Operation and Maintenance Support
sub-RU does not normally have a
processor. It should be observed that a
RU with a processor that is not loadable is
classified as a sub-RU.
TDMRU
Transceiver DMRU. A TDMRU is a
DMRU that handles transceiver
functionality.
44.3
Buttons
Purpose
To be able to reset, to start test operation function and to change
between local and remote mode.
Preconditions
For the CPU Reset-button and the Test-button there are no precondition
requirements. For the Local/Remote-button, see Section 44.4 Change
RU to Local Mode on page 347 and Section 44.5 Change RU to
Remote Mode on page 348. The functions are initiated when the
buttons are pushed.
Description
CPU Reset:
A CPU Reset button can be found on the CMRU, TDMRU and
EDMRU (DXU, TRU and ECU). When the CPU Reset button is
pushed the unit itself and all its sub units will be reset.
Local/Remote:
A Local/Remote button can be found on the CMRU and TDMRU
(DXU and TRU). The Local/Remote button is used to change RU mode
to Local or Remote. For further description of the Local/Remote button,
see Section 44.4 Change RU to Local Mode on page 347and Section
44.5 Change RU to Remote Mode on page 348.
Test:
Test buttons can be found on the TDMRU (TRU). The Test function is
not used.
44.4
Change RU to Local Mode
Purpose
To change from Remote Mode to Local Mode which means to release
and stop the layer 2 communication links on Abis interface and to
disable MO TX and MO TS if they were enabled.
Preconditions and Initiation
The RU operational state should be IRO, RFU and IU. The RU Mode
should be Remote. The function is initiated when the Local/Remote
button on RU is pushed.
EN/LZT 720 0008
P2A
2001-11-28
347 (485)
© Ericsson Radio Systems AB
— All Rights Reserved —
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Summary of Contents for RBS 2106
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