What Is This Tool?
This tool converts data transfer rates from ISDN (dual channel), which uses bonded ISDN B channels to provide combined throughput, to Virtual Tributary 2 (VT2) signal format representing a SONET/SDH sub-rate channel. It helps translate legacy ISDN data rates into equivalent SONET/SDH signal formats for network integration.
How to Use This Tool?
-
Enter the value in ISDN (dual channel) to convert.
-
Select ISDN (dual channel) as the source unit.
-
Choose Virtual Tributary 2 (signal) as the target unit.
-
Click convert to view the equivalent data transfer rate.
-
Use converted values for network planning and configuration.
Key Features
-
Converts between ISDN (dual channel) and Virtual Tributary 2 (signal) data rates.
-
Supports telecommunications and network engineering applications.
-
Browser-based and easy to use for quick conversions.
-
Displays results based on a standardized conversion rate.
-
Facilitates integration of legacy ISDN and modern SONET/SDH systems.
Examples
-
2 ISDN (dual channel) equals approximately 0.1111111112 Virtual Tributary 2 (signal).
-
5 ISDN (dual channel) converts to about 0.277777778 Virtual Tributary 2 (signal).
Common Use Cases
-
Translating ISDN bonded channel throughput into SONET/SDH sub-rate signal formats.
-
Configuring SONET multiplexers to carry lower-rate PDH circuits.
-
Supporting remote LAN access and backup links with bonded ISDN channels.
-
Planning capacity and provisioning telecom networks with mixed PDH and SONET/SDH services.
Tips & Best Practices
-
Ensure correct selection of source and target units before conversion.
-
Use the tool for network engineering scenarios involving ISDN and SONET/SDH interworking.
-
Verify converted values within the context of service-level data rates and signal framing formats.
-
Consider this conversion as approximate due to differing unit definitions.
Limitations
-
Conversion is approximate since ISDN (dual channel) describes a service-level data rate, not a strict unit.
-
Virtual Tributary 2 represents a SONET/SDH framed signal format, limiting direct applicability outside telecom transport contexts.
Frequently Asked Questions
-
What does ISDN (dual channel) mean?
-
ISDN (dual channel) refers to using both 64 kbit/s B channels in ISDN Basic Rate Interface combined to provide about 128 kbit/s throughput.
-
What is Virtual Tributary 2 (VT2)?
-
Virtual Tributary 2 is a SONET/SDH sub-rate signal carrying a 2.048 Mbps payload inside a higher-rate frame for multiplexing lower-rate circuits.
-
Why convert between ISDN (dual channel) and VT2 signal?
-
To translate lower-rate ISDN data throughput into SONET/SDH compatible sub-rate signal formats for network integration and planning.
Key Terminology
-
ISDN (dual channel)
-
A bonded service-level data rate combining two 64 kbit/s ISDN B channels for roughly 128 kbit/s throughput.
-
Virtual Tributary 2 (signal)
-
A SONET/SDH sub-rate framed signal carrying a 2.048 Mbps E1 payload within higher-rate transport frames.
-
SONET/SDH
-
Standard telecommunications protocols for multiplexing digital signals over optical fiber networks.