What does SCSI (Async) mean in data transfer?

SCSI (Async) denotes asynchronous data transfer in the SCSI protocol, where data exchange relies on request/acknowledge handshakes without a shared clock.

What is a Virtual Tributary 2 (payload)?

A Virtual Tributary 2 payload is a container used in SONET/SDH networks sized to carry a 2.048 Mb/s PDH/E1 channel for transporting legacy time-division multiplexed signals.

How to Convert from SCSI (Async) to Virtual Tributary 2 (payload)?

Q: Why convert from SCSI (Async) to Virtual Tributary 2 (payload)?

Converting helps translate legacy asynchronous SCSI throughput into equivalent SONET/SDH payload units for benchmarking, circuit emulation, and transport over modern optical networks.

Learn how to convert asynchronous SCSI data transfer rates to Virtual Tributary 2 payload units used in SONET/SDH networks with this easy-to-use online converter.

SCSI (Async)

Virtual Tributary 2 (payload)

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

SCSI (Async) to Virtual Tributary 2 (payload) Conversion Table

SCSI (Async)	Virtual Tributary 2 (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.

SCSI (Async) to Virtual Tributary 2 (payload) Conversion Table
SCSI (Async)	Virtual Tributary 2 (payload)

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What Is This Tool?

This tool converts data transfer values from the asynchronous mode of the SCSI protocol to Virtual Tributary 2 (payload) units used in synchronous optical networks. It helps translate the asynchronous SCSI performance into equivalent SONET/SDH payload units for effective benchmarking and transport.

How to Use This Tool?

Enter the value in SCSI (Async) units that you want to convert
Select the target unit as Virtual Tributary 2 (payload)
Click the convert button to see the equivalent payload value
Use the result for benchmarking, circuit emulation, or provisioning
Repeat as needed for different values and scenarios

Key Features

Converts SCSI (Async) data transfer units to Virtual Tributary 2 (payload) values
Supports benchmarking and legacy device performance analysis
Useful for telecommunications and embedded systems integration
Browser-based and easy to use without any software installation
Provides conversion based on recognized throughput relations

Examples

1 SCSI (Async) equals 5.859375 Virtual Tributary 2 (payload)
10 SCSI (Async) equals 58.59375 Virtual Tributary 2 (payload)

Common Use Cases

Benchmarking throughput of legacy SCSI devices operating asynchronously
Troubleshooting timing and handshake issues on the SCSI bus
Configuring retrocomputing systems using asynchronous SCSI connections
Emulating circuits and transporting legacy TDM services over SONET/SDH
Provisioning granular low-rate channels within high-capacity optical networks

Tips & Best Practices

Verify the mode of SCSI operation before conversion to ensure accuracy
Use the conversion for benchmarking and provisioning rather than exact timing
Consider network conditions and protocol overhead in interpretation
Apply conversions primarily for integration with synchronous optical network equipment
Cross-check results when troubleshooting device or network performance issues

Limitations

Conversion is based on throughput assumptions and may not reflect all protocol overhead
Real SCSI (Async) transfer rates can vary due to device timing and bus arbitration
Mapping to Virtual Tributary 2 payloads may differ under various network conditions

Frequently Asked Questions

What does SCSI (Async) mean in data transfer?: SCSI (Async) denotes asynchronous data transfer in the SCSI protocol, where data exchange relies on request/acknowledge handshakes without a shared clock.
What is a Virtual Tributary 2 (payload)?: A Virtual Tributary 2 payload is a container used in SONET/SDH networks sized to carry a 2.048 Mb/s PDH/E1 channel for transporting legacy time-division multiplexed signals.
Why convert from SCSI (Async) to Virtual Tributary 2 (payload)?: Converting helps translate legacy asynchronous SCSI throughput into equivalent SONET/SDH payload units for benchmarking, circuit emulation, and transport over modern optical networks.

Key Terminology

SCSI (Async): An asynchronous data transfer mode of the Small Computer System Interface protocol using request/acknowledge handshakes without a shared clock.
Virtual Tributary 2 (VT2) Payload: A SONET/SDH container sized to carry a 2.048 Mb/s PDH/E1 channel, enabling transport of legacy TDM circuits over synchronous optical networks.
Throughput: The effective data transfer rate achieved, which for SCSI (Async) depends on device timing and bus arbitration.

Quick Knowledge Check

What type of data transfer does SCSI (Async) describe?

Synchronous data transfer with a shared clock

Asynchronous transfer using request/acknowledge handshakes

Optical multiplexing of high-capacity links

What is the purpose of a Virtual Tributary 2 payload in SONET/SDH?

To carry a 2.048 Mb/s PDH/E1 channel for legacy TDM signals

To synchronize asynchronous SCSI devices

To provide a shared clock for bus arbitration

Why might the conversion between SCSI (Async) and Virtual Tributary 2 payload vary in practice?

Because of differences in device response times and protocol overhead

Because the units represent the same data format

Because SCSI (Async) always matches the SONET payload exactly

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