ACS411CS datasheet(9/43 Pages) SEMTECH

9 / 43 page

ACS411CS PRE-RELEASE Issue 6.0 July 1999.

Remote loop-back initiated by far end modem CM(3:1)=110

Remote loop-back CM(3:1)=100

ACS411CS

twin fiber link

Near-end modem

Far–end modem Loop control

Far-end modem looping back data

TPOS, TNEG, TCLK

RPOS, RNEG, RCLK

ACS411CS

CM(3:1) = 110

ACS411CS

twin fiber link

Near-end modem Loop control

Far-end modem looping back data

TPOS, TNEG, TCLK

RPOS, RNEG, RCLK

ACS411CS

CM(3:1) = 100

Figure 2: Remote loopback control configurations.

twin fiber link

Near-end modem Loop control

Near end data looped back

Far-end modem

TPOS, TNEG, TCLK

RPOS, RNEG, RCLK

ACS411CS

CM(3:1) = 101

ACS411CS

local loop-back CM(3:1)=101

local loop-back initiated by far end modem CM(3:1)=111

twin fiber link

Near-end modem

Remote loop control* of far end

Far-end modem data loop back

RPOS, RNEG, RCLK

TPOS, TNEG, TCLK

ACS411CS

CM(3:1) = 111

ACS411CS

*Only if near-end in Remore control mode

ENRSB =0

Figure 1: Local loopback control configurations.

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