By definition, a segment is any equipment being electrically connected together.
In this case a segment is a collection of TP1 devices that are electrically connected together.
The maximum capacity (= number of devices that can be connected) of a TP1 segment depends on the type of TP1 devices that are used, TP1-64 and/or TP1-256:
- TP1-64: 64 simply means that maximum 64 devices of this type can be connected together
- TP1-256: maximum 256 devices of this type can be connected together
- mixture: TP1-64 and TP1-256 devices can also be connected together in the same segment, the maximum number of devices (per segment) in such case depends on the proportion of TP1-64 and TP1-256 devices
In order to set up a TP1 segment a PSU and a TP1 choke is required.