Folate and CancerTiming Is Everything

In a device for the transmission, by an asynchronous network, notably a network of the ATM type, of signalling data elements, channel by channel, assembled in a multiframe transmitted synchronously in out-of-band mode, the information elements are conveyed, in the asynchronous network, in packets of data bits, each, packet being formed by an information cell including, firstly, a header carrying an address and, secondly, a useful field carrying the information to be transmitted. On a transmission side, the device includes an apparatus for acquiring signalling data elements of each channel of the multiframe; a device to detect changes in the state of these data elements; and a device for the generation, on the network, at each change thus detected, of an information cell containing the new signalling data element and the address associated with the corresponding channel. On a reception side, the device includes an apparatus for acquiring, from the network, the information cells containing signalling data elements; a device to memorize these signalling data elements between each corresponding change in state; and a device to insert the data elements thus memorized into a multiframe and to transmit this multiframe synchronously in an out-of-band mode.