PESA Cheetah 1024x256, Руководство пользователя

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C
HEETAH
S
ERIES
S
WITCHERS
– C
HAPTER
11
81-9059-0570-0 Rev. C
Proprietary Information of PESA S
WITCHING
S
YSTEMS
, I
NC
. 149
11.3.2 Output Combiner Card LED Indicators
Two LED indicators are located on the Output Combiner card. These LEDs are described in Table
30.
TABLE 30: Output Combiner Card Led Indicators
LED C
OLOR
S
TATUS
D
ESCRIPTION
ON
Indicates that a control error has occurred or a loss of receive
clock from the 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. If a control error occurs, the LED will
remain on until a message with a good CRC has been received
COM
Error
Red
Blinking
Indicates a missing receive clock error.
ON
Indicates that the +28V, +5.0V, +3.7V, and +4.5V power is stable
and within normal operating parameters.
PWR
Good
Green
OFF
Indicates that +28V is not stable or the +5.0V, +3.7V, or +4.5V
power supplies are not working.
11.4 I
NSTALLING
I
NPUT
/O
UTPUT
B
UFFER
C
ARDS
Install the input/output buffer cards as follows (see Figure 65):
FIGURE 65: Input/Output Signal Connectors (rear view)
1. Align the first input/output buffer card with the card guides in the chassis.
2. Carefully insert the input/output buffer card into the chassis until the screw makes contact with
the backplane. This will align the card with its’ corresponding backplane contact block.
3. Secure the screw using a hex socket or a flathead screwdriver. As the screw is been tightened, the
card will be automatically seated into the contact block on the backplane.
4. Repeat the above steps for each additional input/output buffer card.
Screws