Chapter 12: Ethernet Radio

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Questions and Answers

What is the main reason for using point-to-point wireless digital links between two locations?

When it is difficult to use OFC/CAT cable or for administrative reasons (correct)

To provide a more reliable wireless link

To minimize the cost of OFC/CAT cable

To increase the throughput of the wireless link

What is required to maximize the performance of a wireless link?

Non-line of sight between the two locations

Near line of sight between the two locations

Line of sight between the two locations (correct)

No line of sight is required

At what frequency do point-to-point wireless links provide a more reliable wireless link?

2.4 GHz (correct)

400 MHz

5.8 GHz

900 MHz

In which frequency band do point-to-point Ethernet radio equipment typically operate?

2.4 or 5.8 GHz License Free Frequency Band Signup and view all the answers

What is the regulatory body that governs the transmitted power of point-to-point Ethernet radio equipment in India?

WPC (Wireless Planning & Coordination Wing of Ministry of Communication & Information Technology) Signup and view all the answers

What is the typical throughput of point-to-point Ethernet radio equipment?

From 25 Mbps to 750 Mbps Signup and view all the answers

What is the maximum range of point-to-point Ethernet radio equipment?

Up to 50 Kms or even more in some cases Signup and view all the answers

What type of signals can be carried by point-to-point Ethernet radio equipment?

Voice, data or video signals Signup and view all the answers

What is the format of the output signal of point-to-point Ethernet radio equipment?

Framed or unframed, synchronous or asynchronous Signup and view all the answers

What is the main advantage of using point-to-point wireless digital links over OFC/CAT cables?

Expediency and administrative convenience Signup and view all the answers

What is the purpose of an External Antenna in the link?

To receive and transmit data wirelessly Signup and view all the answers

What is the main advantage of using Ethernet Radio for T1/E1 leased-line replacement?

It is a more cost-effective solution Signup and view all the answers

What is the primary purpose of Link Locking in Ethernet Radio?

To enhance the security of the link Signup and view all the answers

What is the preferred method of Link Locking?

MAC Address-based authentication Signup and view all the answers

What is the difference between Point to Point and Point to Multi Point Ethernet Radio?

PtP is used for point-to-point connections, while PtMP is used for point-to-multipoint connections Signup and view all the answers

What is the role of the Application Software in the Ethernet Radio link?

To configure and manage the link Signup and view all the answers

What is the benefit of using two-way locking in Ethernet Radio?

It enhances the security of the link Signup and view all the answers

What is the purpose of the Indoor Unit in the Ethernet Radio link?

To connect to the Ethernet cable Signup and view all the answers

What is the primary application of Ethernet Radio in Indian Railways?

Building-to-building and campus connectivity Signup and view all the answers

What is a key component of the Ethernet Radio link?

All of the above Signup and view all the answers

Why is it recommended to provide antennas at a certain height in point-to-point wireless digital links?

To ensure line of sight between the two locations Signup and view all the answers

What is the typical frequency range of point-to-point Ethernet radio equipment?

2.4 GHz to 5.8 GHz Signup and view all the answers

What is the main advantage of using point-to-point wireless digital links in NLOS or NLOS conditions?

Reliable wireless link Signup and view all the answers

What determines the maximum permitted power level of point-to-point Ethernet radio equipment?

WPC regulations Signup and view all the answers

What type of signals can be carried by point-to-point Ethernet radio equipment?

Voice, data, or video signals Signup and view all the answers

What is the primary purpose of point-to-point wireless digital links between two locations?

All of the above Signup and view all the answers

What is the range of throughput that can be delivered by point-to-point Ethernet radio equipment?

25 Mbps to 750 Mbps Signup and view all the answers

What is the maximum range of point-to-point Ethernet radio equipment?

Up to 50 Kms or even more Signup and view all the answers

What determines the format of the output signal of point-to-point Ethernet radio equipment?

The requirements of the application Signup and view all the answers

Why is line of sight required for point-to-point wireless digital links?

To ensure a reliable wireless link Signup and view all the answers

What is the function of the CAT-5e (or better) UV Protected Outdoor Cable in the Ethernet Radio link?

To provide both data and power from Indoor Unit to Outdoor Unit Signup and view all the answers

What is the benefit of using Ethernet Radios for Indian Railways?

To provide a variety of communication needs including Building-to-building and campus connectivity Signup and view all the answers

What is the purpose of the Outdoor Unit in the Ethernet Radio link?

To transmit and receive data wirelessly Signup and view all the answers

What is the advantage of using two-way locking in Ethernet Radio?

To ensure complete security and prevent unauthorized access Signup and view all the answers

What is the role of the Application Software in the Ethernet Radio link?

To configure the Indoor Unit and Outdoor Unit Signup and view all the answers

What is the primary purpose of Link Locking in Ethernet Radio?

To prevent the Outdoor Unit from being stolen and used as a pirate link Signup and view all the answers

What type of Ethernet Radio is used for multiple building connectivity?

Point to Multi Point (PtMP) Signup and view all the answers

What is the preferred method of Link Locking in Ethernet Radio?

MAC Authentication Signup and view all the answers

What is integrated in some models of the Outdoor Unit?

The External Antenna Signup and view all the answers

What is the function of the Indoor Unit in the Ethernet Radio link?

To connect to the External Antenna Signup and view all the answers

What is the primary component of the Ethernet Radio link that provides both Data and Power?

CAT-5e (or better) UV Protected Outdoor Cable Signup and view all the answers

What type of connectivity can Ethernet Radios provide for Indian Railways?

All of the above Signup and view all the answers

What is the purpose of Link Locking in Ethernet Radio?

To prevent theft of Outdoor Units Signup and view all the answers

What type of Authentication is preferred for Link Locking?

MAC Authentication Signup and view all the answers

What is the benefit of using two-way locking in Ethernet Radio?

To ensure complete security Signup and view all the answers

What is the role of the Application Software in the Ethernet Radio link?

To configure and manage the link Signup and view all the answers

What type of Ethernet Radio can be used for multiple building connectivity?

Point to Multi Point (PtMP) Signup and view all the answers

What is integrated in some models of the Outdoor Unit?

External Antenna Signup and view all the answers

What is the primary application of Ethernet Radio in Indian Railways?

All of the above Signup and view all the answers

What is a key component of the Ethernet Radio link?

All of the above Signup and view all the answers

When is it difficult to use OFC/CAT cables between two locations?

When the sites are to be connected in an expeditious manner Signup and view all the answers

What is the typical frequency range of point-to-point Ethernet radio equipment?

2.4 GHz or 5.8 GHz License Free Frequency Band Signup and view all the answers

What determines the maximum permitted power level of point-to-point Ethernet radio equipment?

The frequency on which the system works Signup and view all the answers

What is the main advantage of using point-to-point wireless digital links over OFC/CAT cables?

They are easier to install Signup and view all the answers

What is the role of the antennas in point-to-point wireless digital links?

To provide a clear line of sight Signup and view all the answers

What is the range of throughput that can be delivered by point-to-point Ethernet radio equipment?

From 25 Mbps to 750 Mbps Signup and view all the answers

What type of signals can be carried by point-to-point Ethernet radio equipment?

Voice, data, or video signals Signup and view all the answers

What is the purpose of providing antennas at a certain height in point-to-point wireless digital links?

To provide a clear line of sight Signup and view all the answers

What is the benefit of using point-to-point wireless digital links in NLOS or NLOS conditions?

They can work reliably in near line of sight or non-line of sight conditions Signup and view all the answers

What regulates the transmitted power of point-to-point Ethernet radio equipment in India?

WPC (Wireless Planning & Coordination Wing of Ministry of Communication & Information Technology) Signup and view all the answers

What is the primary purpose of using Ethernet Radios in Indian Railways?

To provide building-to-building and campus connectivity Signup and view all the answers

What is the function of the CAT-5e (or better) UV Protected Outdoor Cable in the Ethernet Radio link?

To provide data transmission between the Indoor Unit and Outdoor Unit Signup and view all the answers

What type of Authentication is preferred for Link Locking?

MAC Authentication Signup and view all the answers

What is the advantage of using two-way locking in Ethernet Radio?

It provides complete security and prevents stolen Outdoor Units from being used as pirate links Signup and view all the answers

What type of Ethernet Radio is used for multiple building connectivity?

Point-to-Multi-Point (PtMP) Ethernet Radio Signup and view all the answers

What is integrated in some models of the Outdoor Unit?

The External Antenna Signup and view all the answers

What is the primary component of the Ethernet Radio link that provides both Data and Power?

The CAT-5e (or better) UV Protected Outdoor Cable Signup and view all the answers

What is the primary purpose of Link Locking in Ethernet Radio?

To prevent stolen Outdoor Units from being used as pirate links Signup and view all the answers

What is the role of the Application Software in the Ethernet Radio link?

To configure and manage the link Signup and view all the answers

What type of connectivity can Ethernet Radios provide for Indian Railways?

Building-to-building and campus connectivity, High-speed Internet access, T1/E1 leased-line replacement, and other types of connectivity Signup and view all the answers

What is the primary reason for using point-to-point wireless digital links in near line of sight (NLOS) or non-line of sight conditions?

To overcome the limitations of OFC/CAT cables Signup and view all the answers

What is the regulatory requirement for point-to-point Ethernet radio equipment in India?

To comply with WPC standards and regulations Signup and view all the answers

What is the typical range of point-to-point Ethernet radio equipment?

Up to 50 km Signup and view all the answers

What is the format of the output signal of point-to-point Ethernet radio equipment?

Framed or unframed, synchronous or asynchronous Signup and view all the answers

What is the primary advantage of using point-to-point wireless digital links over OFC/CAT cables?

Ease of deployment Signup and view all the answers

What is the maximum permitted power level of point-to-point Ethernet radio equipment?

Specified by WPC Signup and view all the answers

What is the primary purpose of providing antennas at a certain height in point-to-point wireless digital links?

To ensure line of sight between the two locations Signup and view all the answers

What is the typical frequency range of point-to-point Ethernet radio equipment?

2.4 GHz to 5.8 GHz Signup and view all the answers

What is the primary advantage of using point-to-point wireless digital links in NLOS or non-line of sight conditions?

Flexibility in deployment Signup and view all the answers

What is the primary purpose of point-to-point wireless digital links between two locations?

To connect locations where OFC/CAT cables are difficult to use Signup and view all the answers

Study Notes

Point-to-Point Wireless Digital Links

Point-to-point wireless digital links are used between two locations when OFC/CAT cable cannot be used or for expedited connections and backup purposes.
Line of sight is required for optimal performance, and antennas may need to be installed at a certain height.
Operations at 2.4 GHz provide a more reliable wireless link in line of sight conditions.

Point-to-Point Ethernet Radio Equipment

Point-to-point Ethernet radio equipment operates in the 2.4 or 5.8 GHz License Free Frequency Band.
Equipment must comply with WPC (Wireless Planning & Coordination Wing of Ministry of Communication & Information Technology) standards and regulations.
Transmitted power should not exceed maximum permitted power levels specified by WPC.

Performance and Capabilities

Ethernet radios deliver a throughput of 25 Mbps to 750 Mbps.
They can operate as short-range or long-range links, with distances up to 50 Kms or more.
Payload can be voice, data, or video signals and can carry any type of signaling as required.

Components and Configuration

Each side of the link consists of an Indoor Unit (IDU), Outdoor Unit (ODU), External Antenna, and a CAT-5e (or better) UV Protected Outdoor Cable.
In some models, the outdoor unit and antenna are integrated.
Application software is required for configuring and managing the link.

Communication Needs

Ethernet radios can meet various communication needs of Indian Railways, including:
- Building-to-building and campus connectivity
- High-speed Internet access
- T1/E1 leased-line replacement
- Traffic backhaul
- Video surveillance connectivity
- Voice-over-IP and multimedia communications

Ethernet Radio Types

Ethernet radios can be Point-to-Point (PtP) or Point-to-Multi Point (PtMP) type.

Security Measures

Link lock can be used to pair Outdoor Units of a Point-to-Point Wireless Link to prevent unauthorized use.
Link lock should be based on MAC Authentication and activated on site.
Two-way locking is recommended to ensure complete security.

Point-to-Point Wireless Digital Links

Point-to-point wireless digital links are used between two locations when OFC/CAT cable cannot be used or for expedited connections and backup purposes.
Line of sight is required for optimal performance, and antennas may need to be installed at a certain height.
Operations at 2.4 GHz provide a more reliable wireless link in line of sight conditions.

Point-to-Point Ethernet Radio Equipment

Point-to-point Ethernet radio equipment operates in the 2.4 or 5.8 GHz License Free Frequency Band.
Equipment must comply with WPC (Wireless Planning & Coordination Wing of Ministry of Communication & Information Technology) standards and regulations.
Transmitted power should not exceed maximum permitted power levels specified by WPC.

Performance and Capabilities

Ethernet radios deliver a throughput of 25 Mbps to 750 Mbps.
They can operate as short-range or long-range links, with distances up to 50 Kms or more.
Payload can be voice, data, or video signals and can carry any type of signaling as required.

Components and Configuration

Each side of the link consists of an Indoor Unit (IDU), Outdoor Unit (ODU), External Antenna, and a CAT-5e (or better) UV Protected Outdoor Cable.
In some models, the outdoor unit and antenna are integrated.
Application software is required for configuring and managing the link.

Communication Needs

Ethernet radios can meet various communication needs of Indian Railways, including:
- Building-to-building and campus connectivity
- High-speed Internet access
- T1/E1 leased-line replacement
- Traffic backhaul
- Video surveillance connectivity
- Voice-over-IP and multimedia communications

Ethernet Radio Types

Ethernet radios can be Point-to-Point (PtP) or Point-to-Multi Point (PtMP) type.

Security Measures

Link lock can be used to pair Outdoor Units of a Point-to-Point Wireless Link to prevent unauthorized use.
Link lock should be based on MAC Authentication and activated on site.
Two-way locking is recommended to ensure complete security.

Point-to-Point Wireless Digital Links

Point-to-point wireless digital links are used between two locations when OFC/CAT cable cannot be used or for expedited connections and backup purposes.
Line of sight is required for optimal performance, and antennas may need to be installed at a certain height.
Operations at 2.4 GHz provide a more reliable wireless link in line of sight conditions.

Point-to-Point Ethernet Radio Equipment

Point-to-point Ethernet radio equipment operates in the 2.4 or 5.8 GHz License Free Frequency Band.
Equipment must comply with WPC (Wireless Planning & Coordination Wing of Ministry of Communication & Information Technology) standards and regulations.
Transmitted power should not exceed maximum permitted power levels specified by WPC.

Performance and Capabilities

Ethernet radios deliver a throughput of 25 Mbps to 750 Mbps.
They can operate as short-range or long-range links, with distances up to 50 Kms or more.
Payload can be voice, data, or video signals and can carry any type of signaling as required.

Components and Configuration

Each side of the link consists of an Indoor Unit (IDU), Outdoor Unit (ODU), External Antenna, and a CAT-5e (or better) UV Protected Outdoor Cable.
In some models, the outdoor unit and antenna are integrated.
Application software is required for configuring and managing the link.

Communication Needs

Ethernet radios can meet various communication needs of Indian Railways, including:
- Building-to-building and campus connectivity
- High-speed Internet access
- T1/E1 leased-line replacement
- Traffic backhaul
- Video surveillance connectivity
- Voice-over-IP and multimedia communications

Ethernet Radio Types

Ethernet radios can be Point-to-Point (PtP) or Point-to-Multi Point (PtMP) type.

Security Measures

Link lock can be used to pair Outdoor Units of a Point-to-Point Wireless Link to prevent unauthorized use.
Link lock should be based on MAC Authentication and activated on site.
Two-way locking is recommended to ensure complete security.

Point-to-Point Wireless Digital Links

Point-to-point wireless digital links are used between two locations when OFC/CAT cable cannot be used or for expedited connections and backup purposes.
Line of sight is required for optimal performance, and antennas may need to be installed at a certain height.
Operations at 2.4 GHz provide a more reliable wireless link in line of sight conditions.

Point-to-Point Ethernet Radio Equipment

Point-to-point Ethernet radio equipment operates in the 2.4 or 5.8 GHz License Free Frequency Band.
Equipment must comply with WPC (Wireless Planning & Coordination Wing of Ministry of Communication & Information Technology) standards and regulations.
Transmitted power should not exceed maximum permitted power levels specified by WPC.

Performance and Capabilities

Ethernet radios deliver a throughput of 25 Mbps to 750 Mbps.
They can operate as short-range or long-range links, with distances up to 50 Kms or more.
Payload can be voice, data, or video signals and can carry any type of signaling as required.

Components and Configuration

Each side of the link consists of an Indoor Unit (IDU), Outdoor Unit (ODU), External Antenna, and a CAT-5e (or better) UV Protected Outdoor Cable.
In some models, the outdoor unit and antenna are integrated.
Application software is required for configuring and managing the link.

Communication Needs

Ethernet radios can meet various communication needs of Indian Railways, including:
- Building-to-building and campus connectivity
- High-speed Internet access
- T1/E1 leased-line replacement
- Traffic backhaul
- Video surveillance connectivity
- Voice-over-IP and multimedia communications

Ethernet Radio Types

Ethernet radios can be Point-to-Point (PtP) or Point-to-Multi Point (PtMP) type.

Security Measures

Link lock can be used to pair Outdoor Units of a Point-to-Point Wireless Link to prevent unauthorized use.
Link lock should be based on MAC Authentication and activated on site.
Two-way locking is recommended to ensure complete security.

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Description

This quiz covers the use of point-to-point wireless digital links in situations where OFC/CAT cables cannot be used. It also discusses the importance of line of sight for maximizing wireless link performance.