The improvement in the trade balances of the AC4 was fairly equally distributed among the United States, Europe, and Japan, with the exception of Indonesia's balance with Japan.
The AC4 countries saw their trade balances improve dramatically, with imports falling sharply while exports were largely flat.
sites served over 46,760 participants last year.
5 Gbps) network, based on its FOCUS(TM) AC1 and FOCUS AC4
add/drop multiplexers in March 2001.
Tele Danmark, which is owned by San Antonio, Texas-based SBC Communications (NYSE: SBC), also is installing the FOCUS AC4
system, an advanced and well-established trunk SDH network solution in its new Pan- European network.
The DSC FOCUS AC4 optical transmission system will connect the terminal stations in both countries via five offshore platforms in the North Sea.
DSC FOCUS AC4 is a family of optical transmission systems developed for the trunk layer of the network.
The contract includes DSC FOCUS AC1 access multiplexing equipment, DSC FOCUS AC4
trunk equipment and DSC FOCUS NM2100em, a powerful network element tool to control and monitor the equipment.
The DSC FOCUS AC4
product family consists of add-drop multiplexers and terminal multiplexers for VC-4 level switching with optical interfaces for STM-4, STM-16 and STM-64.
DSC FOCUS AC4
system can be configured as add/drop multiplexers
Under the contract, DSC will supply DSC FOCUS AC4
, an advanced next generation multi-layer SDH (Synchronous Digital Hierarchy) trunk network solution.
These new products include Airspan(TM), a fixed wireless loop solution; Litespan(R)-120, an international loop access product; iMTN(TM), a next generation digital cross-connect; and DSC FOCUS AC1 and AC4
, SDH-based high-end transmission and add drop multiplexers.