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MINI-LINK BAS 9-2

Technical Description EN/LZB 111 0542 P2B

9.1 Introduction

The MS, that performs the integrated control and supervision in all

MINI-LINK BAS units by means of the EM and the CP, continuously

monitors the transmission quality and alarm status.

The information is fed to the supervision channels, which are

extended throughout the MINI-LINK BAS equipment.

Communication with this integrated control and supervision system is

carried out by means of a Unix workstation along with suitable

software.

ET ..

ICS/ATM

Boards

FlexNU

ATM

network

R-AAS

C-AAS

(CE Shelf)

Ethernet

10BaseT

ICS/ATM

NCU

ICS/ATM

Figure 9-1 MINI-LINK BAS Control Architecture

9.1.1 Communication Channels

Operation and maintenance data between MINI-LINK BAS units are

distributed via CP and DPs. The data connection between EM and CP

is a 10BaseT Ethernet featured by a TCP/IP protocol.

Connections between the C-AAS (CE Shelf) and R-AASs (Radio

Shelves) are performed through the ATM Network by means of

optical links, SDH or SONET, with ICS/ATM protocol.

Connections between R-AASs and ATs are performed through the air

interface, NCU+RAUs+ FlexNU, using the ICS/ATM protocol.

Note: Reference is made to the Chapter 6: Management and

Control.

Ericsson MINI-LINK BAS User Manual

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