This is a read-only count, from 1 to 15, of how many bypass relays are currently active on the splitter, capped by the agent to control power consumption. Admins monitor this to understand current power draw and to know how close the device is to its self-imposed relay-activation limit. For instance, seeing this value already at its maximum would tell an admin that additional relay-activation requests may be refused until an active relay times out or is reset.