a message with a good CRC
has been received.
Blinking Indicates a missing receive clock error.
Ctrl Err Red
OFF
No alert conditions are present.
In Use Yellow ON Indicates that a crosspoint on the matrix card is activated.
Port A/B
Yellow
(On the
PCB
only)
ON
These surface-mount LEDs indicate whether the card is
communicating with the frame controller via communications port A
or B. They are not user-accessible.