SDH optical transmission equipment is designed by Rongyi Communication Co***ny based on the latest suggestion of ITU-T and the technique specification of SDH in our country. The transmission rate ranges from STM-1 to STM-4.STM-16, STM-64; it is a broadband optical transmission platform with the function of data transmission, connection to Ethernet and according with SDH protocol. It not only supports powerful cross-connection capability between high order VC4 and low order VC12, but also provides very strong capability of network construction and business di***tch like other SDH equipment. It is able to transmit data, voice and image and exchange data efficiently through Ethernet after being equipped corresponding module. It can meet the requirement of current network and future multi-business-network and be put up to several types of net unit such as ADM, TM and REG.
There is intact business that is disposed, assigns the functions, such as inserting, clock synchronization,etc., support the chain type network, ring type many kinds of complicateds network way of group, such as network, tangent ring , crossing ring,etc., support STM-1 get STM-4,STM-16.STM-64 mix group network, level and smooth to upgrade, can mix group network with PDH equipment, unify network management. Product this enters the net and measures through the People's Republic of China Ministry of Information Industry (network the symbol of the card: 28-6173-031180),And apply to the trades, such as telecommunication, electricity, railway, public security men, fire control, army, etc. extensively.
Main characteristic:
¡ô Support how mere direction copies of equipment can insert up to 8 STM-1 mere directions, 4 STM-4 smooth directions.
¡ô 1+1 with the light ways protects the function
¡ô Support level and smooth to upgrade
RY155/622 transmit equipment support STM-1 level and smooth upgrading to get STM-4, STM-16,STM-64 support 12 *12 VC4 high-order cross matrix only, support 504*504 VC12 low steps cross m |
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