IDM-MSTP2500 SDH Multi-Service Access Platform

Overview:

The IDM MSTP2500 Multi-Service Transmission Platform is an STM-16 level MSTP product launched by our company in response to market demand. It enables the transmission of multiple services such as Ethernet, traditional PDH, digital television signals, and high-speed fiber access signals over the SDH system, meeting the needs of users for broadband and narrowband multi-service fiber transmission and access. This product adopts a single-chip integrated design solution, featuring high integration density, compact size, and rich service interfaces. It is suitable for a wide range of communication scenarios, public network backbone transmission networks, and private network systems, such as power dispatch systems, military networks, broadband access networks, traditional SDH systems, and user-customized services.

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Product Features:

• 19-inch 1U standard chassis, compliant with relevant ITU-T recommendations and SDH technical specifications;
• Integrates SDH optical transmission, PCM multiplexing, and Ethernet access multi-services into one platform;
• Provides 4 rate-configurable 2.5Gb/s (STM-16) or 622Mb/s (STM-4) optical interfaces;
• Provides 4 rate-configurable 622Mb/s (STM-4) or 155Mb/s (STM-1) optical interfaces;
• Supports 1+1 protection and hybrid networking;
• Provides 2 GE (Gigabit Ethernet) interfaces and 8 FE (Fast Ethernet) interfaces, supporting physical isolation or VLAN partitioning;
• FE cross-connection uses VC-12 as the minimum granularity, GE cross-connection uses VC-3 as the minimum granularity;
• Provides 3 E3 (34Mb/s) interfaces and 16 E1 interfaces;
• Supports add/drop of 3 channels of EC-1 signals;
• Supports transmission of digital television signals (DVB-ASI) and high-speed fiber access signals (ESCON) over the SDH system;
• Full timeslot cross-connection function, providing powerful and convenient add/drop service capabilities and modes;
• Supports AC/DC power supply, with dual power board mutual backup;
• Supports point-to-point, chain, and ring networking topologies, and can also be jointly networked with centralized MSTP systems;
• Provides F (100Base-T) and f (RS232) network management interfaces, offering the five major functions recommended by ITU-T: configuration, alarm, performance, maintenance, and security;
• Provides remote network management access, supporting remote monitoring.

Technical Specifications:

Optical Interface

• Interface Type: FC (SC and others customizable) | Fiber Mode: Single-mode (multi-mode optional)
• Rate: 2.5G/622M/155M | Transmit/Receive Wavelength: 1310nm/1550nm
• Transmit Optical Power: -15~-8dBm | Receive Sensitivity: Better than -32dBm
• Transmission Distance: 20Km, optional long-distance optical modules available for extended fiber transmission.

E1 Interface

• Bit Rate: 2048Kbps | Line Code: HDB3
• Standard Protocol: Supports ITU-T G.703 | Impedance: 75Ω/120Ω
• Frame Structure: PCM30/31 | Signaling: Channel-associated signaling

Ethernet

• Interface Type: RJ-45 | Transmission Rate: N×2.048Mbps (N≤50)
• Standard Protocol: Supports IEEE802.3 | Operating Mode: Full/Half duplex/Auto-negotiation

FXO, FXS Interfaces

• Audio Range: 300Hz～3400Hz | Compression Rate: ITU G.711 A-law
• Impedance: Three-element complex impedance 200Ω+560Ω//0.1μF | Loop Current: 25mA/channel

Power Supply and Consumption

• Power Supply Mode: AC220V or DC-48V | Total Power Consumption: ≤50W

Typical Network Configuration Example:

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The MSTP2500 can be used to build various network types such as point-to-point, chain networks, ring networks, and multi-ring networks. The following uses a relatively complex multi-ring network application as an example to illustrate the functional application of this device in actual networks.