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PCBs for Telecommunication

Telecommunication is basically a network, enabling us to transmit and receive any information between different locations, these transmitted signals are either in analog form or in digital form, and are transmitted by means of optical or electromagnetic signals. Transmitted information can be in any form like in audio or video format. Examples of telecommunication systems include telephone and mobile networks, cable networks, and internet networks.

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Table of Contents

Types of Telecommunication Systems:

Telecommunication systems can be classified into the following three types

Two-way Transmission Speech:

The best example of a two-way transmission system is the phone network either wired or wireless. In the early days of the phone, there was only a wired network, based on analog and electromagnetic signals, but nowadays, there is an option to opt for either a wire or wireless network. In this system, users from both ends can interact with each other simultaneously.

Telecommunication system for data transmission:

Previously, various protocols were used to send data across telecommunication networks. Because of the internet, the internet protocol (IP) is now considered a standard protocol for the transmission of data. IP-based systems take over almost all data transmission systems. To transmit the data in this system, the whole data is split in form of small different packets along with source and destination address tags, and these tags are evaluated by routers, located at each node of the telecommunication system.

Merging data transmission with speech transmission through voice over IP-Technology:

Data networks are suited for time-critical real-time applications such as telephony due to the rising efficiency of IP networks, small latency times and jitter values, and large bandwidths. Phone networks and data networks have nearly completely integrated due to voice-over-IP technologies. This provides the opportunity to operate a single infrastructure for data and speech transmission.

PCBs Design Considerations for Telecommunication Systems:

It is important to consider the following points while designing PCBs for telecommunication systems

Knowing Specification:

First of all, knowing the specifications and requirements for PCB is the key to designing a perfect fit-to-requirement PCB. It is crucial to know how the final fabricated PCB will work, its related problems, and its niche market. PCB for telecommunication systems rely greatly on the desired features of the system like how electronic components on PCB are energized, how to interface outer equipment with PCB, and what will be the size for PCB to fit properly in the system.

Hardware and Software:

While designing PCB, it is important to check for what kind of hardware will be used to have the final product and then design the PCB accordingly. Sometimes, it becomes optional to use hardware or software to enable PCB to perform a certain task, whenever this happens then, the best option is to check the pros of both and opt for the best. Following is the comparison of some advantages of hardware and software side by side

Advantages of HardwareAdvantages of software
Debugging is easierRequires a lesser number of ElectronicComponents
Difficult to hack and have lesser security concernsProvide an option to get timely updates easily
Ability to have digital and analog based circuitAs hardware is reduced so they are cheaper
Once developed perfectly then have a lesser probability to failTroubleshooting is easier if it gets fails the field.
  

Microcontroller:

The PCB design is impossible without the microcontroller. It serves as the “brain” of the product, mostly i involved in transferring information to and from other components and also processing the data.

While selecting a microcontroller, it is important to know the requirements first, and then consider some aspects as jotted down

  • Programmable: Sometimes, it’s beneficial t to have a programmable controller than having a one-time programmable microcontroller.
  • Peripherals: Some microcontrollers offer built-in peripherals and some don’t, so it is recommended to choose wisely which one suits the required PCB design.
  • Memory: while selecting the right microcontroller for PCB, first have a look at internal RAM and also options related to external RAM.
  • Technical Specifications: Also keep other technical specifications in mind while choosing like nominal operational voltages, output signal ranges, and vice versa.

Schematics and PCB Designing:

This step helps to materialize the design from the idea. While designing schematics, it is important to consider the following points

  • Components Designation
  • Component Values
  • Pins
  • Ratings
 

While PCB designing it is important to consider the following points

  • Ensure enough space for components
  • Apply enough solder mask
  • Use readily available component packages according to the application
  • Use adequate clearance

Components stuffing:

Like other processes for telecommunication PCB fabrication, Component placement and routing raises durability and performance concerns. Component stuffing always effects

  • Thermal management
  • Electrical Noise
  • Function
 

After the fabrication of the PCB, the next step is the stuffing of components on the PCB. In order to place components in a perfect manner, consider following the steps

  • Try to place all components in the same direction to look the PCB symmetrical and also to reduce soldering errors, which is one of the major causes of PCB failure.
  • Try to solder heat-generating components a little high to the PCB surface for better airflowto manage thermal efficiency.

Quality Check

It’s now time to do quality tests on the finalized PCB. Use easily accessible tools, such as a Design Rule Checker and an Electrical Rules Checker, to confirm that the design complies with all requirements and restrictions and to prevent design mistakes.

Applications of Telecommunication PCBs:

PCBs are widely used in the telecommunication industry as a fundamental component for designing and manufacturing various electronic devices, such as mobile phones, routers, modems, and communication systems. PCBs have revolutionized the telecommunication industry by enabling the miniaturization of electronic devices, reducing their production cost, and improving their reliability and performance.

In this article, we will discuss the applications of PCBs in the telecommunication industry in detail.

Wireless Communication Systems

Printed Circuit Boards (PCBs) play a crucial role in wireless communication systems in the telecom industry. They serve as the foundation for the electronic components that make up the system, allowing for the efficient and reliable transfer of information between devices. The main role of PCB in wireless communications are:

  • Interconnectivity: PCBs provide the necessary interconnectivity between different components of a wireless communication system, such as antennas, transceivers, amplifiers, and filters. They allow for the efficient transfer of electrical signals between these components, helping to ensure the system functions correctly.
  •  Signal Integrity: PCBs help maintain the signal integrity of wireless communication systems. Signal integrity refers to the quality and reliability of the electrical signals that are transmitted through the system. PCBs can be designed to reduce noise, impedance mismatches, and other factors that can degrade signal quality, leading to better performance and reliability of the wireless communication system.

 

Wireless Communication Card

Satellite Communication Systems

PCBs play a crucial role in satellite systems, as they are used to connect and control the various electronic components that make up the system. Some specific applications for satellite communication systems are:

Power distribution: PCBs are used to distribute power to various components in the satellite system. The PCB can include power relegation and distribution circuits, which ensures that each component receives the correct voltage and current.

Data Processing: PCBs are used to process and store data in satellite systems. The PCB includes microprocessors and memory chips, which are used to control and store data from satellites.

Thermal Management: PCBs are used to manage the temperature of the satellite systems. The PCB includes thermal management circuits, which control the flow of heat within the system and prevent overheating.

PCB board of Satellite Control System

Telephonic Switching Systems

PCB boards are used to connect and route electrical signals between various components in the system, including the switch matrix, control circuits, and subscriber lines.

Telephonic switching systems rely on PCBs to provide a stable and reliable platform for the transmission and processing of voice and data signals. PCBs are designed to withstand the harsh environmental conditions often found in telecom networks, including temperature fluctuations, humidity, and electromagnetic interference. PCBs are also essential for the scalability and modularity of telephonic switching systems. As networks grow and evolve, new components can be added to the system by simply adding new PCBs, rather than requiring a complete overhaul of the system.

Telephonic Switching Card

Private Branch Exchange (PBX) systems

PCBs, or printed circuit boards, play an extremely critical role in PBX (private branch exchange) systems in the telecom industry. These systems are used to manage and route internal phone calls within an organization, and often also connect to the public telephone network.

In PBX systems, PCBs are used to connect and route electrical signals between various components, including the control circuits, interface circuits, and subscriber lines. These boards also enable the integration of additional features and functionalities, such as voicemail, call forwarding, and call waiting.

 

PBX systems rely on PCBs to provide a stable and reliable platform for the transmission and processing of voice and data signals. PCBs are designed to withstand the environmental conditions often found in telecom networks, including temperature fluctuations, humidity, and electromagnetic interference.

PBX system card

Signal boosting systems

PCBs are widely used in signal-boosting systems because they offer a compact, efficient, and cost-effective way to connect and control electronic components. Some specific applications of signal-boosting systems are:

Amplifier and Filter circuits: PCBs are used to create amplifier and filter circuits. Amplifier circuits boost the signal strength of a weak signal while filter circuits remove the unwanted noise or interference from the signal. These circuits can be designed and printed on PCB, making it easy to assemble and manufacture.

Signal Routing: PCBs supply a compact and efficient way to route signals between different components in signal-boosting systems.

Impedance Matching: PCBs are used to match the impedance of different components in the signal-boosting system which ensures that the signal is transmitted efficiently.

Blue PCB

Mobile phones

Mobile phones are the most common telecommunication devices that use PCBs. The PCB in a mobile phone supplies the circuitry to connect the various components of the phone, such as the battery, display, speaker, microphone, camera, and the processor. The PCB in a mobile phone is designed to be as small as possible, to make the phone compact and lightweight.

Mobile Phone Card

Fiber optic systems

Fiber optic systems are used to transmit data over long distances. The PCB in a fiber optic system provides the circuitry to connect various components, such as the transmitters, receivers, amplifiers, and the fiber optic cable. The PCB in a fiber optic system is designed to be highly efficient and reliable to ensure that it can transmit data without any loss or distortion.

Fiber Circuit

Industrial Wireless Communication Systems

In the telecom industry, PCBs are used in a variety of wireless communication devices, such as smartphones, routers, modems, and other networking equipment. PCBs are also used in the construction of wireless base stations, which are used to transmit and receive signals between wireless devices and the telecom network.

PCBs are essential for the proper functioning of wireless communication devices, as they provide a stable and reliable electrical connection between the various components. They also help to reduce the size and weight of wireless communication devices, which is critical in the telecom industry, where compact and lightweight devices are highly valued.

 

PCBs are used to create custom antennas for wireless communication systems, which are essential for transmitting and receiving signals between wireless devices. They are also used to create filters, amplifiers, and other specialized components that are required for wireless communication systems to function properly. Some specific applications of industrial wireless communication are: 

Antenna Design: The antenna is one of the most important components of a mobile device as it allows device-to-device communication. PCBs are used to design and manufacture antennas for mobile devices.

Signal Processing: PCBs help in processing and transmitting signals between different components of the mobile device. They ensure that the signal is strong and clear, which is important for voice and data communication.

Power Management: PCBs help in managing the smooth power supply to different components of mobile devices like processors, displays, etc.

Manufacturing Efficiency: PCBs allow for efficient manufacturing of mobile devices, as they can be mass-produced using automation. This makes it easier to produce mobile devices in large quantities and at a lower cost.

Industrial Wireless MODBUS Gateway

Video Conferencing Systems

PCBs are used in video conferencing systems to create the necessary electrical connections between the various components of the system, such as the camera, microphone, display, and speaker.

PCBs are used to connect the components of the video conferencing system in a way that ensures high-quality audio and video transmission. They provide a stable and reliable electrical connection between the various components of the system, which is critical for the proper functioning of the system.

In addition, PCBs are used to create specialized components for video conferencing systems, such as audio and video codecs. These components are essential for the compression and decompression of audio and video signals, which allows for high-quality transmission of audio and video over the internet.

PCBs are also used to create custom camera modules for video conferencing systems. These camera modules are designed to meet the specific requirements of the video conferencing system, such as resolution, frame rate, and field of view.

Video Conferencing Camera PCB board with Auto Speaker Focus

High speed servers and routers

In high-speed servers and routers, PCBs are designed to provide high-speed data transfer and low signal loss. They are used to create high-speed interconnects between the various components of the system, which enables fast data transfer rates.

PCBs are used to create specialized components for high-speed servers and routers, such as high-speed memory modules, network interface cards, and power distribution units. These components are designed to provide high-speed and reliable performance, which is critical in the telecom industry where data transfer rates and reliability are essential.

PCBs are also used in the design of high-speed data buses, such as PCI Express and Serial Attached SCSI (SAS), which are used to transfer data between the various components of the system. These data buses require high-speed and low signal loss connections, which are achieved using high-quality PCB materials and design techniques.

5Port Board PCB router with DHCP server 5

Digital Communication Systems

PCBs are an essential component in digital communication systems, as they offer a reliable and cost-effective way to connect electrical components. The design and construction of PCBs for communication systems require specialized expertise to ensure that they meet the demanding requirements of modern communication technology. Some specific applications for digital communication systems are:

Signal Processing and Signal Routing: PCBs are used for signal processing and signal routing in digital communication systems. PCBs for signal processing include amplifiers, filters, modulators, and demodulators which are used to modify and manipulate the transmitted signals whereas the PCB also provides a compact and efficient way to connect the electrical components together which minimizes signal loss and interference.

System Control: PCBs are used to control the system operations of the communication system. The PCB includes microcontrollers and other control circuits, which are used to monitor and control the operating systems.

PCB board of QPSK Modulation and Demodulation

Video Collaboration Systems

PCBs play an important role in video collaboration systems as they are responsible for providing the necessary connectivity and functionality required for video collaboration systems to work efficiently. Some specific applications of PCB in video collaboration systems are:

Video Processing: PCBs are used to process and transmit high-quality and clear video signals between different components of the video collaboration system.

Audio Processing: PCBs are used to process and transmit high-quality, clear, and crisp audio signals between different components of the video collaboration systems, which is important for effective communication during video conferences.

Component Integration: PCBs allow for the integration of various components onto a single board, which reduces the size of the video collaboration system and makes it more portable.

GPS Systems

GPS (Global Positioning System) systems are used for navigation and location tracking. The PCB in a GPS system provides the circuitry to connect various components, such as the antenna, receiver, power supply, and the computer. The PCB in a GPS system is designed to be highly efficient and reliable to ensure that it can provide accurate location data in real-time.

Car GPS Navigation Board

Conclusion

In conclusion, PCBs are critical components in the telecommunication industry as they provide the circuitry to connect various components in electronic devices. PCBs enable the miniaturization of electronic devices, reduce their production cost, and improve their reliability and performance. The design of a PCB for a specific application depends on various factors, such as the size and weight of the device, the operating environment, and the required performance. Therefore, it is essential to have a deep understanding of the application and the requirements to design and manufacture a high-quality PCB. ELE PCB is a professional telecom PCB assembly manufacturer, please feel free to get your quote.

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ELE PCB has got the IS09001:2015, IS013485:2016, ROHS and FCC certifications. We can offer all kinds of services, including PCB manufacturing and PCB assembly, sample orders and batch orders. For PCB assembly, utilizing 7 high-speed SMT PCBA lines from Yamaha and Sony, to meet our customers’ needs. Our extended services include PCB design &PCB Layout, hardware design engineering, firmware &software development, and personalization. ELE company is honored as an excellent supplier from any company all around the world. We deeply believe that our good service and experience will completely meet your needs. Integrality, value and innovation are the forces that drive our success.

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