MINI-LINKEandEMicro
1)
2)
3)
Other transportation
medium
1) Embedded management channel
2) Grooming
3) Protection switching for ring configurations
Feeder Node (DXX and MINI-LINK E
)
MINI-LINK Cross-connect Unit (MXU)
MINI-LINK E Micro
MINI-LINK E
MINI-LINK E and
5501
Figure 82 Network configuration with MXU
7.2.1 Embedded Management Channel
The MXU makes it possible to transport operation and maintenance data
between isolated sub-networ ks i n an available time slot in the 2 Mbit/s traffic.
However, time slot 0 is reserved according to ITU-T Rec G.704. The MXU can
be connected to the MMU (O&M connector), as described below, or to the
SAU (RAC connector).
The figure below shows how the left-hand M XU arranges operation and
maintenance data from a sub-networ k into one of the 64 kbit/s time slots.
Merged infor mation can be transported over any medium, for instance leased
line, to the right-hand M XU. The M XU separates traffic and operation and
maintenance data, which then can be supervised by MINI-LINK Netman.
116
AE/LZT 110 2012 R8C 2002-03-04
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