Feature Highlights 2 T1/E1/J1 interfaces. Software switchable between all modes High-impedance mode for monitor applications Signal amplifiers for attenuated T1/E1/J1 monitor conditions (-20dB or -30dB) ExpressCard/54 bus interface Onboard DSP with 400 MIPS processing power 32-bit DMA burst data transfer for efficient data transfer of T1/E1/J1 bit-data DSP-based support for HDLC encoding/decoding DSP-based support for tone generation and tone detection (e.g. DTMF, MF, and custom tones) Support for custom DSP applications