Operation and Maintenance Terminal
An MO does not necessarily have a one-
to-one relation with a physical unit in the
RBS, and the MO comprises either both
hardware and software or software only.
Passive RU An RU with a very low level of
intelligence. It is independent of the
processor system and has no connection
for O & M communication.
RU The smallest unit that can be handled on
site or in a repair center. Information
about the RU can be retrieved via OMT or
BSC.
Spare Bits A number of additional bits for spare use
in a timeslot 0 multiframe structure. This
is defined in /G. 704/. The use of these
bits is defined by the customer.
Sub-RU A sub-replaceable unit is always
connected to a superior Main RU. This
connection is used for retrieval of
equipment information. A Sub-RU
normally does not have a processor.
Timeslot 0 The timeslot 0 multiframe structure is
defined in /G. 704/.
28.3 Functions
28.3.1 User Interface
The OMT provides an easy-to-use graphical user interface. Well-known
hardware units and functions, for example a transmitter, appear as
graphical objects. There are a number of operations attached to each
graphical object, for example for retrieving information about it.
The user interface is based on a number of views. Each view contains a
set of objects, chosen so that the natural work flow of the user is
supported.
For user convenience there is an on-line help facility in the OMT.
28.3.2 Radio Base Station
The following user functions, related to the RBS as a whole, are
available in the OMT:
• Display RBS configuration, see chapter Installation Data Handling.
• Display RBS software revisions, display RU software revisions for
all Main RUs, see Section 28.3.11 Replaceable Unit on page 174.
• Display TEI/RU list, display list of TEI and RU Instances for the
CMRU and for the DMRUs with a direct signalling link to the
BSC in the cabinet (see also Section 28.3.11 Replaceable Unit on
page 174).
170 (306)
EN/LZT 123 2697 R5A
1998-08-13
© Ericsson Radio Systems AB
— All Rights Reserved —
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