Fungsi: Subscriber Line Interface Concept (SLIC), Antara muka: SPI, Bilangan Litar: 1, Voltan - Bekalan: 3.13V ~ 5.25V, Semasa - Bekalan: 88mA, Kuasa (Watt): 700mW,
Fungsi: Framer, Line Interface Unit (LIU), Antara muka: E1, HDLC, J1, T1, Bilangan Litar: 1, Voltan - Bekalan: 1.8V, 3.3V, Semasa - Bekalan: 80mA, Kuasa (Watt): 250mW,