Both ends of the bus, whether it includes one coupler or a series of couplers connected together, must be terminated (in accordance with MIL-STD-1553B) with "a resistance, equal to the selected cable nominal characteristic impedance (Zo) ± 2.0 percent."
总线的两端，无论是包括一个耦合器还是一系列连接在一起的耦合器，都必须端接（根据MIL-STD-1553B）“一个电阻，等于所选电缆标称特性阻抗（Zo）±2.0％”。