TelecomStudy18

ZAHP PRINT ALARM HISTORY ZAHO PRINT ALARMS CURRENTLY ON ZIGO DISPLAY MML COMMAND LOG ZWQO SHOW SOFTWARE PACKAGE INFORMATION ZW7I INTERROGATE LICENCE OR FEATURE INFORMATION ZEFR RESET SITE/BCF ZEQS LOCK UNLOCK BTS ZERS LOCK UNLOCK TRX ZEQM MODIFY BTS PARAMETERS ZEAO OUTPUT GSM ADJACENT ZEUO OUTPUT POWER CONTROL PARAMETERS ZEHO OUTPUT HANDOVER PARAMETERS

All messages sent on the A-bis interface use the LAPD protocol that enables reliable transmission of information. LAPD provides two kinds of transfer modes: Unacknowledged info transfer with no guarantee that the information frame is successfully delivered to the addressee, and acknowledged information transfer, where each signal is acknowledged, and the system makes sure that the frame has reached the destination successfully. Only measurement reports use unacknowledged information transfer. Frame Structure and Data Links A flag, 01111110 (h'7E), delimits a frame. The one flag is enough between consecutive frames. The receiving entity looks for the flag 01111110 to synchronize on the start of a frame. TEI and SAPI are used to access the right entity and right function at the receiving end. SAPI is the address used to access different functions, such as TRXC, CF and Layer 2 management procedures, within one physical entity. The CF (Central Function...

The Remote OMT Over IP is used to remotely perform OMT functionality from a TCP/IP network connecting BSCs. The Remote OMT Over IP is mainly used for: Getting detailed information about an RBS 2000 - The information can be used to remotely verify that an RBS 2000 is correctly configured and to perform preventive maintenance. Fault localization of an RBS 2000 - Experts can use the Remote OMT Over IP to perform fault localization and to guide service personnel at site Restart of a whole RBS 2000 or a part of an RBS 2000 - The same type of restart that is achieved by pushing a reset button in an RBS 2000 can be performed with the Remote OMT Over IP. This may be useful in situations with abnormal RBS behavior Retrieve detailed information about an RBS 2000 remotely from a TCP/IP network connecting BSCs. Perform fault localization of an RBS 2000 remotely from a TCP/IP network connecting BSCs. This means that it will ...

Types of Fault Map Internal Class 1A Internal to BTS, affecting MO, within MO Internal Class 1B Internal to BTS, affecting MO, within MO environment Internal Class 2A Internal to BTS, not affecting MO, within MO External Class 1 External to BTS and affecting MO External Class 2 External to BTS not affecting MO The alarm slogan is the description of the current alarm situation for an MO or TG. The alarm slogans 'BTS INTERNAL' and 'BTS EXTERNAL' each describe more than one alarm situation. The remaining alarm slogans each describe a unique alarm situation. This section describes how each alarm slogan should be interpreted. TGC FAULT No active TGC application exists in the Transceiver Group. PERMANENT FAULT A managed object is classified as being permanently faulty when fault situations have occurred, and have been cleared, a certain number of times within ...