- 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.
The purpose of the nervous system is to transfer information from the PNS to the CNS, process the information in the CNS, and send back information to the PNS. This transfer of information from the external environment, through neurons, and back again to the external environment is known as neuronal signaling.A summary of neuronal signaling: Before a neuron receives a signal, it is in a resting state Neurons receive signals in two forms: Chemical changes.This is done via neurotransmitters (see Synaptic Transmission below) or chemical elements in the environment (e.g., olfactory receptors) Physical changes.his transfer of information from the external environment, through neurons, and back again to the external environment is known as neuronal signaling.