IDM MK
IDM MK
The IDM MK-MSTP SDH equipment is a brand-new mine information transmission device that provides 100/1000Mbps fast Ethernet and intrinsically safe voice interfaces. It is an explosion-proof communication product essential for establishing integrated service access and transmission underground. This product can be remotely managed via the network; it integrates MSTP transmission and PCM multi-service access functions, and utilizes SDH optical fiber ring network protection to provide more reliable communication protection. The IDM MK-MSTP can directly connect to underground intrinsically safe telephones, intrinsically safe cameras, intrinsically safe broadcasting, and other terminals.
I. Overview
The IDM MK-MSTP Intrinsically Safe Optical-Electrical Integrated Transmission Equipment is a brand-new mining information transmission device that provides 100/1000Mbps Fast Ethernet and intrinsically safe voice interfaces. It is an essential explosion-proof communication product for establishing integrated service access and transmission underground. This product supports remote management via the network; it integrates MSTP transmission and PCM multi-service access functions, utilizing SDH optical fiber ring network protection to provide more reliable communication protection.
The IDM MK-MSTP can directly connect to underground intrinsically safe telephones, intrinsically safe cameras, intrinsically safe broadcasting terminals, and other endpoints.



IDM MK-MSTP Image
II. Product Features
Operating Voltage: DC 12V, Operating Current: ≤800mA;
Provides two STM-1 optical interfaces, supporting SDH ring and chain networks, with 1+1 channel protection for tributary services;
Provides 4 service slots, supporting E1, voice, data, and video access;
Provides 4 Ethernet service channels, enabling arbitrary bandwidth allocation of N×E1 (N=1~63);
Supports access for up to 30 telephone lines;
Telephone interface subscriber lines are isolated using isolation barriers;
Equipped with power, operating status, and communication status indicators;
Compact size, lightweight, easy installation, relocation, and maintenance, with high reliability.
III. Technical Specifications
Optical Interface
Fiber Mode | Single-mode (Multi-mode optional) | ||
TX/RX Rate | 155.52Mbps/155.52Mbps | TX/RX Wavelength | 1310nm/1550nm |
Optical Output Power | -12~-6dBm | Receiver Sensitivity | Better than-32dBm |
Transmission Distance | 20Km; long-distance optical modules can be optionally installed for extended fiber transmission | ||
E1 Interface
Line Rate | 2.048Mbps | Line Code | HDB3 |
Standard Protocol | SupportsITU-T G.703 | Impedance | 75Ω/120Ω |
Frame Structure | PCM30/32 | Signaling | Channel-Associated Signaling |
Ethernet
Transmission Rate | N×VC12 (N≤50) | ||
Standard Protocol | Supports IEEE802.3 | Operating Mode | Full/Half Duplex/Auto-negotiation |
EM2/4 Wire Interface
Audio Frequency Range | 300Hz~3400Hz | Impedance | Balanced600Ω |
Companding | A-law per ITU G.711 | Return Loss | Not less than18dB |
V.24 Interface
Transmission Rate | Asynchronous≤9600bps; Synchronous64Kbps | Electrical Characteristics | Compliant withCCITT V.28protocol |
Power Supply and Power Consumption
Power Supply | DC 12V | Power Consumption | ≤12W |
Environmental Conditions
Operating Temperature | -20oC ~+50oC | Relative Humidity | 0~95% (non-condensing) |
IV. Service Board Selection List

V. Application Examples

Typical Application Diagram
The IDM MK-MSTP can form star or ring networks together with our above-ground aggregation SDH optical-electrical integrated unit, the IDM MSAP-G3CP, providing basic communication services to underground areas, including telephone interfaces, audio interfaces, network interfaces, etc. It can connect to intrinsically safe telephones, intrinsically safe broadcasting systems, intrinsically safe switches, and intrinsically safe cameras.
常见问题
SDH技术与MSTP产品有哪些特点?
一、下一代SDH技术与产品的发展方向 关于下一代SDH技术的发展方向和相应产品的研发策略是电信领域的研究热点,不同厂家、不同技术背景的研究人员对它有着不同的认识和理解,不同的电信产品制造商在产品研发时基于各自的理解有着不同的技术路线…
查看完整回答EoPDH技术简介
Ethernet-over-PDH 是一组技术和标准,用于在已建立的准同步数字系列(PDH) 电信网上传输本地以太网帧,这项技术可以让运营商充分利用由传统PDH和SDH设备所组成的网络,并
查看完整回答Ethernet Over SDH技术简介
接口规格: SDH侧,提供1个155.52Mbps LVDS接口,支持STM-1。接收侧,由FPGA外围芯片提供CDR恢复时钟,发送侧直接外接光模块; 以太网侧,提供1个全双工MII接口,外接
查看完整回答以太网交换板原理
瑞光数码公司在IDM MSTP155-24平台推出的以太网交换板基于生成树协议和单向链路协议,可实现在单向链路的情况下完成以太网交换并达到环网保护的目的,有效地克服了SDH环
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