An electrical terminal block including a mating face and a loading surface that are spaced apart from each other along a longitudinal axis. The system for LED’s total luminous flux measurement with a narrow beam standard light source in this invention comprises an integrating sphere, the light source, a narrow aperture fiber, a spectrometer and a driver for the light source. The GW or the PCRF in the QoS resource reservation selects a first access as present access. In some aspects, beacon transmit power may be set based on a defined outage radius parameter and the total received signal power on a channel.