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ZMUX-124 4‑channel E1 line lossless automatic switching device

ZMUX-124 4‑channel E1 line lossless automatic switching device

The ZMUX-124 is a high‑performance E1‑service 1+1 channel protection switching device, specifically designed to ensure the continuity and reliability of critical E1 services. The equipment provides four primary E1 interfaces and four backup E1 interfaces, supporting protection for up to four user‑side E1 circuits. By continuously monitoring the transmission quality of both primary and backup E1 channels, it can automatically switch over without service interruption within ≤20 ms in the event of a fault or performance degradation, thereby meeting carrier‑grade transmission protection standards.

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Product Overview Application Solutions Configuration Information Technical Parameters Product Documentation

Product Overview

ZMUX-124 is a high-performance 1+1 channel protection switching device that supports four‑channel E1 service protection—providing four primary E1 ports and four backup E1 ports. It is specifically designed to ensure the continuity and reliability of critical E1 services, such as mobile base station backhaul, vital dedicated lines, and video conferencing. By continuously monitoring the transmission quality of both primary and backup E1 channels, the device can automatically switch over without service interruption in ≤20 ms upon detecting a fault or performance degradation, meeting carrier‑grade transmission protection standards.

In addition, this product series includes models such as the ZMUX-121 (supporting 1 E1 protection channel), the ZMUX-122 (supporting 2 E1 protection channels), the ZMUX-128 (supporting 8 E1 protection channels), and the ZMUX-1200 (supporting 56 E1 protection channels), thereby meeting the protection requirements of businesses of varying scales.

Core Competencies

Damage-free automatic switching

Employing advanced synchronous switching technology, the handover process ensures seamless operation with no stuttering, frame desynchronization, or signal interruption, delivering a “zero‑perception” user experience.

Intelligent Link Monitoring

Real-time monitoring of E1 line status: detects signal loss (LOS), frame loss of lock (LOF), all‑ones alarm (AIS), and bit error rate (BER) degradation, enabling precise handover triggering.

Rapid Deployment and Operations

1U standard rack: front indicator panel + rear cable exit design, quick installation in 5 minutes.

Zero-configuration provisioning: Pre-configured with factory settings, enabling service immediately upon power-up.

Visualized Network Management (optional): Real-time monitoring of device status, link error rates, handover records, and more.

Dual-power 1+1 redundancy protection

Supports dual AC, dual DC, or AC–DC hybrid power supply.

Power redundancy design ensures continuous system operation.

Exquisite design, exceptional experience

Compact and reliable hardware platform: Standard 19-inch 1U rack-mount design, compact in structure and easy to install.

Green, energy-saving, and quiet operation: The device consumes less than 30 W of power, features a fanless, silent design, and supports 24/7 continuous operation.

Clear interface configuration: Provides four primary E1 interfaces, four backup E1 interfaces, and four user‑side E1 interfaces, with a simple and straightforward connection.

Multi-mode switching mechanism: Supports manual/automatic intelligent switching, which can be triggered by conditions such as signal loss, AIS alarms, and bit-error thresholds.

Broad business compatibility: Supports both framed and unframed formats, accommodating a wide range of signal service access requirements.

Power outage service direct connection: When the equipment is powered off, it automatically establishes a physical direct connection between the user’s E1 interface and the current E1 channel, ensuring uninterrupted service.

Flexible deployment modes: It supports single‑device local protection and can also achieve end-to-end full‑line protection through the pairing of two devices.

Intelligent diagnostic function: The front panel is equipped with comprehensive status indicators, enabling rapid fault localization.

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