What Is This Tool?
This converter transforms data transfer measurements from the legacy modem (110) rate, representing early serial link speeds, into the Virtual Tributary 2 (payload), a SONET/SDH channel designed for transporting 2.048 Mb/s PDH/E1 signals in optical networks.
How to Use This Tool?
-
Enter the data rate value expressed in modem (110) units that you want to convert.
-
Select modem (110) as the source unit and Virtual Tributary 2 (payload) as the target unit.
-
Submit the values to receive the equivalent measure in Virtual Tributary 2 (payload) units.
Key Features
-
Converts modem (110) speeds measured in bits per second to SONET/SDH Virtual Tributary 2 payload units.
-
Supports legacy teleprinter and teletype data rate conversions to modern synchronous optical network formats.
-
Assists with emulation and interoperability testing for vintage and legacy telecommunications systems.
-
Provides conversion based on the exact rate of 1 modem (110) equaling 0.0000537109 Virtual Tributary 2 payload.
Examples
-
Converting 10 modem (110) units yields 0.000537109 Virtual Tributary 2 (payload).
-
Converting 100 modem (110) units results in 0.00537109 Virtual Tributary 2 (payload).
Common Use Cases
-
Mapping low-speed legacy serial data rates into SONET/SDH optical frames for integration or emulation.
-
Comparing and documenting historical 110 bps modem link speeds within modern synchronous network contexts.
-
Testing and validating network equipment for vintage telecommunications protocols and connections.
Tips & Best Practices
-
Use the converter primarily for historical analysis, system emulation, or documentation of legacy data links.
-
Understand the significant difference in scale between modem (110) speeds and Virtual Tributary 2 payloads.
-
Apply conversions carefully when planning interoperability or circuit emulation involving legacy and modern networks.
Limitations
-
Modem (110) represents an outdated and very low data rate relevant mostly for legacy or historical uses.
-
Direct real-time conversion is impractical due to differing technologies and scale differences.
-
Conversion precision is limited by low base rate and framing differences between modem and SONET/SDH payload units.
Frequently Asked Questions
-
What does modem (110) represent in data transfer?
-
Modem (110) refers to a legacy modem speed of about 110 bits per second, used in early dial-up and teletype communications.
-
What is a Virtual Tributary 2 (payload)?
-
Virtual Tributary 2 (payload) is a SONET/SDH container designed to carry a 2.048 Mb/s E1 channel for multiplexing low-rate signals over optical networks.
-
Why convert from modem (110) to Virtual Tributary 2 (payload)?
-
This conversion helps map very low-speed legacy serial data into modern synchronous optical network frames to support emulation and interoperability.
Key Terminology
-
modem (110)
-
A legacy modem transmission speed of about 110 bits per second, used for early dial-up and teletype communication links.
-
Virtual Tributary 2 (payload)
-
A SONET/SDH virtual tributary container sized to carry a 2.048 Mb/s E1 channel, enabling transport of low-rate time-division multiplexed signals in optical networks.
-
SONET/SDH
-
Synchronous optical networking standards that carry multiplexed digital signals over optical fiber.