
DS21Q55 Quad T1/E1/J1 Transceiver
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Signal Name:
RPOSOx
Signal Description:
Receive Positive-Data Output
Signal Type:
Output
Updated on the rising edge of RCLKO with bipolar data out of the line interface. This pin is normally connected to
RPOSI.
Signal Name:
RNEGOx
Signal Description:
Receive Negative-Data Output
Signal Type:
Output
Updated on the rising edge of RCLKO with the bipolar data out of the line interface. This pin is normally
connected to RPOSI.
Signal Name:
RCLKOx
Signal Description:
Receive Clock Output
Signal Type:
Output
Buffered recovered clock from the network. This pin is normally connected to RCLKI.
Signal Name:
RPOSIx
Signal Description:
Receive Positive-Data Input
Signal Type:
Input
Sampled on the falling edge of RCLKI for data to be clocked through the receive-side framer. RPOSI and RNEGI
can be connected together for an NRZ interface. Can be internally connected to RPOSO by connecting the LIUC
pin high.
Signal Name:
RNEGIx
Signal Description:
Receive Negative-Data Input
Signal Type:
Input
Sampled on the falling edge of RCLKI for data to be clocked through the receive-side framer. RPOSI and RNEGI
can be connected together for an NRZ interface. Can be internally connected to RNEGO by connecting the LIUC
pin high.
Signal Name:
RCLKIx
Signal Description:
Receive Clock Input
Signal Type:
Input
Clock used to clock data through the receive-side framer. This pin is normally connected to RCLKO. Can be
internally connected to RCLKO by connecting the LIUC pin high.