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Dynamic Range In a transmission system, the ratio of the overload level to the noise level of the system, usually expressed in dB. Ratio of the highest to lowest detectable signal of a system, expressed in dB.
POS Packet over SONET/SDH (POS), is a communications protocol for transmitting packets in the form of the Point to Point Protocol (PPP) over SDH or SONET, which are both standard protocols for communicating digital information using lasers or light emitting diodes (LEDs) over optical fibre at high line rates.
TDMA: Time Division Multiple Access Time Division Multiple Access (TDMA) is a method of sharing a communications carrier by assigning separate time slots to individual users. A channel is defined by a carrier frequency and time slot.
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