IPmux-1/1EInstallation and Operation Manual

Chapter 1 Introduction

 

 

Timing Modes

The E1/T1 Tx clock, or ISDN/FXS PCM clock, can operate in several timing modes to provide maximum flexibility for connecting the IPmux-1 E1, T1, ISDN or FXS channels.

Each of the clocks must be configured correctly on both the Receive and Transmit ends to ensure proper operation and prevent pattern slips (see Figure 1-12, Figure 1-14, and Figure 1-15).

E1/T1

The E1/T1 available Tx modes are:

•Loopback Timing – the E1/T1 Tx clock is derived from the E1/T1 receive (Rx) clock.

•Adaptive Timing – in this mode, the E1 or T1 Tx clock is regenerated using the Adaptive method. In this method, the fill level of the buffer receiving packets is monitored. If the buffer begins to overfill, the regenerated Tx clock frequency increases to avoid overflow. If the buffer begins to empty, the Tx clock (toward the TDM device) decreases to avoid underflow.

•Internal Clock Timing – in this mode, the Tx clock is received from an internal oscillator.

•External Clock Timing – in this mode the Tx clock is taken from the external clock input (Ordering option). The External Clock port also outputs the input clock signal to allow connection to other units, if needed.

Note In Adaptive Timing mode the regenerated clock is subject to network Packet Delay Variation and may not comply with jitter and wander specifications.

FXS/BRI

The available timing modes for the PCM clock are:

•Loopback Timing – available only when IPmux-1E BRI is configured as TE (not available in BRI NT mode or for FXS interface). In this mode the PCM clock is derived from Channel 1.

It is recommended not to deactivate Channel 1 while it is in loopback clock so that data will not be damaged. If Channel 1 is disconnected or deactivated (by the NT side), the PCM clock will change to Internal clock and a momentary

Warning disruption will occur to the other channels (2,3,4), if they are active.

•Adaptive Mode – the clock is regenerated using the Adaptive method, where the rate of arriving packets is used to regenerate the clock (see E1/T1).

•Internal Mode – the clock is received from an internal oscillator.

Functional Description

1-15

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RAD Data comm IPmux-1E operation manual Timing Modes, E1/T1
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IPmux-1E, IPmux-1 specifications

RAD Data Comm is a renowned manufacturer known for its high-quality communication solutions, and among its notable offerings are the IPmux-1 and IPmux-1E devices. These compact and versatile products are designed for efficient network integration and data transport over various mediums including IP-based networks.

The IPmux-1 is a powerful multiplexer that enables the transmission of multiple channels of voice, data, and even fax over a single IP link. It supports various protocols such as E1, T1, and V.35, making it an ideal solution for businesses looking to optimize their existing infrastructure while upgrading to more modern technologies. The device is also equipped with advanced features such as payload compression and error correction, which ensure high-quality performance even over less reliable networks.

On the other hand, the IPmux-1E is an enhanced version of the original device, featuring additional capabilities that extend its flexibility and functionality. This model supports a higher density of channels and offers advanced management and monitoring tools that provide users with detailed insights into network performance. The IPmux-1E is particularly beneficial for service providers and enterprises that require a more robust solution capable of handling greater bandwidth and multiple service types across a single platform.

Both IPmux models utilize advanced packet-processing technology, facilitating seamless data encapsulation and reducing latency, which is critical in today’s fast-paced digital environment. They are designed to easily integrate with existing infrastructure, allowing organizations to transition smoothly to a more modern telecommunications framework without the need for significant investment in new hardware.

Key characteristics of the IPmux-1 and IPmux-1E include their reliability, low power consumption, and rugged design suitable for deployment in various locations. Their modular architecture offers users the flexibility to scale their systems according to evolving needs.

In summary, RAD Data Comm's IPmux-1 and IPmux-1E devices provide an excellent solution for organizations seeking to consolidate their voice and data services into a single network infrastructure. With their advanced features, support for various protocols, and robust performance, they are well-suited for both enterprise and service provider applications, ensuring efficient communication and data management in today's increasingly connected world.
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