Nortel Networks NT2X59CA overview
Nortel Networks NT2X59CA DMS-100 NT2X59CA CODEC Module The NT2X59CA codes pulse amplitude modulation (PAM) signals in to pulse code modulation (PCM). The NT2X59...
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Manufactured byNortel Networks
Product groupAccessories
DescriptionNortel Networks NT2X59CA DMS-100 NT2X59CA CODEC Module
Product DescriptionThe NT2X59CA codes pulse amplitude modulation (PAM) signals in to pulse code modulation (PCM). The NT2X59CA decodes PCM signals in to PAM signals. The card produces PCM tones for signaling and supervision purposes.
LocationThe card occupies one card position in a DMS-100/200 peripheral module (PM). Examples of a PM include a maintenance trunk module (MTM), a remote service module (RSM) or a trunk module (TM).
Functional DescriptionThe NT2X59CA sends PCM signals over the C-bus. The NT2X59CA decodes the PCM signals into PAM data. The NT2X59CA sends the PAM data to the trunk circuits over the receive-PAM (RPAM) bus. The trunk circuits send the PAM signals over the transmit-PAM (XPAM) bus. The NT2X59CA encodes the PAM signals into PCM. The NT2X59CA sends the PAM signals over the C-bus. The card generates standard digital tones for supervision or signaling. The NT2X59CA inserts the tones into an output channel. The operation of the card is synchronized with the system clock signal.
Functional BlocksThe NT2X59CA contains the following functional blocks: PAM gate two 16-channel encoders digital multiplexer (MUX) 32-channel decoder sequencer sign bit delay digital tone generator reference current circuit reference voltage circuit
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