Ericsson MINI-LINK TN R3 ETSI Technical Description page 70

MINI-LINK TN R3 ETSI
High-speed bus
TDM Bus
PCI Bus
SPI Bus
Power Bus
Figure 59 Block diagram for MMU2 E/F 155
4.2.2.1 TDM Multiplexer/Demultiplexer
This block interfaces the TDM bus by receiving and transmitting the traffic
(nxE1) and DCC.
It performs 2/8 and 8/34 multiplexing, depending on the traffic capacity, for
further transmission to the Radio Frame Multiplexer.
In the receiving direction, it performs 34/8 and 8/2 demultiplexing , depending
on the traffic capacity. The demultiplexed traffic and DCC are transmitted to
the TDM bus.
In a protected system, the block interfaces the BPI bus, see Section 4.6.2
on page 81.
Note: The TDM block in MMU2 E/F 155 performs no multiplexing/demultiplexi
Note: The high-speed bus will be possible to use with future functionality such
64
BPI Bus (1+1)
DCC
Traffic
TDM
(Wayside traffic,
E1 only)
DCC
Traffic
HCC
ng. The traffic in the receiving direction equals 1xE1.
as integrated ADM. It is currently not enabled.
BPI Bus (1+1)
Radio Frame
Multiplexer
Radio Frame
Demultiplexer
HCC
RCC
Control and
Supervision
SPI
Secondary
voltages
Power
4/1555-CSH 109 32/1-V1 Uen B 2007-09-14
Modulator
Cable
Interface
Demodulator
STM-1
Line interface
RAU
XPIC
(MMU2 F 155)
9840