Basic Info.

Product Description

Spc-155 series is integrated service transmission equipment manufactured by beijing spacecom co., ltd. with its self-developed special-purpose integratedcircuit.it combines standard 2m traditional tdm service interface with 10/100base-tx ethernetdata service interface and convert the data into high-speed optical signals to transmitover fiber, making it possible transmitting both high-speed dat service and traditional tdm service over the same pair of fibers, meeting users requirements for integrated access of high-speed data service and traditional tdm service with the minimal cost. the advanced dual-light-beam switching and restoration mechanism enables the equipment to achieve 1+1 protection for services. product features ?use large asic chips, simple circuit, low power consumption, high price/performance; ?spc-155-d series use dual-light-beam 1+1 protection and restoration mechanism, high system reliability; ?provide 4, 8 and 16 e1 digital interfaces, impedance: 75o/120o options; ?provide an order line interface; ?provide a rs232 asynchronous data interface; ?provide one or four ports of 10/100base-tx adaptive ethernet data interface, bandwidth adjustable with 1m as a unit,max bandwidth: 100m; ?provide a management interface for centralized monitoring, and support system upgrading; ?provide one or two ports of v.35 interface (n*64k, support all the v.35 clock mode); ?e1 and v.35 route across; ?bert test inside; ?applicable in a variety of power supply environments: -48v dc or 220v ac; ?standard 1u crust. electric features of e1 interface nominal rate: 2048kbps,margin±50ppm interface code type: hdb3 interface impedance: 75o (unbalanced) or 120o (balanced) electric features of digital interface: compliant with itu-t g.703 recommendations jitter transfer performance: compliant with itu-t g.823 recommendations input jitter tolerance:compliant with itu-t g.823 recommendations output jitter: compliant with itu-tg.823 recommendations level: ±2.37v±10% or ±3.00v±10% interface connector: rj45 or bnc coaxial optical interface features transmission optical power: -3dbm~-8dbm receiving sensitivity: -33dbm~- 40dbm fiber interface: dual sc/dual fc/single sc applicable fiber: single-mode, multi-mode ethernet interface features interface: 10/100base-tx, support auto-negotiation interface specification: compliance with ieee-802.3uconnector: rj45 electric features of v.35 interface interface rate: n×64k, no traffic control, transparent transmission connector: db25 slot working mode: dce and dte optional