SDH/MSPP Transport Platform(H9MO-1641)

H9MO-155 is Class STM-1 SDH fiber optic transmission equipment (at a transmission rate of155.520Mbit/s), mainly designed for access networks and various dedicated networks.

H9MO-155 can be configured as terminal multiplexing (TM) equipment, add/drop multiplexing(ADM) equipment or relay equipment, and is suitable to form fiber optic transmission networks such as chain network and MS dedicated protection ring, able to provide a total of 63 transparent channels for digital transmission at 2048kbit/s (E1) between nodes of the network.Furthermore, the equipment can also provide Ether and other data service access and transmission, therefore it can also be used in telecommunication services and wideband data applications.

H9MO-155 equipment can synchronize with external clock, line clock, clock extraction of specified E1 branch or equipment internal high precision oscillating source, and switch over automatically according to preset priorities.The system clock processing circuit is based on self-developed algorithm and realization chips, greatly increasing the synchronization characteristics of SDH network, offering the timing guarantee for configuring multi-node networks with complicated topological structure.Special technical provisions have been adopted in the equipment to suppress LF jittering in E1 channel, with parameters better than the requirements in the latest ITU-T G.823 Recommendation.H9MO-155 equipment integrates the data service access, exchange and transmission, and has greatly raised the transmission efficiency by means of the statistical multiplexing feature of data service.It also adopts the advanced MPLS labeling technology, to classify data services, provide differential service quality for different customers, thus increasing the exchange efficiency, enhancing the system stability and offering full control ability to customers.This is a very important feature to MA or WA fiber optic networks.H9MO-155 adopts advanced integral hardware structure that can be flexibly configured to form various network topology structures.The system is also provided with a service telephone subsystem, enabling hotline, point-to-point or point-to-multi-point dialing to realize calls and conversations.The equipment can also provide a 64kbit/s digital channel as required.The network system built up with H9MO-155 fiber optic transmission equipment can be included into the centralized management environment of our supervision software H7GMSW.

The network operation conditions can be monitored in real time via the supervision system, to control the loop back testing in various modes, and to realize centralized dispatching of network channel resources and overall network management.The main control console of the supervision system is based on microcomputer with Windows environment and visual user interfaces, featuring simple operation and easy use.The dedicated interface adopts TABS protocol, and is connected with the main control console via RS485 bus.A portables upper vision computer can be connected with the monitored equipment via an F interface (RS232) interface.H9MO-155 equipment uses the extra large scale dedicated IC as its core, featuring small volume, low power consumption, high reliability and convenient installation and maintenance.