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TPOS
TNEG
TCLK
RPOS
RNEG
RCLK
MCLK
TAOS
TPOS
TNEG
TCLK
RPOS
RNEG
RCLK
TPOS
TNEG
TCLK
RPOS
RNEG
RCLK
DS485PP4
Transmit
Control &
Pulse Shaper
Clock Recovery &
Data Recovery
Figure 10. Digital Loopback Block Diagram
CS61884
TTIP
TRING
RTIP
RRING
Transmit
Control &
Pulse Shaper
Clock Recovery &
Data Recovery
Figure 11. Digital Loopback with TAOS
Transmit
Control &
Pulse Shaper
Clock Recovery &
Data Recovery
Figure 12. Remote Loopback Block Diagram
TTIP
TRING
(All One's)
RTIP
RRING
TTIP
TRING
RTIP
RRING
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