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ZMUX-1200 Centralized E1 Channel Lossless Automatic Switching Device
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Product Overview
The ZMUX-1200 is a high-capacity, non‑intrusive E1‑channel protection switching device that features a modular chassis design. By flexibly configuring E1 protection line cards, a single chassis can support 1+1 primary‑backup routing protection for up to 56 E1 channels.
The device continuously monitors the status and transmission quality of the primary and backup E1 links, enabling seamless, lossless automatic switchover within ≤20 ms in the event of a failure or performance degradation. This ensures zero service interruption and zero perceived impact, fully meeting carrier‑grade reliability standards.
The device can be deployed at the network edge or used in conjunction with a remote site. It is specifically designed to ensure the continuity of critical services such as mobile base station backhaul, dedicated lines for key government and enterprise customers, and real-time video conferencing, serving as a reliable cornerstone for building highly available transport networks.
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-124 (supporting 4 E1 protection channels), and the ZMUX-1200 (supporting 56 E1 protection channels), thereby meeting the protection requirements of businesses of varying scales.
Core Competencies
Carrier-grade reliable protection
Seamless switchover: Leveraging multi‑dimensional real‑time monitoring of signal loss, frame desynchronization, AIS alarms, and bit‑error degradation, the switchover achieves zero packet loss and zero bit errors.
Full‑link redundancy: Supports 1+1 protection with primary/standby routing, providing up to 56 E1 channels of protection per system.
Power‑off pass‑through: When the device loses power, the user’s E1 interface is automatically and physically connected to the currently active channel, ensuring uninterrupted service.
Modular Elastic Architecture
High-density design: 19-inch, 6U chassis supporting 14 tributary boards and 2 power‑supply board slots; a fully configured single chassis can provide up to 56 E1 protection channels.
Flexible configuration: Supports mixed insertion of 2‑in/4‑out and 4‑in/8‑out tributary boards, enabling on-demand capacity expansion.
Hot-swappable capacity expansion: The line cards support online insertion and removal, enabling seamless scaling without disrupting existing services.
Industrial-grade robust design
Dual-power 1+1 redundancy: Supports AC/DC redundant power supply to ensure continuous system operation.
Fault isolation mechanism: Physical channel isolation at the board level ensures that a single-board failure does not affect the overall system.
Silent, fanless: Featuring a fully natural cooling design, it supports quiet, stable 24/7 operation.
Zero-configuration provisioning: Pre-configured with factory settings, enabling service immediately upon power-up.
Intelligent Operations and Maintenance Management
Visualization-based network management: The Yinxun GZYX_NMS_V3.0 network management platform enables topology monitoring, NE management, performance management, configuration management, fault management, log management, and more.
Multi‑mode connectivity: Optional RS‑232/485 or Ethernet, supporting remote maintenance and management.
Centralized monitoring: includes information such as operating status, power status, link status, and switchover records.
Product Features
Hardware Design: 19-inch 6U standard rack, with a front indicator panel and rear cable management, for streamlined deployment.
Interface Capabilities: It can provide up to 56 primary E1 interfaces, 56 backup E1 interfaces, and 56 user‑side E1 interfaces.
Switch mode: Supports manual/automatic switching and can be triggered by conditions such as LOS, LOF, AIS, and bit-error thresholds.
Business Compatibility: Supports framed and unframed E1 formats, enabling broad compatibility with various service access scenarios.
Deployment method: Supports standalone local protection, and can also be paired in two units to achieve end-to-end full‑path protection.
Maintenance Diagnosis: The front panel features multi‑state indicator lights, enabling rapid fault localization.
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