VP-894S四線計(jì)算機(jī)語音卡
2003/01/03

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電 氣 特 性
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規(guī) 格
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On-board CPU
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Intel 8088
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On-board Buffer
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256Kbyte DRAM
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Shared Buffer
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32Kbyte SRAM
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Voice Digitization
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μ-Law PCM with Compression
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Voice Data Rate
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4.9K-16Kbits/sec
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Voice DSP
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DALLAS 2132A
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Bus Structure
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≧8Mhz,8 bits
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Interrupt Level
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one for all ports
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I/O Address
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fixed
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Max.Boards/System
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16
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Phone Interface
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analog
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Start Method
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loop start
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Connector
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4×RJ11
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Impedance
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600Ω / 900Ω
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Frequency Response
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300-3.4khz @16kbps
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Ring Detection
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40-130Vms,15-68Hz
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Loop Current
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20-120ma
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Local Phone Leads
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Equipped
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Outbound Dialing
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DTMF&Pulse
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Inbound Reception
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DTMF&Pulse
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Crosstalk
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<50dB
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CPM Detection
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Yes
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Internal Bridging
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Adjacent Channels
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Power Requirement
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±5Vdc
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Operating Temperature
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0°Cto +50°C
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Storage Temperature
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-10°Cto +60°C
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Humidity
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10%to 80%non-condensing
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Certifications
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CE,FCC&BZT
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