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