Ericsson MINI-LINK E - SMU 8 X2

MINI-LINKEandEMicro
3.9.1.2 SMU 8x2
SMU 8x2 contains two independent 2/8 Mbit/s multiplexers/demultiplexers and
the 1+1 MMU selection switch. It can terminate up to eight 2 Mbit/s traffic
signals.
4x2 or 8
Traffic
Interface
and
Router
2/8
Multiplexer
Demultiplexer
Traffic
Router
8 Mbit/s
Operation &
Maintenance
Interface
MMU 1
MMU 2
Secondary
voltages
MMU
Alarms from MMUs
Control &
Supervision
1 + 1
Switch Logic
DC/DC
Converter
MMU 1
NCC
Other units in
the access module
(1+1 only)
Connection to front
or other SMU/MMU
2x8
MMU 2
2x8
Connection to front
or other SMU/MMU
2
8
8
8
8
8
8
2
2
2
4x2 or 8
Traffic
Interface
and
Router
2/8
Multiplexer
Demultiplexer
2
8
8
2
2
2
3552
Figure 43 SMU 8x2 block diagram
55
AE/LZT 110 2012 R8C 2002- 03-04