Podcast
Questions and Answers
What is required to maximize the performance of a point-to-point wireless link?
What is required to maximize the performance of a point-to-point wireless link?
- A licensed frequency band
- Line of sight between locations (correct)
- An elevated outdoor unit
- A long range cable for connectivity
In which frequency band do point-to-point Ethernet radios typically operate?
In which frequency band do point-to-point Ethernet radios typically operate?
- 3.5 GHz
- 4.9 GHz
- 2.4 and 5.8 GHz (correct)
- 1.2 GHz
Which of the following components is NOT typically included in each side of a point-to-point Ethernet radio link?
Which of the following components is NOT typically included in each side of a point-to-point Ethernet radio link?
- Outdoor Unit (ODU)
- Fiber optic cable (correct)
- External Antenna
- Indoor Unit (IDU)
What is the maximum permitted range for some point-to-point Ethernet radio links?
What is the maximum permitted range for some point-to-point Ethernet radio links?
Which type of signaling can a point-to-point Ethernet radio link carry?
Which type of signaling can a point-to-point Ethernet radio link carry?
What role does the Application Software play in a point-to-point Ethernet radio setup?
What role does the Application Software play in a point-to-point Ethernet radio setup?
What type of links can the Ethernet radios be configured as?
What type of links can the Ethernet radios be configured as?
Which of the following is an example of a communication need fulfilled by Ethernet radios in Indian Railways?
Which of the following is an example of a communication need fulfilled by Ethernet radios in Indian Railways?
Flashcards
Point-to-Point Wireless Link
Point-to-Point Wireless Link
A type of wireless digital link that connects two locations directly. It's used when cables are impractical or a quick setup is needed.
Line of Sight (LOS)
Line of Sight (LOS)
Ensures strong signal quality in wireless links by minimizing obstructions. Straight line between the antennas.
Near Line of Sight (NLOS) or Non-Line of Sight (NLOS)
Near Line of Sight (NLOS) or Non-Line of Sight (NLOS)
Wireless links that operate in frequencies like 900 MHz or UHF, allowing reliable connections even with obstacles.
Indoor Unit (IDU)
Indoor Unit (IDU)
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Outdoor Unit (ODU)
Outdoor Unit (ODU)
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Outdoor Cable (CAT-5e)
Outdoor Cable (CAT-5e)
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Application Software
Application Software
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Point-to-Multipoint (PtMP)
Point-to-Multipoint (PtMP)
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Study Notes
Ethernet Radio
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Point-to-point wireless links are used when fiber optic or cable connections are challenging or when quick connections are needed.
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Line-of-sight (LOS) is optimal for 2.4 GHz wireless links. Near-line-of-sight (NLOS) and non-line-of-sight (NLOS) connections are possible at different frequencies.
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Wireless links operate in 2.4 GHz or 5.8 GHz frequency bands, adhering to WPC (Wireless Planning & Coordination Wing) regulations.
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Transmitted power levels are limited by WPC's specifications, depending on frequency.
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Throughput ranges from 25 Mbps to 750 Mbps, with potential to cover distances exceeding 50 km.
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These links support various data types (voice, data, video).
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Each link comprises an indoor unit (IDU), outdoor unit (ODU), external antenna, and a CAT-5e cable.
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Integrated outdoor unit/antenna models are available.
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Software for configuration and management is crucial.
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Ethernet Radios can be used for diverse applications: building connectivity, high-speed internet access, replacing leased lines, video surveillance, voice over IP, and multimedia.
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Point-to-point or point-to-multipoint configurations exist.
Security Considerations
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Wireless links are vulnerable and security measures may include:
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Linking outdoor units to prevent unauthorized use.
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MAC Authentication is recommended to secure the links.
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Two-way locking for increased security is preferred.
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Encryption (IEEE 802.11i/ FIPS-197) is crucial for data security.
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A stable power supply is needed to ensure uninterrupted operation of the Ethernet radio system.
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Description
Test your knowledge on Ethernet Radio technology and its applications in point-to-point wireless communication. This quiz covers frequency bands, throughput, and equipment specifications essential for establishing reliable connections. Ideal for those interested in telecommunications and networking.
