IDM MSTP

Overview:

The IDM MSTP-YZ155 Broadband/Narrowband Integrated Optical Terminal is a new-generation product based on SDH/MSTP and PCM technologies, developed specifically for military requirements. It meets user demands for fiber-optic transmission and access of various broadband and narrowband services, providing more reliable communication protection. The device offers two STM-1 optical interfaces and can be configured with multiple service interface cards according to actual requirements. The equipment employs industrial-grade components and comprehensive EMC and interface protection designs. The entire unit features low power consumption; it uses aviation connectors as interfaces, offering waterproofing, excellent sealing, and strong vibration resistance. It is suitable for operation in various field temperature/humidity environments, electromagnetic conditions, and mobile scenarios.

Product Features:

• Supports up to 16 E1 tributary channels with arbitrary add/drop capability;
• Provides up to 4 physically isolated Ethernet ports, enabling N×E1 bandwidth bundling with arbitrary allocation;
• Supports 30 channels of 64K and N×64K voice/data services, with a comprehensive range of over 20 service types;
• Employs a plug-in card structure design, providing various voice and data services through interface cards with flexible configuration and strong upgradeability;
• Supports point-to-point, chain, and ring networking topologies, and can be jointly networked with centralized MSTP equipment to form complex networks such as tangent rings and branch rings;
• Compliant with ITU-T G.813 standards, fully meeting requirements for timing accuracy, pull-in/pull-out, noise generation, noise tolerance, transfer characteristics, and long/short-term phase response (holdover mode);
• Features comprehensive network management functionality with real-time online monitoring;
• High system integration, high reliability, and low power consumption; suitable for harsh field environments with excellent sealing, waterproofing, and shock resistance.

Optical Interface

Connector Type	FC (SC etc. customizable)	Fiber Mode	Single-mode (multi-mode optional)
Tx/Rx Rate	155M/155M	Tx/Rx Wavelength	1310nm/1550nm
Optical Output Power	-15～-8dBm	Receiver Sensitivity	Better than -32dBm
Transmission Distance	40Km, optional long-distance optical modules available for extended fiber transmission.

E1 Interface

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

Ethernet

Connector 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

EM2/4-Wire Interface

Audio Range	300Hz～3400Hz	Impedance	Balanced 600Ω
Compression Rate	ITU G.711 A-law	Return Loss	≥18dB

V.24 Interface

Transmission Rate

Asynchronous ≤9600bps; Synchronous 64Kbps

Electrical Characteristics

Compliant with CCITT V.28 protocol

V.35 Interface

Interface Type	RJ-45	Electrical Characteristics	Compliant with ITU-T V.35 recommendation
Transmission Rate	n×64Kbps (n=0～31)	Terminal Interface	Compliant with ISO2593

Power Supply and Consumption

Power Supply

AC220V/DC-48V

Total Power Consumption

≤50W

Environmental Conditions

Operating Temperature	-30℃～+50℃	Storage Temperature	-45oC～+70oC
Industrial Grade	-50oC～+85 oC	Relative Humidity	0～95% (non-condensing)

Product Dimensions

Length × Depth × Height	440mm × 340mm × 88mm
Length × Depth × Height	483mm × 360mm × 88mm (with mounting ears and handles)

Application Example: