What is IDE (DMA mode 2)?

IDE (DMA mode 2) is a legacy Parallel ATA data transfer mode allowing direct memory access with minimal CPU use, offering higher throughput than PIO modes.

What does STS3 (payload) measure?

STS3 (payload) represents the user-data portion of a SONET STS-3 frame, indicating the actual bytes available for client data after framing and overhead.

Why convert IDE (DMA mode 2) to STS3 (payload)?

Converting these units helps compare legacy storage device transfer rates against telecom transport payload capacities for network planning and benchmarking.

How to Convert from IDE (DMA mode 2) to STS3 (payload)?

Convert data transfer rates from IDE (DMA mode 2) to STS3 (payload) to compare legacy PATA/IDE device throughput with SONET transport capacities in telecom networks.

IDE (DMA mode 2)

STS3 (payload)

Please check your input. It must be a valid numeric value.

IDE (DMA mode 2) to STS3 (payload) Conversion Table

IDE (DMA mode 2)	STS3 (payload)

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

IDE (DMA mode 2) to STS3 (payload) Conversion Table
IDE (DMA mode 2)	STS3 (payload)

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What Is This Tool?

This converter transforms data transfer measurements from IDE (DMA mode 2) used in legacy PATA/IDE devices to STS3 (payload), the usable data portion of a SONET STS-3 transport signal. It aids in relating older device transfer rates to modern telecom payload capacities for performance assessment and network planning.

How to Use This Tool?

Enter the value in IDE (DMA mode 2) units you wish to convert.
Select IDE (DMA mode 2) as the source unit and STS3 (payload) as the target unit.
Click the convert button to get the equivalent value in STS3 (payload).
Interpret the result as the corresponding transport channel payload capacity in SONET STS-3 format.

Key Features

Supports conversion between IDE (DMA mode 2) and STS3 (payload) units.
Facilitates comparison of legacy storage data rates to telecom payloads.
Provides a clear conversion factor to relate two different transport standards.
Assists with benchmarking legacy device throughput against SONET capacities.

Examples

Convert 5 IDE (DMA mode 2) units: 5 × 0.883354619 = 4.416773095 STS3 (payload).
Convert 10 IDE (DMA mode 2) units: 10 × 0.883354619 = 8.83354619 STS3 (payload).

Common Use Cases

Comparing legacy PATA/IDE storage transfer speeds with telecom network payload capacities.
Planning and provisioning carrier backbone links using OC-3 circuits in telecom environments.
Benchmarking storage device throughput against SONET payload channel capacities.
Billing and service level agreement measurements for leased line transportation.

Tips & Best Practices

Ensure measurement contexts are consistent when using this conversion due to legacy standards.
Interpret results as theoretical capacities rather than real-time throughput rates.
Consider protocol overheads and framing differences when comparing values.
Use this tool primarily for comparative analysis across legacy and telecom network metrics.

Limitations

IDE (DMA mode 2) is a legacy interface standard with lower throughput than modern options.
STS3 (payload) values exclude framing and overhead bytes, affecting direct comparisons.
Conversion results represent theoretical capacities and may not reflect actual data rates.

Frequently Asked Questions

What is IDE (DMA mode 2)?: IDE (DMA mode 2) is a legacy Parallel ATA data transfer mode allowing direct memory access with minimal CPU use, offering higher throughput than PIO modes.
What does STS3 (payload) measure?: STS3 (payload) represents the user-data portion of a SONET STS-3 frame, indicating the actual bytes available for client data after framing and overhead.
Why convert IDE (DMA mode 2) to STS3 (payload)?: Converting these units helps compare legacy storage device transfer rates against telecom transport payload capacities for network planning and benchmarking.

Key Terminology

IDE (DMA mode 2): A legacy Parallel ATA data transfer mode allowing direct memory transfers with reduced CPU involvement.
STS3 (payload): The usable user-data part of a SONET STS-3 frame after removing framing and overhead.
Conversion Rate: The fixed factor used to translate units between IDE (DMA mode 2) and STS3 (payload), specifically 1 IDE (DMA mode 2) equals 0.883354619 STS3 (payload).

Quick Knowledge Check

What does IDE (DMA mode 2) primarily improve compared to PIO modes?

Higher CPU usage

Lower CPU overhead and higher data throughput

Increased framing bytes

STS3 (payload) represents what part of an STS-3 frame?

The framing and overhead bytes

The user-data portion available for client traffic

The total line rate including overhead

Why should one consider overhead and framing in this conversion?

Because IDE (DMA mode 2) includes overhead bytes

Because STS3 (payload) excludes framing and overhead bytes

Because overhead does not affect throughput

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