Product Preview DS21Q55
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PIN SYMBOL TYPE DESCRIPTION
#1.
D17 RFSYNC2 O Receive Frame Sync (before the receive elastic store), Transceiver
#2.
A2 RFSYNC3 O Receive Frame Sync (before the receive elastic store), Transceiver
#3.
V14 RFSYNC4 O Receive Frame Sync (before the receive elastic store), Transceiver
#4.
F1 RLCLK1 O Receive Link Clock, Transceiver #1.
A12 RLCLK2 O Receive Link Clock, Transceiver #2.
D3 RLCLK3 O Receive Link Clock, Transceiver #3.
K18 RLCLK4 O Receive Link Clock, Transceiver #4.
G2 RLINK1 O Receive Link Data, Transceiver #1.
A13 RLINK2 O Receive Link Data, Transceiver #2.
A3 RLINK3 O Receive Link Data, Transceiver #3.
U12 RLINK4 O Receive Link Data, Transceiver #4.
H2 RLOS/LOTC1 O Receive Loss Of Sync / Loss Of Transmit Clock, Transceiver #1.
E17 RLOS/LOTC2 O Receive Loss Of Sync / Loss Of Transmit Clock, Transceiver #2.
E1 RLOS/LOTC3 O Receive Loss Of Sync / Loss Of Transmit Clock, Transceiver #3.
V11 RLOS/LOTC4 O Receive Loss Of Sync / Loss Of Transmit Clock, Transceiver #4.
L1 RMSYNC1 O Receive Multiframe Sync, Transceiver #1.
D16 RMSYNC2 O Receive Multiframe Sync, Transceiver #2.
F2 RMSYNC3 O Receive Multiframe Sync, Transceiver #3.
W16 RMSYNC4 O Receive Multiframe Sync, Transceiver #4.
R3 RNEGI1 I Receive Negative Data for the Framer, Transceiver #1.
D13 RNEGI2 I Receive Negative Data for the Framer, Transceiver #2.
A1 RNEGI3 I Receive Negative Data for the Framer, Transceiver #3.
P17 RNEGI4 I Receive Negative Data for the Framer, Transceiver #4.
L3 RNEGO1 O Receive Negative Data from the LIU, Transceiver #1.
B15 RNEGO2 O Receive Negative Data from the LIU, Transceiver #2.
C2 RNEGO3 O Receive Negative Data from the LIU, Transceiver #3.
U17 RNEGO4 O Receive Negative Data from the LIU, Transceiver #4.
R4 RPOSI1 I Receive Positive Data for the Framer, Transceiver #1.
B14 RPOSI2 I Receive Positive Data for the Framer, Transceiver #2.
B2 RPOSI3 I Receive Positive Data for the Framer, Transceiver #3.
V15 RPOSI4 I Receive Positive Data for the Framer, Transceiver #4.
L4 RPOSO1 O Receive Positive Data from the LIU, Transceiver #1.
A16 RPOSO2 O Receive Positive Data from the LIU, Transceiver #2.
B1 RPOSO3 O Receive Positive Data from the LIU, Transceiver #3.
U15 RPOSO4 O Receive Positive Data from the LIU, Transceiver #4.
Y11 RRING1 I Receive Analog Ring Input, Transceiver #1.
Y14 RRING2 I Receive Analog Ring Input, Transceiver #2.
Y17 RRING3 I Receive Analog Ring Input, Transceiver #3.
Y20 RRING4 I Receive Analog Ring Input, Transceiver #4.
J2 RSER1 O Receive Serial Data, Transceiver #1.
D15 RSER2 O Receive Serial Data, Transceiver #2.
E2 RSER3 O Receive Serial Data, Transceiver #3.
W17 RSER4 O Receive Serial Data, Transceiver #4.
L2 RSIG1 O Receive Signaling Output, Transceiver #1.
B16 RSIG2 O Receive Signaling Output, Transceiver #2.
C1 RSIG3 O Receive Signaling Output, Transceiver #3.
Y18 RSIG4 O Receive Signaling Output, Transceiver #4.
K1 RSIGF1 O Receive Signaling Freeze Output, Transceiver #1.
C15 RSIGF2 O Receive Signaling Freeze Output, Transceiver #2.