Simplex signaling (SX): Signaling in which two conductors are used for a single channel, and a center-tapped coil, or its equivalent, is used to split the signaling current equally between the two conductors.
Note: SX signaling may be one-way, for intra-central-office use, or the simplex legs may be connected to form full duplex signaling circuits that function like composite (CX) signaling circuits with E & M lead control.
Simplexsignaling - definition of Simplexsignaling in Encyclopedia
Simplexsignaling (SX): Signaling in which two conductors are used for a single channel, and a center-tapped coil, or its equivalent, is used to split the signaling current equally between the two conductors.
Note: SX signaling may be one-way, for intra-central-office use, or the simplex legs may be connected to form full duplex signaling circuits that function like composite (CX) signaling circuits with E and M lead control.
Simplex provides the highest signal quality since the path between driver and receiver is uncomplicated.
Simplex architectures are also a better choice when the speed of an interface gets above a few hundred megabits per second.
When considering signaling rate for devices, it's important to note that a maximum signaling rate may often be featured based on a minimally acceptable parametric quality, such as output voltage, transition time, or jitter.
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