- Speed: Most say cable is faster than DSL, but it doesn't always win in real-world use-Security: Different security models, but both offer adequate security that meets the needs of most users-Popularity: Cable is more popular but DSL is catching up-Customer Satisfaction: DSL customers are happier.TM is the Data Link layer protocol typically used over the DSL layer 1 connection from the CPE that's terminated at the DSLAM. After that, the DSLAM switches the data over an ATM network to an aggregation router, a layer 3 device where the subscriber's IP connection then expires.
A neural signal is another way of characterizing the electrochemical message that neurons send to each other. When a neuron receives sufficient stimulation in the form of EPSPs, voltage-gated ion channels open, and a signal is sent down the axon to the axon terminal. That is the electrical part of the message.
Key points. 1  Neurons communicate with one another at junctions called synapses. At a synapse, one neuron sends a message to a target neuronâanother cell. 2  Most synapses are chemical; these synapses communicate using chemical messengers. Other synapses are electrical; in these synapses, ions flow directly between cells.