Feature Highlights OTX board. PCMCIA card. 2 T1/E1/J1 interfaces. Software switchable between T1, E1, and J1. Supplied with two dongles (one for each T1/E1/J1 interface). Two on-board Digital Signal Processors (DSPs) TMS54C5410A with 160 MIPS processing power each. Software switchable line termination (High-impedance, 75 and 100/120 ohm) Dongles equipped with software-switchable 20dB signal amplifier and High-Impedance mode for Monitor applications. Support for all common T1/E1/J1 Frame Formats and Line Codes Standard DSP firmware supplied with OTX driver Single bit error simulation mode.