Ericsson LBI-39128 manual Startup, Monitor

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LBI-39128

OPERATION

OPERATION

The PMU performs the following operations:

∙Monitors the detector output voltages from the transmitter and antenna power sensors under the direction of the Site Controller computer.

∙Converts the detector output voltages to power and SWR levels.

∙Compares the power and SWR levels to user- configurable alarm threshold limits.

∙Sets the power alarm status for each monitored transmitter and antenna.

∙Reports the power alarm status of each transmitter and antenna to the Site Controller computer.

The Site Controller computer performs the following operations:

∙Tells the PMU which transmitter channels to monitor.

∙Tells the PMU when each transmitter starts and stops transmitting.

∙Uses the power alarm status to help determine which transmitter channels are useable.

∙Uses the power alarm status to control the ANT PWR FAIL and CHN PWR FAIL indicators on the Alarm and Control Unit (if present in the system).

∙Uses the power alarm status to direct Test Calls by the Test Unit (if present in the system).

∙Reports the power alarm status to the System Manager (if present in the system).

STARTUP

Directions from the Site Controller computer to the PMU, and reports of power alarm status from the PMU to the Site Controller computer, are sent over the serial data link connecting the two.

Polling Recovery

As soon as the Site Controller computer is operating (power on and initialization complete) and the parameter that enables the PMU option is enabled (initialized from the Personality PROMs or re-configured from the System

Manager), it should start sending a poll message to the PMU once each second (even if the PMU doesn’t reply or isn’t connected).

As soon as the PMU is operating (power on), it should start looking for messages from the Site Controller computer (even if the Site Controller computer isn’t sending a poll message or isn’t connected). As soon as it receives a poll message, it should reply with a status message within one second.

EDACS Configuration Setup

After receiving five consecutive status message responses (each within one second) to five consecutive poll messages, the Site Controller computer should send the EDACS Configuration Setup information to the PMU. This information consists of which transmitter channel numbers are PMU enabled, and the low alarm limit for each transmitter channel number.

After receiving the EDACS Configuration Setup information, the PMU should be ready to monitor the transmitter and antenna power sensors under the direction of the Site Controller computer. The Site Controller computer should continue to send a poll message to the PMU once each second, and the PMU should continue to reply with a status message within one second of each poll message.

Polling Failure

If at any time the PMU fails to reply to a poll message within one second, or the Site Controller computer is initialized (by reset or power-up), the Site Controller computer must again receive five consecutive replies and send the EDACS Configuration Setup information before the PMU is again ready to monitor the power sensors.

MONITOR

Power Sensor Monitoring

When the PMU is ready to monitor the power sensors, the Site Controller computer sends a message to the PMU each time a transmitter is keyed or unkeyed. The message tells the PMU which transmitters are keyed (transmitting), and which are not. From the EDACS Configuration Setup information and the user-configured PMU parameters, the PMU determines which keyed transmitter channel numbers are PMU enabled, which sensors to monitor, what calculations to make, and what alarm limits to use.

Every 250 milliseconds the PMU should measure all analog inputs associated with all PMU enabled keyed

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Contents Installation & Operation Contents Table of Contents Figures and Tables List of Figures and TablesSpecifications SpecificationsLBI-39128 Application Software Proms VAX Site Controller ComputerPersonality Proms Site Controller Hardware Site Controller SoftwarePersonality PROMs PMU HardwareApplication Software PROMs Addition from No PMUProcedure Parts RequiredDB-9 M DB-9 F Upgrade from Old PMU Trunking CardAdaptation from Old PMU Initial POWER-UP PMU Programming Terminal SetupSoftware 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 MonitorPower Measurements AlarmsSWR Calculations Antenna Alarms Alarm ReportingTransmitter Alarms Excessive AlarmsParameters Channel PMU EnableSite PMU Enable PMU ModelOperation Antenna Lower Alarm Limit Transmitter Lower Alarm LimitTransmitter Upper Alarm Limit Antenna Upper Alarm LimitAlarm Limits As Installed Alarm Limit RE-CONFIGURATIONTransmitter Power Alarm Limits Antenna Power Alarm LimitsAntenna SWR Alarm Limit Alarm History Report Screen Time and Date AdjustmentDiagnostic Screens 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

LBI-39128 specifications

Ericsson LBI-39128 is a comprehensive communication solution designed to meet the ever-evolving demands of modern telecommunications. It is renowned for its ability to enhance network performance while providing a robust framework for various communication technologies. This product primarily targets service providers, enabling them to maximize their operational efficiency and improve service delivery.

One of the key features of the LBI-39128 is its versatility in supporting multiple generation technologies, including 2G, 3G, LTE, and even 5G. This ensures that service providers can seamlessly integrate their existing infrastructure and gradually evolve towards more advanced network capabilities without the need for a complete overhaul. The product caters to a wide array of deployment scenarios, from urban environments with high user density to rural areas requiring expansive coverage.

In terms of network performance, the LBI-39128 excels with its advanced radio technologies. It employs Massive MIMO (Multiple Input Multiple Output) and beamforming techniques, which significantly enhance spectral efficiency and improve user experience. With multiple antennas transmitting and receiving signals simultaneously, users benefit from increased throughput and reduced latency, essential for applications such as video streaming and real-time communications.

Another critical characteristic of the Ericsson LBI-39128 is its focus on energy efficiency. The product integrates intelligent power management systems that optimize energy consumption, thereby reducing operational costs for service providers. This aligns with the growing emphasis on sustainable practices within the telecommunications industry.

Moreover, the LBI-39128 features advanced management and automation capabilities. Its network function virtualization (NFV) support enables operators to deploy virtualized network functions efficiently, allowing for dynamic scaling and resource allocation based on real-time demand. This agility is crucial for handling varying loads and enhancing the overall resilience of the network.

Security is also a primary consideration in the design of the LBI-39128. It incorporates robust encryption methods and secure access protocols to protect sensitive data and ensure the integrity of communication channels. This is particularly important in an age where cyber threats are becoming increasingly prevalent.

In summary, the Ericsson LBI-39128 is a state-of-the-art telecommunications solution that stands out due to its support for multiple technologies, advanced radio capabilities, energy efficiency, automated management, and robust security features. Its design reflects the needs of contemporary service providers, allowing them to build and sustain high-performance networks that meet the demands of future communications.
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