ISDN- LS 4 ports two ways digital voice up to 256 Kbits/S TECHNICAL SPECIFICATION: • Number of Channels:4 • Max Boards/System:8 Number may be limited by system performance and slots • Analog interface: Onboard HiZ interface • Digital signal processors: One Motorola DSP563xx @100MHz, one with 384 Kbytes private, 0 wait state SRAM HOST ITERFACE:  • Bus compatibility: IEEE P996 ISA compatible (IBM PC AT) • Bus speed:8 MHz typical • Bus mode: 16-bit transfer mode • Shared memory: 32KByte page base addresses C000h to E800h, on 32K boundaries. All boards share the same base address. Shared memory is page mapped in/out dynamically as needed. • I/O ports: None • Interrupt Request: None  POWER REQUIREMENTS: • +5V DC: 1.0 A max • -5V DC:100 mA max • operating temperature: 0C to +50C • storage temperature:-20C to +70C • Humidity:8% to 80% non-condensing TELEPHONE INTERFACE: • Speech digitization: 64 KBite/s, μ-law PCM (companding to ADPCM performed in Spring Ware) • Connectors: RJ11*2

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