What is STM-1 (signal)?

STM-1 (signal) is the basic transmission unit of SDH networks, carrying data at 155.52 Mbit/s and serving as the foundation for higher-rate SDH signals.

What does OC768 represent?

OC768 is a high-capacity SONET optical carrier rate with a line speed near 39.8 Gbit/s, used for carrier and national backbone links.

Why convert STM-1 to OC768?

Converting STM-1 to OC768 helps scale standard SDH line rates to very high-capacity SONET levels for backbone network design and traffic aggregation.

How to Convert from STM-1 (signal) to OC768?

Learn how to convert data transfer rates from STM-1 (signal), the fundamental SDH unit, to OC768, a high-capacity SONET optical carrier level, essential for telecom backbone network scaling and planning.

STM-1 (signal)

OC768

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

STM-1 (signal) to OC768 Conversion Table

STM-1 (signal)	OC768

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.

STM-1 (signal) to OC768 Conversion Table
STM-1 (signal)	OC768

Explore More Data Transfer Units Converter

What Is This Tool?

This tool helps convert data transfer values from STM-1 (signal), a standard SDH unit with a bit rate of 155.52 Mbit/s, to OC768, a high-speed optical carrier used in SONET systems with speeds around 39.8 Gbit/s. It is ideal for telecom engineers and network planners working with fiber-optic backbone infrastructure.

How to Use This Tool?

Enter the value in STM-1 (signal) units you want to convert.
Select STM-1 (signal) as the input and OC768 as the output unit.
Click the convert button to get the equivalent OC768 value based on the conversion rate.

Key Features

Converts between STM-1 (signal) and OC768 data rates accurately using a defined conversion factor.
Browser-based and simple user interface designed for ease of use.
Supports telecom network design by facilitating unit scaling from standard SDH to high-capacity SONET levels.

Examples

Converting 10 STM-1 (signal) yields 0.0390625 OC768.
256 STM-1 (signal) converts exactly to 1 OC768.

Common Use Cases

Planning telecom backbone links at 155.52 Mbit/s and scaling traffic to high-capacity OC768 levels.
Aggregating lower-rate circuits over SDH and interfacing with SONET systems.
Designing fiber-optic backbone for ISPs and carriers handling large client traffic volumes.

Tips & Best Practices

Use the tool for high-level network capacity planning and aggregation scenarios.
Cross-verify conversions when integrating SDH and SONET hierarchical levels.
Be mindful of network overhead and practical deployment factors beyond basic conversions.

Limitations

Conversion assumes ideal multiplexing without accounting for overhead or framing variations.
OC768 deployments are more complex and costly than STM-1 systems.
Practical network factors such as signal loss and protocol overhead may affect effective rates.

Frequently Asked Questions

What is STM-1 (signal)?: STM-1 (signal) is the basic transmission unit of SDH networks, carrying data at 155.52 Mbit/s and serving as the foundation for higher-rate SDH signals.
What does OC768 represent?: OC768 is a high-capacity SONET optical carrier rate with a line speed near 39.8 Gbit/s, used for carrier and national backbone links.
Why convert STM-1 to OC768?: Converting STM-1 to OC768 helps scale standard SDH line rates to very high-capacity SONET levels for backbone network design and traffic aggregation.

Key Terminology

STM-1 (signal): The basic transmission unit of SDH that carries a synchronous framed signal at 155.52 Mbit/s.
OC768: A SONET optical carrier with line speed around 39.8 Gbit/s used for high-capacity backbone links.
Synchronous Digital Hierarchy (SDH): A network transmission standard using STM units like STM-1 for telecom data transfer.
SONET: Synchronous Optical Network, a standard for optical telecommunications used alongside or interoperably with SDH.

Quick Knowledge Check

What is the bit rate of STM-1 (signal)?

39.8 Gbit/s

155.52 Mbit/s

51.84 Mbps

What is the approximate speed of OC768?

155.52 Mbit/s

39.8 Gbit/s

1 Gbit/s

For which purpose is STM-1 to OC768 conversion commonly used?

Converting meter units

Scaling SDH rates to backbone levels

Calculating power consumption

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