and ce the terminal ca appears twice as these signals are identical but are passed through the circuit board in two different places physically on the actual device signals are bidirectionally input to the attenuator at either end via leads 50 or 52 lead 50 is connected to an inductance 54 and to pin diodes 56 and 58 diode 58 is connected through a capacitor 60 to a 15 db attenuation pad generally designated as 62 and from there through a capacitor 64 and some undesignated inductances to logic input cc a pin diode 66 is connected between capacitor 64 and ground 68 logic input cc is also connected via a capacitor 70 to a further pair of pin diodes 72 ano 74 the other end of pin diode 72 is connected to binary logic control ce and also through a capacitor to a 15 db attenuation device generally designated as 76 the other end of diode 74 is connected to a further pin diode 78 and also connected to a logic level input cd logic level input cd is further connected to pin diodes 8c and 82 an input ce is also connected to further pin diodes such as 84 86 and 88 a third 15 db attenuation pad generally designated as 90 is connected between anode ends of the.