VP-894S四線計算機語音卡
2003/01/03
電 氣 特 性
|
規(guī) 格
|
On-board CPU
|
Intel 8088
|
On-board Buffer
|
256Kbyte DRAM
|
Shared Buffer
|
32Kbyte SRAM
|
Voice Digitization
|
μ-Law PCM with Compression
|
Voice Data Rate
|
4.9K-16Kbits/sec
|
Voice DSP
|
DALLAS 2132A
|
Bus Structure
|
≧8Mhz,8 bits
|
Interrupt Level
|
one for all ports
|
I/O Address
|
fixed
|
Max.Boards/System
|
16
|
Phone Interface
|
analog
|
Start Method
|
loop start
|
Connector
|
4×RJ11
|
Impedance
|
600Ω / 900Ω
|
Frequency Response
|
300-3.4khz @16kbps
|
Ring Detection
|
40-130Vms,15-68Hz
|
Loop Current
|
20-120ma
|
Local Phone Leads
|
Equipped
|
Outbound Dialing
|
DTMF&Pulse
|
Inbound Reception
|
DTMF&Pulse
|
Crosstalk
|
<50dB
|
CPM Detection
|
Yes
|
Internal Bridging
|
Adjacent Channels
|
Power Requirement
|
±5Vdc
|
Operating Temperature
|
0°Cto +50°C
|
Storage Temperature
|
-10°Cto +60°C
|
Humidity
|
10%to 80%non-condensing
|
Certifications
|
CE,FCC&BZT
|
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