Am I the only person confused by the review in this issue of the DCC Concepts ground signals? They are described as 2, 3 or 4 aspect, but surely they should be called 2-aspect, as they can only display one of two options, even although each signal may have 3 or 4 lights? But more serious is the assertion that they are wired to points to mimic them, and are not a set of signals to be switched independently. That is just wrong as each signal can also be controlled separately by having a unique DCC address. The review also says that the mimic panel needs to be accessible to change an address, but that is only for setting up, not for routine use. Of course, the mimic panel does need to be on show if used for the original purpose of forming the basis of a mimic control panel, but that is not the the primary purpose when used with the ground signals. And finally, the review does not explicitly mention that these signals are good value for money, at around £8 each.
I have no relationship with DCC Concepts, except as a satisfied customer, but this review does them no favours.
Mike B