IDM DUP Centralized Channel Mutual Backup Switching Device
Some critical remote dispatch and control sites (such as subways, airports, and military facilities) often require extremely high system reliability. It is common to run services over two or more transmission networks (e.g., leased channels from China Unicom and China Mobile respectively, or satellite and terrestrial network mutual backup).
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Some critical remote dispatch and control sites (such as subways, airports, and military facilities) often require extremely high system reliability. It is common to run services over two or more transmission networks (e.g., leased channels from China Unicom and China Mobile respectively, or satellite and terrestrial network mutual backup). User terminals require a device capable of automatically selecting the normal transmission network and channel. This is exactly what our device delivers — a channel switching device, lossless switching device, and mutual backup channel switching device.
The IDM DUP product supports multi-path transmission and active optimal path selection for E1 channels, telephone channels, pure audio channels, and RS232/RS485 channels.
The IDM DUP centralized channel mutual backup switching device provides 12 mutual backup switching card slots. It can support up to dual redundant CMU master control cards and dual redundant power supply cards. The mutual backup channel switching device is primarily designed to minimize service interruptions caused by transmission path failures or equipment failures.
IDM DUP Centralized Device
Each user card slot supports automatic switching, NMS (Network Management System) switching, and manual switching, indicated by the mode indicator LEDs on the front panel. The mode can be configured via the NMS or controlled by the mode switch button on the front panel.
The IDM DUP can accommodate telephone mutual backup cards, voice mutual backup cards, and E1 lossy/lossless switching cards, serving as a mutual backup channel selector. The 4-position DIP switch on each card controls manual switching for channels 1–4 respectively (the E1 switching card has only two groups of E1 channel switching). Manual switching is only possible when the manual switching indicator LED is illuminated, ensuring lossless switching.
The centralized device features a 3U chassis architecture with a unified Ethernet NMS card and dual redundant power supply cards. Channel monitoring and switching can be implemented through the NMS, with switching conditions configured via the NMS. It supports automatic switching as well as manual forced switching via the NMS or DIP switches, with manual switching having higher priority.
