Nortel Networks OPTera Metro 3500 - Manual (Page 200)

2-162 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Note 3: STS24c and STS48c rates are only supported on shelves equipped
with OC-48 STS interfaces in slots 3 through 10 and STX-192 circuit
packs.
Note 4: When a facility is provisioned as a TAP, the Loss of Signal LED
becomes active on the circuit pack.
Figure 2-52
Test access components
EX1396p
Test access configurations
Supported test access states include:
• monitoring test access (non-intrusive test state)
• split test access (intrusive test state-for out of service connections)
Monitoring test access
A test access session in the monitoring state, does not affect traffic and it does
not trigger a protection switch. Traffic is sent to the test unit via the TAP and
is allowed to continue on it’s original path. See
Figure 2-53 on page 2-163 .
Testing Operations
System (TOS)
Test access equipment
- test head
(Hekimian or other)
Control Link
- TCP/IP socket
Network Element
(OPTera Metro 3500)
Test Access Interface cable
(DS1, DS3, DS3VT, EC1,
OC3, OC12, or OC48)
DCN