Abstract:
The invention relates to a network comprising at least one host device having an interface card connected to a backplane of said host device, wherein said interface card comprises at least one cage for receiving a pluggable module which performs a traffic management of data transported via at least one optical fibre connected to said pluggable module.
Abstract:
Disclosed is a method for transmitting a low-frequency signal over a data transmission link using a digital high bit-rate signal including the steps of creating a modulated digital high bit-rate signal the average power of which varies according to the low-frequency signal, supplying the modulated digital high bit-rate signal to a first end of the data transmission link, receiving the modulated digital high bit-rate signal at a second end of the data transmission link or at an intermediate node of the data transmission link, and detecting the low-frequency signal by low-pass filtering the received modulated digital high bit-rate signal. According to the invention, the variation of the average power of the modulated digital high bit-rate signal is effected by a variation of the density of “high” bits according to the low-frequency signal.
Abstract:
Provided are systems and methods for adaptive, error-tolerant pattern recognition in the transmission of digital data packets, in which an actual data pattern, including several bits, is detected and is compared with a theoretical data pattern; erroneous and/or correctly recognized bits are detected; erroneous and/or correctly recognized bits are added up (in each case); and the error sum (number of the errors) of the added-up erroneous bits is compared with a specifiable and changeable admissible maximum number of errors.
Abstract:
The invention relates to a data transmission unit for high bit-rate optical data signals, in particular, high bit-rate optical data signals with a backplane (3), which has a line structure connecting several (n) plug-in positions (5, 7, 9) for several (m) receiver or transceiver cards (11, 13, 15) to each other and/or to one or more additional data processing cards, with several receiver or transceiver cards (11, 13, 15), which are each held in one of the plug-in positions (5, 7, 9) and which each have at least one input port (11b, 13b, 15b) for a high bit-rate data signal.According to the invention, each of the receiver or transceiver cards has at least one output port, to which the relevant one or more high bit-rate data signals can be fed, and each of these output ports (5b, 7b, 9b) is connected via a serial data line (29, 31, 33) between the plug-in position (5, 7, 9) holding the relevant receiver or transceiver card (11, 13, 15) and an input port (23a) of a central selection unit (23) with the relevant input port (23a).In addition, each of these output ports is connected by means of a serial data line between the plug-in position holding the relevant receiver or transceiver card to the relevant input port, wherein the central selection unit (23) has an output port (23b) to which one of the high bit-rate data signals can be fed in a controllable way.
Abstract:
The invention relates to a data transmission unit for high bit-rate optical data signals, in particular, high bit-rate optical data signals with a backplane, which has a line structure connecting several plug-in positions for several receiver or transceiver cards to each other and/or to one or more additional data processing cards, with the cards, each held in one of the plug-in positions and each having at least one input port for a high bit-rate data signal. Each card also has at least one output port, to which the relevant one or more high bit-rate data signals can be fed, and each of these output ports is connected via a serial data line between the plug-in position holding the relevant receiver or transceiver card and an input port of a central selection unit with the relevant input port. The output ports connect serially to the central selection unit.
Abstract:
Disclosed is a method for transmitting a low-frequency signal over a data transmission link using a digital high bit-rate signal including the steps of creating a modulated digital high bit-rate signal the average power of which varies according to the low-frequency signal, supplying the modulated digital high bit-rate signal to a first end of the data transmission link, receiving the modulated digital high bit-rate signal at a second end of the data transmission link or at an intermediate node of the data transmission link, and detecting the low-frequency signal by low-pass filtering the received modulated digital high bit-rate signal. According to the invention, the variation of the average power of the modulated digital high bit-rate signal is effected by a variation of the density of “high” bits according to the low-frequency signal.
Abstract:
Provided are systems and methods for adaptive, error-tolerant pattern recognition in the transmission of digital data packets, in which an actual data pattern, including several bits, is detected and is compared with a theoretical data pattern; erroneous and/or correctly recognized bits are detected; erroneous and/or correctly recognized bits are added up (in each case); and the error sum (number of the errors) of the added-up erroneous bits is compared with a specifiable and changeable admissible maximum number of errors.
Abstract:
The invention relates to a network comprising at least one host device having an interface card connected to a backplane of said host device, wherein said interface card comprises at least one cage for receiving a pluggable module which performs a traffic management of data transported via at least one optical fiber connected to said pluggable module.