Tazarv Afzar Co.

TSV4-LS
4 channels analog voice logging board

TECHNICAL SPECIFICATION:
• Number of channels :4
• Max Boards/System: 8. number may limited by system performance and slots.
• Analog interface: Onboard Hiz interface
• Digital signal processors: One Texas Ins. TMS320C25 @10 MHz, with 256 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: 32Kbytes page Base addresses C000h to E800h, on 32 K 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:
• DTMF Digits: 0 to 9, #, A,B,C,D per Bell core LSSGR Sec 6 Dynamic range -36 dbm to +3 dbm per tone
• Minimum tone duration : 40 ms , can be increased with software configuration
• Interdigit timing Detects: like digits with a> 40ms inter digit delay Different digits with a > 0ms interdigit delay

TONE DETECTION:
• DTMF Digits: 0 to 9, #, A,B,C,D per Bell core LSSGR Sec 6 Dynamic range -36dbm to +3dbm per tone
• Minimum tone duration : 40 ms , can be increased with software configuration
• Interdigit timing Detects: like digits with a> 40ms inter digit delay

TELEPHONE INTERFACE:
• Trunk type : HiZ analog interface impedance >20 K Ohm
• Ring detection: 40 to 130 Vrms
• SNR: -40 dB Cross talk coupling -70 dB
• Speech digitization : 64 Kb/s, -law PCM (companding to ADPCM performed in spring ware)
• Freq.response:300 to 3400 Hz ±3 dB
• Connector : Rj11* 2

Pulse DETECTION
• 10 pps : 0 to 9

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