Ericsson MINI-LINK E, Technical Description

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MINI-LINK E and E Micro
6.1.2 Communication Channels
M I N I - L I N K E
R A U
N C C
A M M , M K I I
o r
M I N I - L I N K C
A M M
E A C
S I T E A S I T E B S I T E C
S A U
( M X U )
F i x e d l i n e A M M
A M M
H C C
R C C
M I N I - L I N K E
R A U
M I N I - L I N K E
R A U
S A U
( M X U )
H C C
M I N I - L I N K E
M i c r o
S I T E D
A M M
M I N I - L I N K E
M i c r o
M I N I - L I N K E
M i c r o
2 M b i t / s
t o B T S
N C C
N C C
N C C
R C B
3 5 6 6
Figure 67 Connection of terminals through the communication channels
The Node Communication Channel (NCC) is used for distribution of operation
and maintenance data between units in one or two MINI-LINK E Access Module
Magazines (AMMs). NCC connection between units in one AMM is done
through the backplane, but for connection between two AMMs a connector on
the MMU front is used.
NCC is also used for distribution of operation and maintenance data between up
to three MINI-LINK E Micro radios on the same site. Connectors for MINI-LINK
E Micro are located inside the Radio Connection Box (RCB).
Alternatively, the EAC connector on the SAU can be used for interconnection
of AMMs within a site. EAC must be used for interconnection of more than
two AMMs.
Data between indoor units and the Radio Unit (RAU) is distributed through the
Radio Communication Channel (RCC) . Over the hop, data between terminals
is distributed through the Hop Communication Channel (HCC) .
Data to other MINI-LINK E access modules on the same site or to other
MINI-LINK equipment on the site is distributed through the External Alarm
Channel (EAC) in the SAU. Operation and maintenance data to and from other
MINI-LINK clusters is distributed through the Remote Alarm Channel (RAC)
through a fixed line (RS 232C or ITU-T G.703 64 kbit/s) in the SAU. The O&M
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AE/LZT 110 2012 R8C 2002-03-04