Dialogic D/300SC-2E1
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Dialogic D/300SC-2E1Bookmark The Dialogic D/300SC-2E1
The DualSpan™ Series of digital voice and network interface boards provide two E-1 or T-1 ISDN Primary Rate Interface lines of service termination and call processing for 30 or 60 voice channels (E-1 boards) or 24 or 48 channels (T-1 boards) in a single PC slot. Functionally, the DualSpan boards are equivalent to two single-span boards, such as the D/300SC-E1 or D/240SC-T1, combined into one single-slot ISA board. A unique multiprocessor architecture comprising digital signal processors (DSPs) and general purpose microprocessors handles all telephony signaling and performs all DTMF, MF, and audio/voice signal processing tasks. The DualSpan boards, as members of the DIALOG/HD™ High Density Voice and Switching Products Series, are based upon Signal Computing System Architecture™ (SCSA™). SCSA provides an open architecture that enables developers to use products from multiple vendors to build a unified computer telephony solution. SCSA provides features such as distributed switching, logical addressing, and location independent resource management. Downloaded firmware algorithms, SpringWare™, executed by the on-board DSPs, provide variable voice coding at 24 and 32 Kb/s ADPCM, and 48 and 64 Kb/s. Sampling rates and coding methods are selectable on a channel-by-channel basis. Applications can dynamically switch sampling rate and coding method to optimize data storage or voice quality as the need arises. SpringWare firmware also provides reliable DTMF detection, DTMF cut-through, and talk off/play off suppression over a wide variety of telephone line conditions.
80386, 80486, or Pentium IBM PC AT (ISA) bus or compatible computer Operating system hardware requirements vary according to the number of channels being used Recommend cooling fan specifications of 6 CFM minimum per slot for D/600SC-2E1 and D/480SC-2T1 models |
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