What does ISDN (dual channel) measure?

ISDN (dual channel) refers to a configuration using two 64 kbit/s B channels combined to provide approximately 128 kbit/s data throughput, describing a service-level telecommunication data rate.

What is STS3c (signal)?

STS3c (signal) is a SONET electrical transport signal representing a concatenated payload of three STS-1 channels, offering a gross data rate of 155.52 Mbit/s for high-bandwidth transmission.

Why are converted STS3c values so small compared to ISDN?

Because ISDN (dual channel) throughput is much lower than STS3c, conversion yields very small fractional STS3c values reflecting the large difference in data rates.

How to Convert from ISDN (dual channel) to STS3c (signal)?

Learn how to convert data transfer rates from ISDN (dual channel) to STS3c (signal) units with this easy-to-use online converter. Understand their definitions, use cases, and conversion approach for telecom applications.

ISDN (dual channel)

STS3c (signal)

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

ISDN (dual channel) to STS3c (signal) Conversion Table

ISDN (dual channel)	STS3c (signal)

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.

ISDN (dual channel) to STS3c (signal) Conversion Table
ISDN (dual channel)	STS3c (signal)

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What Is This Tool?

This converter transforms data transfer rates from ISDN (dual channel), a telecommunication service-level data rate descriptor, to STS3c (signal), a high-bandwidth SONET electrical transport signal. It helps bridge measurement scales between low-rate ISDN services and higher-capacity SONET backbone signals.

How to Use This Tool?

Enter the value in ISDN (dual channel) you want to convert
Select ISDN (dual channel) as the source unit and STS3c (signal) as the target unit
Click the convert button to see the corresponding STS3c (signal) equivalent
Use the results for network planning or capacity management purposes

Key Features

Converts data transfer values from ISDN (dual channel) to STS3c (signal)
Supports telecommunications and network engineering applications
Browser-based and easy to use without requiring installation
Helps compare low-bandwidth ISDN composite rates with SONET backbone capacities
Provides standardized rate conversions based on defined conversion factors

Examples

Converting 10 ISDN (dual channel) results in 0.008230453 STS3c (signal)
Converting 100 ISDN (dual channel) results in 0.08230453 STS3c (signal)

Common Use Cases

Comparing and aggregating low-bandwidth ISDN composite data rates with SONET backbone channels
Provisioning leased lines or backbone circuits in telecom networks
Interconnecting metro or backhaul SONET equipment for traffic aggregation
Remote LAN access or backup link bandwidth planning using ISDN bonded channels

Tips & Best Practices

Verify the network context for correct application of service-level (ISDN) vs. signal-level (STS3c) units
Use conversions to assist in capacity management but avoid relying on results for precise timing or signal integrity analysis
Recognize the conversion reflects large throughput differences and typically yields very small STS3c values
Apply this tool within telecommunications and SONET-based network architecture planning

Limitations

ISDN (dual channel) is not an SI unit but a service-level descriptor, so conversions are approximate by nature
Significant throughput difference between ISDN and STS3c means output values are very small fractions
Not suited for detailed signal layer analyses since STS3c relates to physical signal transport unlike ISDN's data rate definition

Frequently Asked Questions

What does ISDN (dual channel) measure?: ISDN (dual channel) refers to a configuration using two 64 kbit/s B channels combined to provide approximately 128 kbit/s data throughput, describing a service-level telecommunication data rate.
What is STS3c (signal)?: STS3c (signal) is a SONET electrical transport signal representing a concatenated payload of three STS-1 channels, offering a gross data rate of 155.52 Mbit/s for high-bandwidth transmission.
Why are converted STS3c values so small compared to ISDN?: Because ISDN (dual channel) throughput is much lower than STS3c, conversion yields very small fractional STS3c values reflecting the large difference in data rates.

Key Terminology

ISDN (dual channel): A telecommunication data rate descriptor using two 64 kbit/s B channels bonded in parallel to provide about 128 kbit/s total throughput.
STS3c (signal): A SONET electrical transport signal consisting of three concatenated STS-1 channels, with a gross data rate of 155.52 Mbit/s used for high-bandwidth transport.
Channel Bonding: The process of combining multiple channels to increase data throughput, such as bonding two ISDN B channels to double bandwidth.

Quick Knowledge Check

What data rate does ISDN (dual channel) approximately provide?

64 kbit/s

128 kbit/s

155.52 Mbit/s

STS3c (signal) represents what kind of network signal?

A single B channel of ISDN

A concatenated payload of three STS-1 channels in SONET

An Ethernet 10G signal

Why is conversion from ISDN (dual channel) to STS3c approximate?

Because ISDN is a physical signal layer parameter

Because ISDN is not an SI unit but a service-level descriptor

Because STS3c data rate is lower than ISDN

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