Ericsson MINI-LINK TN R3 ETSI - Atu C

MINI-LINK TN R3 ETSI
5.3 ATU C
ATU C offers 2x2 or 4x2 traffic capacity for transmission of PDH traffic.
O&M RL
60V RAU
+ DC -
24-60V
E1:4
E1:3
E1:2
E1:1
Power
8275
RAU
24 - 60 V DC
E1
O&M RL
Figure 83 A TU C
5.3.1 Functio nal Blocks
This section describes the functions of ATU C based on the block diagram in
Figure 84 on page 100.
8276
Power
Secondary
voltages
Line
Interface
O&M RL
External Power
Supply
24 – 60 V DC
Radio Frame
Multiplexer
Modulator
Cable
Interface
Demodulator
Radio Frame
Demultiplexer
DCC
DCC
RCC
RAU
Traffic
Traffic
Control and
Supervision
E1
E1
HCC
HCC
E1
E1
Figure 84 Block diagram for ATU C
5.3.1.1 Line Interface
This block provides the 4 E1 line interfaces for connection of PDH traffic. It
interfaces Radio Frame Multiplexer block by transmitting and receiving the
traffic (nxE1).
1
00
4
/1555-CSH 109 32/1-V1 Uen B 2007-09-14