The BD-MSDSL 2-wire modem is a robust, versatile solution designed for high-performance, long-range symmetric data transmission. Here's a structured breakdown of its key features and applications:
2-wire modem Key Features
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Technology & Standards:
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G.SHDSL Compliance: Adheres to ITU G.991.2 (SHDSL) and G.994.1 (handshake protocol), ensuring reliable, standardized communication.
 
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TC-PAM16 Modulation: Uses 16-level Trellis Coded Pulse Amplitude Modulation to enhance data efficiency and distance (up to 4km at 2304 Kbps over 2-wire).
 
 
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Interfaces:
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E1 (2.048 Mbps): Supports both BNC (75Ω coaxial) and RJ45 (120Ω twisted pair), accommodating legacy and modern infrastructure.
 
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V.35/V.24 (RS-232): Compatible with high-speed data equipment (e.g., routers) and legacy serial devices (e.g., industrial systems).
 
 
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Performance:
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Full-Duplex Operation: Achieves symmetric speeds over a single pair using echo cancellation.
 
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Self-Learning Capability: Automatically adjusts data rates and line settings for optimal performance in varying conditions.
 
 
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Design & Usability:
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Low Operational Cost: Eliminates need for repeaters up to 4km, reducing infrastructure costs.
 
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Plug-and-Play Setup: Simplified deployment with minimal configuration.
 
 
Applications
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Telecom/Enterprise: Connects PBX systems, remote offices, or E1 converter-based voice/data networks.
 
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Industrial/SCADA: Links sensors, PLCs, or control systems via V.35/V.24 in utilities, transportation, or manufacturing.
 
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Surveillance: Supports long-distance CCTV or data backhaul in urban/rural areas.
 
Considerations
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Impedance Matching: Ensure proper termination E1 converter(75Ω BNC vs. 120Ω RJ45) to prevent signal reflection.
 
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Line Quality: Adaptive rate adjustment maintains connectivity but may reduce speed in poor conditions.
 
2-wire GSHDSL modem Competitive Edge
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Interface Flexibility: Dual E1 converter port and V.35/V.24 support broadens compatibility.
 
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Resource Efficiency: TC-PAM16 maximizes bandwidth use, lowering spectral footprint.
 
*Comply with ITU G.SHDSL standard 2-wire 2304Kbps MSDSL modem
*3.5km-9.7km transmitting distance in copper lines with 24AWG(0.5mm) and 26 AW (0.4mm)
*For data interface: V.35,V.24/RS232 and E1/G.703 optional, Rate support:N*64Kbps(1≤N≤36)
*Not need to be set rate of slave modem, It follows the rate of master modem automatically. So it can carry out the administration of the remote equipments in networks *Comprehensive LED indicators on front panel,convenient for the diagnosis of equipment working state
*High-powered TC-PAM line coding technique 
*Low operating cost, simple manipulation, convenient use,
*Provide analog and digital loopback test
*Support Stand-Alone and Rock-Mount type optinal
*16-slots,elaborate cooling design and two redundant power supply
*-48V DC & 220V AC power supply optional
Data Interface 2 (V.35, V.24/RS232 interface)
Comply with V.35,V.24/RS232 standard
Physical connector :DB25 female jack,V.35 via external adapter
Transmission rate: N*64Kbps(N=1~36);V.24(64K; 128K;)
Work mode: DCE
E1 converter modem Power supply                         
working voltage range wide, good
anti-disturb and Isolation, work stable
option I – DC-48V,range DC-36V~DC-72C    
option II – AC220V,range AC165V~AC240V
Power Consumption:  <=5 Watts
Environment condition                   
Operating temperature:  0C~+50 C
Storage temperature:   -20 C~+70 C
Relative temperature:95% (uncondensed)
E1 converter modem Dimension                   
- 225mm(L)x145mm(W)x 40mm(H)