Altec AL2094S Series, Руководство дизайнера

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AL2094S Designers Guide
Doc. No. DG_2094E Altec Electronic AG Seite 6 / 30
1.2 FEATURES
1.2.1 General Modem Features
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Data modem
- QuickConnect and Modem-on-hold functions
- ITU-T V.92 , V.34 , V.32bis, V.32,
- V.22 bis, V.22, V.23, and V.21; Bell 212A and Bell 103
- V.250 and V.251 commands
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V.22 bis fast connect
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Data compression and error correction
- V.44 data compression
- V.42 bis and MNP 5 data compression
- V.42 LAPM and MNP 2-4 error correction
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Hardware-based modem controller
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Hardware-based digital signal processor (DSP)
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Worldwide operation
- Complies to TBR21 and other country requirements
- Caller ID detection for many countries
- Call progress, blacklisting
- Internal ROM includes default values for 29 countries
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Additional modified country profiles can be stored in internal SRAM
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Caller ID detect
- On-hook Caller ID detection
- Off-hook Call Waiting Caller ID detection during data mode in V.90, V.34,
V.32bis, and V.32
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Distinctive ring detect
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Built-in DTE interface
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Serial ITU-T V.24 (EIA/TIA-232-E) logical interface up to 115.2 kbps
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Direct mode (serial DTE interface)
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Flow control and speed buffering
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Automatic format/speed sensing
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Serial async/sync data
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+3.3V operation with +5V tolerant digital inputs
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Typical power use
- 220 mW (Normal Mode)
- 56 mW (Sleep Mode)
1.2.2 SmartDAA Features
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System side powered DAA operates under poor line current supply conditions
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Modem Wake-on-Ring
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Ring detection
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Line polarity reversal detection
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Line current loss detection
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Pulse dialing
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Line-in-use detection during on-hook operation
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Remote hang-up detection for efficient call termination
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Extension pickup detection
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Call waiting detection
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Digital PBX line protection
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Meets worldwide DC VI masks requirements