Technical Description
MMU2 B, MMU2 C and MMU2 D have the same functionality regarding
mechanics and interfaces. However, there is an important difference when it
comes to compatibility.
MMU2 D is not compatible with MMU2 B or MMU2 C, that is it can not be
combined with MMU2 B or MMU2 C in a 1+0 or 1+1 hop. MMU2 D can be
placed in the same subrack as MMU2 B or MMU2 C but can not be part of the
same radio terminal.
For RAU compatibility, see Table 1 on page 71.
10063
MMU2 C
MMU2 D
MMU2 B
MMU2 B
60V RAU
F
a
u
lt
P
o
w
e
r
B
R
ERICSSON
M
M
U2 C
6
0V
R
A
U
F
a
u
lt
P
o
w
e
r
B
R
E
R
IC
S
S
O
N
MM
U2 D
60V RAU
F
a
u
lt
P
o
w
e
r
B
R
E
R
IC
S
S
O
N
RAU
Figure 56 MMU2 B, C and D
MMU2 E 155 and MMU2 F 155 have the same functionality regarding
mechanics and interfaces but MMU2 F 155 also has support for XPIC. For the
STM-1 interface a Small Form Factor Pluggable (SFP) is needed. The SFP can
be either electrical (SFPe) or optical (SFPo), see Section 6.3 on page 130.
For RAU compatibility, see Table 1 on page 71.
70
12/221 02-CSH 109 32/1-V1 Uen A 2008-03-14
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