What does STS3 (payload) represent?

STS3 (payload) denotes the user-data portion of a SONET STS-3 frame that carries client traffic excluding framing and overhead bytes.

How is ISDN (dual channel) defined?

ISDN (dual channel) is the combined throughput of two bonded 64 kbit/s bearer channels from an ISDN Basic Rate Interface, totaling about 128 kbit/s.

Why convert STS3 (payload) to ISDN (dual channel)?

This conversion helps relate large backbone transport rates to smaller, service-level ISDN data channels for network planning, billing, and service mapping.

Convert STS3 (payload) to ISDN (dual channel) Online

Easily convert data transfer rates from STS3 (payload) to ISDN (dual channel). Understand the relationship between high-capacity SONET payloads and ISDN dual channel throughput for telecom planning and billing.

STS3 (payload)

ISDN (dual channel)

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

STS3 (payload) to ISDN (dual channel) Conversion Table

STS3 (payload)	ISDN (dual channel)

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.

STS3 (payload) to ISDN (dual channel) Conversion Table
STS3 (payload)	ISDN (dual channel)

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What Is This Tool?

This converter allows you to translate data transfer rates from STS3 (payload), the usable data portion within an STS-3 SONET frame, into ISDN (dual channel) units, which represent two bonded 64 kbit/s ISDN bearer channels. It helps relate large SONET transport capacities to smaller ISDN service-level channels.

How to Use This Tool?

Enter a value in STS3 (payload) representing your payload data rate.
Select STS3 (payload) as the source unit and ISDN (dual channel) as the target unit.
Click the convert button to view the equivalent data rate in ISDN (dual channel).

Key Features

Converts STS3 (payload) units to ISDN (dual channel) data rates based on standardized telecom measures.
Supports network planning and billing by bridging high-capacity SONET and ISDN channel rates.
Provides examples for easy understanding of unit equivalencies.
Browser-based and simple to use without any installations.

Examples

2 STS3 (payload) equals 2349 ISDN (dual channel).
0.5 STS3 (payload) equals 587.25 ISDN (dual channel).

Common Use Cases

Provisioning and capacity planning for carrier backbone networks using OC‑3 circuits.
Converting large SONET payload transport rates into smaller ISDN dual channel equivalents for billing and SLA measurements.
Supporting remote LAN access or backup links by understanding equivalent ISDN data channels.
Translating between legacy SONET data capacities and service-level ISDN data throughput.

Tips & Best Practices

Use the conversion to bridge traffic planning between high-capacity SONET and low-rate ISDN channels.
Consider the service-level nature of ISDN dual channels when mapping data rates.
Be aware of overhead and framing differences that may impact exact data throughput comparisons.
Validate conversions within the context of your specific network and service configurations.

Limitations

ISDN (dual channel) reflects a service-level data rate, not an exact SI unit.
Conversion does not account for protocol overhead or signaling differences between SONET payload and ISDN.
Assumes full utilization of the STS3 payload capacity without real-world overhead.
Practical data rates may vary due to framing and network conditions.

Frequently Asked Questions

What does STS3 (payload) represent?: STS3 (payload) denotes the user-data portion of a SONET STS-3 frame that carries client traffic excluding framing and overhead bytes.
How is ISDN (dual channel) defined?: ISDN (dual channel) is the combined throughput of two bonded 64 kbit/s bearer channels from an ISDN Basic Rate Interface, totaling about 128 kbit/s.
Why convert STS3 (payload) to ISDN (dual channel)?: This conversion helps relate large backbone transport rates to smaller, service-level ISDN data channels for network planning, billing, and service mapping.

Key Terminology

STS3 (payload): The user-data portion within an STS-3 SONET frame available for carrying client traffic after accounting for overhead.
ISDN (dual channel): A combined data transfer rate representing two bonded 64 kbit/s bearer channels in an ISDN Basic Rate Interface.
SONET: A standardized digital communication protocol used to transmit multiple digital bit streams over optical fiber.

Quick Knowledge Check

What is the STS3 (payload) unit used for?

Measuring voice channel capacity

Indicating user-data capacity in a SONET STS-3 frame

Representing ISDN line speed

What does ISDN (dual channel) combine?

Two 64 kbit/s bearer channels bonded together

Three separate SONET payloads

A single 155.52 Mbit/s stream

What should users consider when converting STS3 (payload) to ISDN (dual channel)?

That ISDN units are exact SI measurements

That overhead and framing differences can affect throughput

That ISDN has higher capacity than STS3

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