Nortel Networks OPTera Metro 3500 - Manual (Page 201)

Operation, administration, and maintenance (OAM) features 2-163
Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Figure 2-53
Test access-monitor state
EX1397t
The monitoring configurations supported include:
• Single Facility Access Digroup, Monitor Equipment side (Single FAD,
MONE) see
Figure 2-54
• Single Facility Access Digroup, Monitor Facility side (Single FAD,
MONF) see
Figure 2-55
• Dual Facility Access Digroup, Monitor Equipment and Facility sides
(Dual FAD, MONEF) see
Figure 2-56
Note: In Figure 2-54 to Figure 2-57 “equipment side” and “facility side”
shows the direction(s) of the connection under test.
Single FAD, MONE and Single FAD MONF
In a single FAD environment, only one direction of the signal can be monitored
at a time.
In the case of Single FAD, MONE, the monitored connection is from the
equipment side input to the facility side output, see A transmission path as
shown in
Figure 2-54 .
In the case of Single FAD, MONF, the monitored connection is from the
facility side input to the equipment side output, see B transmission path as
shown in
Figure 2-55 .
Input Output
Test
Unit
TAP Out