Ericsson LBI-39128 manual Glossary

Page 36

LBI-39128

GLOSSARY

 

 

 

 

GLOSSARY

Antenna Mapping

Antenna Mapping is the process of re-configuring the PMU’s Antenna

 

Channel parameter through the use of an RS-232 CRT terminal (or PC

 

with terminal emulation software). This parameter tells the PMU which

 

antenna is used by each transmitter (actually, which Analog Input # is

 

connected to that antenna’s power sensor).

EDACS

Enhanced Digital Access Communications System

EDACS Interface Panel

An EDACS Interface Panel is a 19-inch wide panel mounted in the top

 

rear of each EDACS Repeater and Site Controller cabinet. The panels

 

are used as the connection point for all cables between adjacent

 

EDACS Repeater and Site Controller cabinets.

Power Sensor

The Power Sensor is the RF power-detecting device used by the PMU

 

to monitor the power at a specific point in the RF transmit path. The

 

power sensor may be unidirectional (senses power in one direction) or

 

bi-directional (senses power in both directions).

Power Sensor Module

The Power Sensor module is the name of the board used in the upper

 

EDACS Interface Panel of a Site Controller cabinet containing the

 

PMU option. Its sole function is to provide a connection point between

 

cables going to the PMU (inside the cabinet) and cables going to the

 

power sensors (outside the cabinet).

RS232 CRT Terminal

CRT terminal with RS232 interface that can be used to communicate

 

with and configure terminal-configurable software. Also includes PC

 

operating in the terminal mode with terminal emulation software.

SWR

The Standing Wave Ratio is the ratio of the amplitude of a standing

 

wave at an anti-node to the amplitude at a node.

VDT Interface

Both VDT Interfaces on the back of the PMU are RS232 ports with

 

default baud rates of 9600 BPS. The left-hand VDT Interface is used

 

for the connection to a programming terminal. The right-hand VDT

 

Interface is used for the connection to the Site Controller computer.

Ericsson Inc.

 

Private Radio Systems

 

Mountain View Road

 

Lynchburg, Virginia 24502

 

1-800-528-7711 (Outside USA, 804-528-7711)

Printed in U.S.A.

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Contents
Installation & Operation Contents Table of Contents Figures and Tables List of Figures and TablesSpecifications SpecificationsLBI-39128 VAX Site Controller Computer Application Software PromsPersonality Proms Site Controller Hardware Site Controller SoftwarePMU Hardware Application Software PROMsPersonality PROMs Addition from No PMUProcedure Parts RequiredDB-9 M DB-9 F Upgrade from Old PMU Trunking CardAdaptation from Old PMU Initial POWER-UP Terminal Setup PMU ProgrammingSoftware Initialization Sentry PMU REV 8.6 12/07/94 Time/Date/Password Antenna Mapping Power Sensor Calibration Unidirectional Power SensorsBi-directional Power Sensors Final Check Startup MonitorAlarms Power MeasurementsSWR Calculations Alarm Reporting Transmitter AlarmsAntenna Alarms Excessive AlarmsChannel PMU Enable Site PMU EnableParameters PMU ModelOperation Transmitter Lower Alarm Limit Transmitter Upper Alarm LimitAntenna Lower Alarm Limit Antenna Upper Alarm LimitAlarm Limit RE-CONFIGURATION Transmitter Power Alarm LimitsAlarm Limits As Installed Antenna Power Alarm LimitsAntenna SWR Alarm Limit Time and Date Adjustment Diagnostic ScreensAlarm History Report Screen Channel Monitor ScreenAlarm History Report Site not Programmed Time Software Updates Erase ALL ProgrammingAlarm Delay Adjustment Troubleshooting Symptom Possible Causes Corrective ActionMaintenance Glossary GlossaryInterconnection Diagram PMU Interconnection Diagram Edacs Site Controller Cabinet