Safeguard of a supply voltage

A load module for a bus system, comprising:

• a first DC voltage load,
• a terminal for a data cable,
• wherein the terminal comprises a first and a second contact,
• wherein the first DC voltage load is connected to the first and second contacts via a first inductive assembly, such that the first DC voltage load may be supplied by a first electrical DC voltage applied to the first and second contacts,
• a physical interface for receiving a first differential data signal,
• wherein the physical interface is connected to the first and the second contacts via a first transformer and a first capacitive assembly, in order to receive a first differential data signal applied to the first contact and to the second contact,
• wherein a fuse is respectively connected between the first DC voltage load and at least the first contact and/or the second contact, and
• wherein a bridging capacitor is provided in parallel with the fuse to bridge the fuse when the fuse having been triggered.

A data cable for a bus system, comprising:

• a first connector part comprising a first contact and a second contact, and
• a second connector part comprising a first contact and a second contact,
• wherein the first contact of the first connector part is electrically conductively connected to the first contact of the second connector part by a first electrical conductor,
• wherein the second contact of the first connector part is electrically conductively connected to the second contact of the second connector part by a second electrical conductor,
• wherein a fuse is respectively connected between the first contact of the first connector part and the first contact of the second connector part and/or between the second contact of the first connector part and the second contact of the second connector part, and
• wherein a bridging capacitor is provided in parallel with the fuse to bridge the fuse when having been triggered.

A bus system, comprising:

• a feed module, having a first DC voltage source,
• a terminal for a data cable,
• wherein the terminal comprises a first and a second contact,
• wherein the first DC voltage source is connected to the first and second contacts via a first inductive assembly, such that a first electrical DC voltage can be applied to the first and second contacts by the first DC voltage source,
• a physical interface for providing a first differential data signal,
• wherein the physical interface is connected to the first and second contacts via a first transformer and a first capacitive assembly, in order to apply a first differential data signal to the first contact and to the second contact,
• a load module, having a first DC voltage load,
• a terminal for a data cable,
• wherein the terminal comprises a first and a second contact,
• wherein the first DC voltage load is connected to the first and second contacts via a first inductive assembly, such that the first DC voltage load may be supplied by a first electrical DC voltage applied to the first and second contacts,
• a physical interface for receiving a first differential data signal,
• wherein the physical interface is connected to the first and the second contacts via a first transformer and a first capacitive assembly, in order to receive a first differential data signal applied to the first contact and to the second contact,
• a data cable connecting the feed module to the load module,
• a first connector part comprising a first contact and a second contact, and
• a second connector part comprising a first contact and a second contact,
• wherein the first contact of the first connector part is electrically conductively connected to the first contact of the second connector part by a first electrical conductor,
• wherein the second contact of the first connector part is electrically conductively connected to the second contact of the second connector part by a second electrical conductor,
• wherein, in the feed module, a fuse is respectively connected between the first DC voltage source and at least the first contact and/or the second contact in any of the feed module and the load module, and/or
• wherein, in the load module, a fuse is respectively connected between the first DC voltage load and at least the first contact and/or the second contact in any of the feed module and the load module, and/or
• wherein, in the data cable, a fuse is respectively connected between the first contact of the first connector part and the first contact of the second connector part and/or between the second contact of the first connector part and the second contact of the second connector part in the data cable, and
• wherein a bridging capacitor is provided in parallel with one of the respective fuse(s) to bridge the fuse(s) when the fuse(s) having been triggered.