What Is This Tool?
This converter enables translation of data transfer rates from STS1 (payload), the usable capacity inside an STS-1 SONET frame, to SCSI (Ultra-2), a parallel interface standard used in storage devices. It facilitates comparison between optical transport throughput and storage interface speeds.
How to Use This Tool?
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Enter the numeric value representing STS1 (payload) data transfer capacity
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Select the origin unit as STS1 (payload) and target unit as SCSI (Ultra-2)
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Click the convert button to view the equivalent value in SCSI (Ultra-2)
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Use the resulting value for comparisons or capacity planning between SONET payloads and SCSI interfaces
Key Features
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Converts data transfer values from STS1 (payload) to SCSI (Ultra-2) units
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Uses accurate conversion rates based on payload capacity and interface specifications
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Supports capacity planning across telecommunications and enterprise storage environments
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Online, browser-based tool requiring no installation
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Easy input and output selection for hassle-free conversions
Examples
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1 STS1 (payload) converts to 0.07734375 SCSI (Ultra-2)
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10 STS1 (payload) converts to 0.7734375 SCSI (Ultra-2)
Common Use Cases
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Provisioning optical carrier circuits like OC-1/STS-1 to carry DS3 or multiple DS1 channels
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Planning capacity on SONET rings accounting for user throughput of 50.112 Mbps
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Mapping tributary signals such as ATM cells or Ethernet frames into SONET payload
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Connecting data center disk arrays and RAID controllers via SCSI Ultra-2 interfaces
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Interfacing legacy high-performance workstations with parallel SCSI peripherals
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Comparing optical transport payload data rates with storage interface speeds for interoperability
Tips & Best Practices
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Understand that this conversion only relates raw data rates and does not account for protocol overhead
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Use the tool to assist with capacity planning between telecommunications and storage systems
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Verify unit selections before converting to ensure accurate results
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Combine conversions with knowledge of specific application environments for best outcomes
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Remember that effective throughput could vary due to signaling differences
Limitations
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Conversion equates raw data transfer rates but does not include signaling or protocol overhead differences
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Effective throughput may be lower due to protocol efficiency variations between SONET payload and SCSI Ultra-2
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Units represent different technologies and interface protocols, so direct equivalence applies only to nominal data rates
Frequently Asked Questions
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What does STS1 (payload) represent?
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STS1 (payload) is the user-data capacity inside an STS-1 SONET frame, with a usable payload capacity of 50.112 Mbps.
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What is SCSI (Ultra-2)?
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SCSI (Ultra-2) is a parallel interface standard using Low Voltage Differential signaling to connect storage devices with higher performance than earlier SCSI types.
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Can I directly equate throughput using this converter?
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This converter translates raw data rates but does not reflect the effects of signaling overhead or protocol differences on effective throughput.
Key Terminology
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STS1 (payload)
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The user-data capacity inside an STS-1 SONET frame, specifically the usable Synchronous Payload Envelope portion.
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SCSI (Ultra-2)
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A parallel Small Computer System Interface standard using Low Voltage Differential signaling for faster data transfers between storage devices and hosts.
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SONET
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Synchronous Optical Network, a standardized optical telecommunications protocol for transporting digital information.