MINI-LINKEandEMicro
To other units within the same
access module or to units in
another access module
Operation
and
Maintenance
Interfaces
Secondary
voltages
RCC
Control &
Supervision
DC/DC
Other MMU or SMU
Traffic
Interface
and
Router
2/8
Multiplexer
Demultiplexer
4x2
Mbit/s
Primary
power
supply
Radio Frame
Multiplexer
Radio Frame
Demultiplexer
Modulator
Demodulator
Cable
Interface
Radio
Unit
SAU
Service
channels
SAU
Service
channels
HCC
8Mbit/s
Other MMU or SMU
SMU, SAU
HCC
Converter
NCC
3536
Traffic
Interface
and
Router
Figure 38 Block diagram for configuration 4x2/8 Mbit/s
3.8.2 Functional Description
The blocks of the MMU are described in the following text.
3.8.2.1 Traffic Interface and Traffic Router
The t raffic inputs and outputs are connected to/fr om the MMU front and the
backplane of the access module.
The traffic signals connected to the MMU front are shaped in a pulse
regenerating circuit. The clock is generated and the signal is line-decoded on
the transmitting side and line-encoded on the receiving side.
The t raffic signals connected to the backplane are routed to other MMUs or
SMUs in the same access module. The routing is done without any cabling and
the interconnection is controlled from MINI-LINK N etman or from a PC with the
MINI-LINK Service Manager (MSM).
46
AE/LZT 110 2012 R8C 2002-03-04
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