الوصف

4E1,8E1,*6E1 + *0/**0Mbps PDH Multiplexer 

• Use large ASIC chips, simple circuit, low power consumption,high rice/performance;
• SPC****-D series Use dual-light-beam 1*1 protection and restoration mechanism, high system reliability;
• Provide 4, 8 and *6 E1 digital interfaces, impedance: *5&branded;/**0&branded; options;
• Provide an order line interface;
• Provide a RS**2 asynchronous data interface;
• Provide one or four ports of *0/**0Base-Tx adaptive Ethernet data interface,   bandwidth adjustable with 1M as a unit,Max bandwidth: **0M;
• Provide a management interface for centralized monitoring, and support system upgrading;
• Provide one or two ports of V.*5 interface (N**4K, support all the V.*5 clock mode);
• E1 and V.*5 route across;
• BERT test inside;
• Applicable in a variety of power supply environments: **8V DC or **0V AC;
• Standard 1U crust.   

• Nominal rate: ***8Kbps,margin±*0ppm
• nterface code type: HDB3
• Interface impedance: *5&branded; (unbalanced) Or **0&branded; (balanced)
• Electric features of digital interface:compliant with ITU-T G.**3 recommendations
  Jitter transfer performance: compliant with ITU-T G.**3 recommendations
• Input Jitter tolerance:compliant with ITU-T G.**3 recommendations
• Output jitter: compliant with ITU-TG.**3 recommendations
• Level: ±2.*7V±*0% or ±3.*0V±*0%
• Interface connector: RJ*5 or BNC coaxial

Optical interface features

• Fiber interface: dual SC/dual FC/single SC
• Applicable fiber: single-mode, multi-mode

•  Interface: *0/**0Base-Tx, support auto-negotiation
•  Interface specification: compliance with IEEE***2.3u
•  Connector: RJ*5
•  Electric features of V.*5 interface
•  Interface rate: N×*4K, no traffic control, transparent transmission

Order Infomation