ASTRON UniBoard2 Manual - Página 10
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Imprimir página9.2 Clock Jumpers
9.2.1
System Clock
With J12 1-2 the clock can be selected. By placing the jumper onboard XO is used. By removing the jumper
the input from the backplane is used. In Figure 4 the location of the jumpers are shown.
9.2.2
Transceiver Clocks
To enable the transceiver clocks the jumpers J13 3-4 (SER_CLK_A) and J12 3-4 (SER_CLK_B) should be
placed, see Figure 5 Location of Transceiver clock enable jumpers
UniBoard
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SYS_CLK
Figure 4 Location of clock selection jumpers
SER_CLK_B
Figure 5 Location of Transceiver clock enable jumpers
2
Manual
SER_CLK_A
Doc.nr.:
Rev.:0.1
DESP
Date:11/05/2015
Class.:
ASTRON-IS-036 1.0