What does ISDN (dual channel) represent?

ISDN (dual channel) indicates using both 64 kbit/s B channels of an ISDN Basic Rate Interface combined to provide roughly 128 kbit/s data throughput.

What is STS24 (signal) used for?

STS24 is a high-rate synchronous optical network signal used for carrier backbone, long-haul optical links, and aggregating multiple lower-rate circuits.

Why is the conversion between ISDN (dual channel) and STS24 not exact?

Because ISDN (dual channel) is a service-level throughput descriptor and STS24 includes overhead bytes, plus the difference in scale, conversions are approximations mainly for network planning.

How to Convert from ISDN (dual channel) to STS24 (signal)?

Learn how to convert data transfer rates from ISDN (dual channel) to STS24 (signal) with this detailed unit conversion guide. Understand use cases, conversion rates, and limitations for telecommunication networks.

ISDN (dual channel)

STS24 (signal)

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

ISDN (dual channel) to STS24 (signal) Conversion Table

ISDN (dual channel)	STS24 (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 STS24 (signal) Conversion Table
ISDN (dual channel)	STS24 (signal)

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What Is This Tool?

This unit converter translates data transfer rates from ISDN (dual channel), a telecommunication bonding configuration, to STS24 (signal), a high-capacity synchronous optical network signal used in backbone and metro networks.

How to Use This Tool?

Enter the value representing ISDN (dual channel) data rate
Select ISDN (dual channel) as the source unit
Choose STS24 (signal) as the target unit
Apply the conversion to obtain the equivalent STS24 (signal) rate
Interpret results in the context of network aggregation or backbone planning

Key Features

Converts ISDN (dual channel) data transfer rates to STS24 (signal) format
Browser-based tool for quick and easy calculations
Supports telecommunication industry-specific conversions
Utilizes standardized conversion rate without assumptions
Includes relevant use cases to guide application

Examples

1 ISDN (dual channel) equals approximately 0.0001028807 STS24 (signal)
10 ISDN (dual channel) correspond to about 0.001028807 STS24 (signal)

Common Use Cases

Small-office or home internet and file transfer with bonded ISDN channels
Remote LAN access or backup links combining two B channels for higher throughput
Carrier backbone and long-haul optical link capacity planning using STS24
Aggregating multiple lower-rate circuits into synchronous optical network signals
Metro network backhaul carrying aggregated Ethernet or legacy leased lines

Tips & Best Practices

Use the tool to plan network aggregation rather than instant data rates
Consider overhead bytes in STS24 framing when assessing usable payload
Understand ISDN (dual channel) as a service-level rate descriptor, not a physical SI unit
Apply conversion thoughtfully within telecommunications network design contexts

Limitations

ISDN (dual channel) is not an SI unit but a service-level data rate descriptor
STS24 includes SONET framing overhead reducing usable payload compared to nominal rate
Conversion is mainly relevant for planning network aggregation, not precise physical bandwidth
Large scale differences between kbit/s and Gbit/s limit direct instantaneous comparisons

Frequently Asked Questions

What does ISDN (dual channel) represent?: ISDN (dual channel) indicates using both 64 kbit/s B channels of an ISDN Basic Rate Interface combined to provide roughly 128 kbit/s data throughput.
What is STS24 (signal) used for?: STS24 is a high-rate synchronous optical network signal used for carrier backbone, long-haul optical links, and aggregating multiple lower-rate circuits.
Why is the conversion between ISDN (dual channel) and STS24 not exact?: Because ISDN (dual channel) is a service-level throughput descriptor and STS24 includes overhead bytes, plus the difference in scale, conversions are approximations mainly for network planning.

Key Terminology

ISDN (dual channel): A telecommunication data transfer rate where two 64 kbit/s bearer channels are bonded to provide approximately 128 kbit/s throughput.
STS24 (signal): A SONET synchronous transport signal formed by multiplexing 24 STS-1 channels with a nominal line rate of about 1.244 Gbit/s.
SONET: Synchronous Optical Network, a standardized digital communication protocol used to transmit multiple digital bit streams over optical fiber.

Quick Knowledge Check

What is the approximate data throughput of ISDN (dual channel)?

64 kbit/s

128 kbit/s

1.244 Gbit/s

What does STS24 (signal) represent in telecommunications?

A data transfer rate of 128 kbit/s

A multiplexed synchronous optical network signal

An ISDN bonding configuration

What is a key limitation when converting ISDN (dual channel) to STS24?

Exact physical bandwidth equivalence

Inclusion of SONET overhead in STS24

ISDN uses SI units

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