The MFS and Colt city-based networks use digital technology, called synchronous digital hierarchy, which can carry millions of bytes of computer, voice and video information data simultaneously.
12.
Globe's national transmission network will be employing the Synchronous Digital Hierarchy ( SDH ), a digital technology capable of transmitting large amounts of voice and data information.
13.
This solution worked for a while; however PDH suffered from several inherent drawbacks which ultimately resulted in the development of the Synchronous Digital Hierarchy ( SDH ).
14.
In telecommunications, "'subnetwork connection protection "'( "'SNCP "'), is a type of protection mechanism associated with synchronous optical networks such as synchronous digital hierarchy ( SDH ).
15.
The MFS and COLT city-based networks are based on digital technology called synchronous digital hierarchy that can carry millions of bytes of computer, voice and video information simultaneously.
16.
The reports said the six firms would still undertake the installation of the high-speed Synchronous Digital Hierarchy project, which accounts for about 15 percent of the entire project cost.
17.
In 2003, ADVA Optical Networking introduced the FSP 1500, a generic framing procedure next-generation synchronous digital hierarchy access solution and in the next year it introduced its first FSP 150 Ethernet access product.
18.
It was 1040 km in length and used Synchronous Digital Hierarchy technology and had two 2.5Gbit / s lines ( One active and one redundant ) and can simultaneously carry 30, 000 telephone calls.
19.
There are other data rates in use, e . g ., military systems that operate at six and eight times the synchronous optical networking ( SONET ) or synchronous digital hierarchy ( SDH ).
20.
The project is to install a 1, 400 kilometer ( 875 mile ) synchronous digital hierarchy, or SDH, microwave transmission system linking the main towns and cities of Hebei, NEC said in a statement.
