User Manual

Hardware Units
19-inch Space for Optional Equipment
A 2U-high 19-inch space for optional equipment, for which the RBS provides
climate control.
OXU
The following space for optional expansion (OXU) is available:
• Four positions (RBS 2206) or two positions (RBS 2206 V2) in the DXU/PSU
subrack
• A 1U-high 19-inch OXU position is available between the CXU and the
dTRU subrack.
RUs which typically are located in the OXU slots include the DXX and the
TMA-CM. The 19-inch position above the CXU is used for ASUs, HCUs, and
splitters.
Splitter
The splitter splits an RX signal from the CDU into two outputs. Six RX signals
can be split into 12 outputs.
Number of units: 0–1
TMA-CM-01
The TMA-CM-01 is used to provide up to six ddTMAs with 15 V DC power
through bias injectors in the RBS 2206. It is also used to identify TMA faults
and forward this information to the DXU. The TMA-CM-01 is mounted in an
OXU position.
Note: RBS 2206 only.
Number of units per cabinet: 0–2
TMA-CM-02
The TMA-CM-02 is used to provide up to six ddTMAs with 15 V DC power
through bias injectors in the RBS 2206 and RBS 2206 V2. It is also used to
identify TMA faults and forward this information to the DXU. The TMA-CM-02 is
mounted in an OXU position.
Number of units per cabinet: 0–2
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19/1551-LZA 701 0001 Uen PG1 | 2010-10-08