SONET/SDH OC-12 TO OC-48 MUX/DEMUX
S3045
Figure 8. Functional Operation of SQUELCH Mode
SDLVPECL
Note: POCLK A,B,C,D is now
derived from 311TCLKP/N
(from the transmitter)
POCLK A,B,C,D
SDLVTTL = LOW
SQUELCHB = LOW
Note: A shortening or lengthening of
POCLK A,B,C,D of up to 3.2 ns.
(Assuming 311CLKIN is within
its specification)
Figure 9. Functional Operation of Non-SQUELCH Mode
SDLVPECL
POCLK A,B,C,D
SDLVTTL = LOW
SQUELCHB = HIGH
Note: POCLK A,B,C,D continues
to be derived from 311CLKINP/N
(from the receiver)
11
December 13, 1999 / Revision E