Single pair communications are invaluable in industrial applications - almost all of our scenarios involve the restriction of not being able to run new cable. The costs involved in running new cables can be eye watering to say the least. If you're on a greenfield project, then there are surely better solutions since you have the luxury of designing the cable runs.
VDSL has been king in the areas I work in for quite a few years now and has been very reliable. We are experimenting with SPE and it's looking positive with the biggest benefit being cost. SPE for us is a significant cost down that will allow us to design it into more products where VDSL blew the BOM budget. We'll still use VDSL when we need higher bandwidth but only have that single copper pair.
SPE fills a gap where you need a decent amount of bandwidth at a reasonable distance for a low price. For us it complements modbus, standard ethernet, vdsl etc.
SPE is also very new with the chipsets really only starting to become available in the last 12 months or so. Chip shortages aren't helping but expect to start seeing these solutions pop up all over the place.
VDSL has been king in the areas I work in for quite a few years now and has been very reliable. We are experimenting with SPE and it's looking positive with the biggest benefit being cost. SPE for us is a significant cost down that will allow us to design it into more products where VDSL blew the BOM budget. We'll still use VDSL when we need higher bandwidth but only have that single copper pair.
SPE fills a gap where you need a decent amount of bandwidth at a reasonable distance for a low price. For us it complements modbus, standard ethernet, vdsl etc.
SPE is also very new with the chipsets really only starting to become available in the last 12 months or so. Chip shortages aren't helping but expect to start seeing these solutions pop up all over the place.