1180214L2 - For use in Total Access 1500 integrated access devices. Provides two independent 2-wire Voice Frequency (VF) channels. Nominal 600 ohms or 900 ohms (+2.16 mF). 2-wire VF interface with DC isolation. FXS Loop and Ground Start, DPO, Tandem, PLAR D3, PLAR D4 and FX Ringdown operating modes. CLASS compatible (Caller ID, Forward Disconnect, and Distinctive Ringing TR 57 compliant). Up to 6 dB of single-ended gain transfer. Extended operating temperature range from -40°C to +65°C. Backplane PCM voice interface.