Ericsson MINI-LINK TN R3 ETSI - Page 35

Basic Node
TX OPT. RX
RX
TX
EL.
ERICSSON
LTU B 155
Caution
Invisible
Laser Radiation
When Open
Class 1 Laser
Fault
Power
BR
TX OPT. RX
RX
TX
EL.
ERICSSON
LTU 155e/o
Caution
Invisible
Laser Radiation
When Open
Class 1 Laser
Fault
Power
BR
RX
TX
EL.
ERICSSON
LTU 155e
Fault
Power
BR
Optical
8278
LTU 155e
LTU 155e/o
LTU B 155
Optical
Electrical
Electrical
Electrical
Figure 31 LTU 155
3.5.2.1 Functional Blocks
This section describes the internal and external functions of the LTU 155,
based on the block diagram in Figure 32 on page 30.
29
4/1555-CSH 109 32/1-V1 Uen B 2007-09-14