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Dialogic Dialog/4 4Port ISA Telephony Voice Processing Interface Card, US $660 – Picture 0
Dialogic Dialog/4 4Port ISA Telephony Voice Processing Interface Card, US $660 – Picture 0

Dialogic Dialog/4 4port Isa Telephony Voice Processing Interface Card

US $660

  • Fishkill, New York, United States
  • May 27th
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Never used but not factory sealed. STILL IN ORIGINAL PACKAGING.  No software or drivers included. Dialogic® DIALOG/4 is a four-port voice board in a half-size ISA form factor that is ideal for the small/medium business (SMB) market segment. The DIALOG/4 has downloadable signal and call processing firmware that facilitates feature enhancement and helps developers build systems that scale from four to 64 ports. Technical Specifications                       Number of ports Four   Max. boards/system 16     Analog network interface Onboard loop start interface circuits   Microprocessor 80C188   Digital signal processor Motorola* DSP56001             Host Interface         Bus compatibility IBM PC XT/AT (ISA)   Bus speed 4 MHz to 12 MHz, 70 nsec back-to-back bus cycle   Shared memory 8 KB page, switch selectable on 8 KB boundaries   Base addresses D000h (default)     A000h     C000h   Interrupt level IRQ 2 to IRQ 7 jumper selectable     One IRQ is shared by all DIALOG/4 boards             Telephone Interface†         Trunk type Loop start (or ground start for answer only)   Impedance 600 Ohms nominal   Ring detection 25 Vrms minimum     15.3 Hz to 68 Hz, 150 Vrms maximum   Loop current range 20 mA to 120 mA, DC (polarity insensitive)   Receive signal/noise ratio 70 dB, referenced to –15 dBm   Crosstalk coupling –70 dB at 1 kHz channel to channel   Frequency response 300 Hz to 3400 Hz ±3 dB (transmit and receive)   Connector Two RJ-11 type             Power Requirements         +5 VDC .75 A   +12 VDC 40 mA   –12 VDC 40 mA   Operating temperature 0°C to +50°C   Storage temperature –20°C to +70°C   Humidity 8% to 80% noncondensing   Form factor PC XT (ISA)     7 in. long (17.5 cm)     0.652 in. wide (1.63 cm)     4.5 in. high (11.25 cm) (excluding edge connector)            

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