What Is This Tool?
This unit converter allows users to transform values from Virtual Tributary 2 (payload), a SONET/SDH virtual tributary container for carrying 2.048 Mb/s PDH/E1 channels, into STM-64 (signal), a high-speed Synchronous Transport Module signal used in modern optical transport networks.
How to Use This Tool?
-
Enter the number of Virtual Tributary 2 (payload) units you want to convert.
-
The tool applies the conversion rate to calculate the equivalent STM-64 (signal) value.
-
View the output showing the STM-64 (signal) quantity that corresponds to your input.
-
Use the converted value for network planning or signal aggregation purposes.
Key Features
-
Converts Virtual Tributary 2 payload units to STM-64 signal units for data transfer measurements.
-
Utilizes the official conversion rate multiplying VT2 payload values by 0.0002057613 to get STM-64 signals.
-
Supports aggregation of multiple low-rate channels into high-capacity optical signals.
-
Browser-based and straightforward interface for quick conversions.
-
Designed specifically for telecommunications carrier networks and fiber optic systems.
Examples
-
10 Virtual Tributary 2 (payload) equals 0.002057613 STM-64 (signal).
-
100 Virtual Tributary 2 (payload) converts to 0.02057613 STM-64 (signal).
Common Use Cases
-
Aggregating multiple E1 circuits into an STM-64 signal for high-capacity SDH backbone transport.
-
Mapping and grooming legacy time-division multiplexed channels over optical network frames.
-
Supporting telecom carrier networks using SONET/SDH infrastructure for long-haul fiber transmission.
-
Interconnecting PDH/TDM services with high-speed SDH and SONET optical transmission systems.
Tips & Best Practices
-
Ensure your network equipment supports PDH and SDH/SONET multiplexing standards for accurate conversion.
-
Consider overhead and payload mapping limitations when planning channel aggregation.
-
Use this conversion to facilitate efficient transport and grooming of legacy TDM circuits over optical networks.
-
Verify the compatibility of your signaling protocols with the conversion output.
Limitations
-
Conversion assumes compatibility between PDH and SDH/SONET multiplexing technologies.
-
Aggregation capacity is constrained by the STM-64 line rate and overhead in payload mapping.
-
Grooming precision depends on the capabilities of network hardware and adherence to protocol standards.
Frequently Asked Questions
-
What is a Virtual Tributary 2 (payload)?
-
It is a SONET/SDH virtual tributary container sized to carry a 2.048 Mb/s PDH/E1 channel and is used to map lower-rate time-division multiplexed signals into higher-rate optical frames.
-
What does STM-64 (signal) represent?
-
STM-64 is a Synchronous Transport Module level-64 signal in the SDH hierarchy with a line rate of about 10 Gbit/s, functionally equivalent to SONET OC-192/STS-192.
-
Why convert from Virtual Tributary 2 to STM-64?
-
Users convert to aggregate multiple low-rate E1 circuits into a high-capacity SDH backbone for efficient transport and to groom legacy TDM channels into modern optical network frames.
Key Terminology
-
Virtual Tributary 2 (payload)
-
A SONET/SDH container sized for carrying a 2.048 Mb/s PDH/E1 channel to multiplex low-rate time-division multiplexed signals into higher-rate optical frames.
-
STM-64 (signal)
-
A level-64 Synchronous Transport Module signal in the SDH framework with a line rate near 10 Gbit/s, equivalent to SONET OC-192/STS-192.
-
PDH
-
Plesiochronous Digital Hierarchy, a telecom standard for multiplexing several digital bit streams.
-
SDH
-
Synchronous Digital Hierarchy, a standardized digital communication protocol used to transfer multiple digital bit streams over optical fiber.