WebEML User Manual Line Facing PDH/SDH Tributary Loopback
965
65 Line Facing PDH/SDH Tributary
Loopback
65.1 Purpose
This chapter provides procedures to perform Line Facing PDH/SDH Tributary
Loopback for the 9500 MPR.
65.2 General
Line Facing PDH/SDH Tributary Loopback mode uses the received line tributary
input signal to the PDH/SDH transponder card and sends the signal back to the
transmit line tributary output signal. See Figure 724 for a block diagram of Line
Facing PDH Tributary Loopback. See Figure 725 for a block diagram of Line Facing
SDH Tributary Loopback.
Line Facing PDH/SDH Tributary Loopback is a line external loopback.
Line Facing PDH/SDH Tributary Loopback is a drop-and-continue loopback.
Line Facing PDH/SDH Tributary Loopback can be activated on a per tributary basis
independent of the other PDH/SDH tributaries.
Line Facing PDH/SDH Tributary Loopback is supported on E1/DS1 tributaries
(P32E1DS1 card) and DS3 tributaries (P2E3DS3 card).
Release 7.0.0 3DB 19286 ACAA Issue 01
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