What Is This Tool?
This online converter helps translate data transfer values from STS1 (payload), a SONET optical transport data rate, to SCSI (Fast Ultra), a parallel SCSI signalling mode for storage interfaces. It supports capacity planning and interoperability between telecommunications and storage technologies.
How to Use This Tool?
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Enter the amount in STS1 (payload) data transfer units.
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Select STS1 (payload) as the source unit.
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Choose SCSI (Fast Ultra) as the target unit.
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Click convert to see the equivalent value in SCSI (Fast Ultra).
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Use the results for planning or integration of telecommunications and storage components.
Key Features
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Converts data transfer units between STS1 (payload) and SCSI (Fast Ultra).
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Supports users managing SONET circuits and SCSI storage systems.
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Browser-based tool requiring no installation.
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Facilitates capacity planning and data rate translation.
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Provides example conversion calculations for easy understanding.
Examples
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Convert 2 STS1 (payload) to get 0.61875 SCSI (Fast Ultra).
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Convert 10 STS1 (payload) to get 3.09375 SCSI (Fast Ultra).
Common Use Cases
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Provisioning OC-1/STS-1 circuits on carrier backbones to support DS3 or multiple DS1 channels.
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Capacity planning for SONET rings based on available payload throughput.
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Mapping tributary signals like ATM cells or Ethernet frames into the STS-1 payload.
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Connecting high-performance hard disk arrays and RAID controllers using SCSI (Fast Ultra).
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Attaching tape drives and robotic tape libraries for backup and storage.
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Linking legacy peripherals such as optical jukeboxes or video capture devices via SCSI.
Tips & Best Practices
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Verify unit selections carefully before converting to ensure accuracy.
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Use the conversion results for high-level capacity planning rather than precise throughput measurements.
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Consider protocol overhead and framing differences when interpreting data rates.
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Integrate this tool as part of a broader network and storage design workflow.
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Understand device compatibility constraints between SONET and SCSI interfaces.
Limitations
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Conversion reflects raw data rates and does not include latency or error correction effects.
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Protocol overhead and framing differences may impact usable throughput.
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Direct mapping between SONET payloads and SCSI interfaces might face compatibility issues.
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Results should be interpreted as approximations for planning purposes.
Frequently Asked Questions
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What does STS1 (payload) represent in data transfer?
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STS1 (payload) is the user-data capacity inside an STS-1 frame in SONET, with a synchronous payload envelope capacity of 50.112 Mbps.
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What devices use SCSI (Fast Ultra)?
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SCSI (Fast Ultra) is used in high-performance hard disk arrays, RAID controllers, tape drives, and legacy high-bandwidth peripherals.
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Can I directly compare STS1 (payload) and SCSI (Fast Ultra) speeds?
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The tool converts raw data rates, but actual throughput can be affected by protocol overhead, latency, and compatibility constraints.
Key Terminology
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STS1 (payload)
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The user-data capacity inside an STS-1 frame in SONET with a usable synchronous payload envelope capacity of 50.112 Mbps.
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SCSI (Fast Ultra)
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Parallel SCSI signalling modes combining Fast and Ultra extensions to improve throughput and reduce latency, used for storage device connections.
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Conversion Rate
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The factor used to translate data transfer units from STS1 (payload) to SCSI (Fast Ultra), specifically 1 STS1 (payload) equals 0.309375 SCSI (Fast Ultra).