Ericsson LBI-39128 manual Maintenance

Models: LBI-39128

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MAINTENANCE

LBI-39128

 

 

Table 10 - Troubleshooting Symptoms (Continued)

 

 

 

 

 

SYMPTOM

POSSIBLE CAUSE(S)

CORRECTIVE ACTION

 

 

 

 

 

Constant transmitter alarm for one

Lower Alarm Limit is set too high or

Check and possibly re-configure the

 

transmitter, but transmitter’s power is

Upper Alarm Limit is set too low.

alarm limit(s) (see the Parameters

 

OK.

 

heading in the Operation section).

 

 

 

 

 

 

Power sensor at output of transmitter

Check and possibly re-calibrate the

 

 

needs calibration or is defective.

power sensor (see the Power Sensor

 

 

 

Calibration heading in this section).

 

 

 

 

 

 

Cable from the power sensor to the

Check the continuity of the cable from

 

 

PMU (can be many cables and

the power sensor to the PMU (see the

 

 

connectors in series) is connected to the

interconnection diagrams at the end of

 

 

wrong point or is defective.

this manual).

 

 

 

 

 

 

PMU input circuit is defective.

Apply a dc voltage (negative ground) to

 

 

 

the power sensor end of the cable to the

 

 

 

PMU (see Table 7 for the voltage to

 

 

 

represent the expected power). Turn off

 

 

 

transmitter at 12V power supply, turn

 

 

 

back on, and wait for test call. If the

 

 

 

alarm remains, the cable or the PMU

 

 

 

input is defective.

 

 

 

 

 

Occasional transmitter alarm for one

Power sensor at output of transmitter

Check and possibly re-calibrate the

 

transmitter, but transmitter’s power is

needs calibration or is defective.

power sensor (see the Power Sensor

 

OK.

 

Calibration heading in this section).

 

 

 

 

 

Occasional transmitter alarm for more

Alarm Delay parameter is set too short

Adjust the Alarm Delay parameter (see

 

than one transmitters, but each

(value too low).

the Alarm Delay Adjustment heading in

 

transmitter’s power is OK.

 

this section).

 

 

 

 

 

A transmitter alarm is not reported

Lower Alarm Limit is set to zero.

Re-configure the Lower Alarm Limit

 

when a cable between the transmitter’s

 

parameter for the transmitter to some

 

power sensor and the PMU is

 

non-zero value (see the Parameters

 

disconnected.

 

heading in the Operation section).

 

 

 

 

 

 

The transmitter channel is not PMU

Replace the Site Controller computer’s

 

 

enabled in the Site Controller

Personality PROMs with a new set that

 

 

computer’s Personality PROMs.

has all transmitter channels PMU

 

 

 

enabled. (see the Site Controller

 

 

 

Software heading in the Installation

 

 

 

section).

 

 

 

 

 

A transmitter alarm is reported to the

The fault tolerance level may have been

Check the Alarm Control Display

 

System Manager and someone turns off

exceeded (when the channel was turned

screen in the System Manager to see if a

 

that transmitter channel from the Site

off from the System Manager, reducing

is shown to the right of Power Mntr

 

Reconfiguration Channel screen in the

the number of total channels by one),

indicating that the fault tolerance has

 

System Manager - then later turns back

causing the alarmed channel to be

been exceeded. If the fault tolerance has

 

on, sees that the transmitter alarm is still

assigned as if normal. This is most

been exceeded, change the fault

 

being reported, yet also sees that the

likely to happen if the total number of

tolerance level or fix the alarmed

 

channel is being assigned to calls.

channels is small.

transmitter.

 

 

 

 

 

 

 

 

 

 

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Ericsson LBI-39128 manual Maintenance

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.