AU4

AcronymDefinition
AU4Area Under pH 4
References in periodicals archive ?
The Mini-Mux 840 builds upon the extensive Charles multiplexer portfolio, which includes the Exchange Mux I (Transmux), Exchange Mux II (T1/E1 to T3, STS-1, AU3, AU4, OC-3 or STM-1), Mini-Mux 155 (T3 or STS-1 to OC-3 or STM-1), Mini-Mux 210 (E1 M13), and Mini-Mux 280 (T1 M13).
Virtual concatenation can enable the grouping of any number of STS1 or AU4 channels which can be resized as needed, allowing service providers the flexibility of supplying required bandwidth on demand.