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3CC08991ATAA TQ BJA 01
Issue 01 -- March 2004
2.2.3 -- 1+1 configuration with multiplexer/demultiplexer protection
This configuration is available only in the classic IDU version.
It can be used (see Figure 9) to protect the link from failures of the MCU board in the main IDU. It comprises:
--
a main IDU, as in the 1+0 configuration but whose tributaries are configured in high impedance.
--
an extension IDU.
--
an access IDU.
--
two ODUs.
Figure 9 - Block diagram of a 1+1 station with multiplexer protection
Tributaries
1 to 16
One 2 Mbit/s
auxiliary
bit stream
(only at
34 Mbit/s)
ACCESS
INDOOR
UNIT
Equipment not included in the standard configuration but sold as options
EXTENSION INDOOR UNIT
DC
2 Mbit/s auxiliary
(only at 34 Mbit/s)
MAIN INDOOR UNIT
Cable
NMS
(Supervision
bus)
Back to
back
TS/TC
alarms
To
coupler
or
Antenna
Mediation
device
ESC
3/4/5
OUTDOOR
UNIT
Cable
Tel.
To
coupler
or
Antenna
EXT
OUTDOOR
UNIT
DC
Tributaries
1 to 16
Tributaries
1 to 16
Service
kit
Service
kit
2 Mbit/s auxiliary
(only at 34 Mbit/s)
EOW3 EOW4 EOW5
F
Alcatel or
Customer
OS
or
(RQ2)
(SNMP)
Software
key
Summary of Contents for 9400 UX
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