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Integrated PCM Filter Codec
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ISO-CMOS ST-BUS™ FAMILY T1 Performance Monitoring Adjunct Circuit (PMAC)
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ISO2-CMOS ST-BUS™ FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit
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ISO-CMOS ST-BUS™ FAMILY T1/ESF Framer Circuit (ACCUNET® T1.5)
