Altec Analog Socket Modem AL2094S - Manual (Page 3)

AL2094S Designers Guide
Doc. No. DG_2094A Altec Electronic AG Seite 3 / 30
Table of Contents
1. INTRODUCTION ..........................................................................................................5
1.1 Overview.......................................................................................................................5
1.2 FEATURES ..................................................................................................................6
1.2.1 General Modem Features.........................................................................................6
1.2.2 SmartDAA Features .................................................................................................6
1.3 TECHNICAL OVERVIEW.............................................................................................7
1.3.1 General Description ..............................................................................................7
1.3.2 MCU Firmware......................................................................................................7
1.3.3 Operating Modes ..................................................................................................7
1.3.4 V.44 Data Compression........................................................................................7
1.3.5 Synchronous Access Mode (SAM) - Video Conferencing ....................................8
1.3.6 Worldwide Operation ............................................................................................8
2. Technical Specifications ...............................................................................................9
2.1 Serial DTE Interface Operation ....................................................................................9
2.1.1 Automatic Speed/Format Sensing............................................................................9
2.2 Establishing Data Modem Connections........................................................................9
2.2.1 Telephone Number Directory....................................................................................9
2.2.2 Dialing.......................................................................................................................9
2.2.3 Modem Handshaking Protocol ...............................................................................10
2.2.4 Call Progress Tone Detection.................................................................................10
2.2.5 Answer Tone Detection ..........................................................................................10
2.2.6 Ring Detection ........................................................................................................10
2.2.7 Billing Protection.....................................................................................................10
2.2.8 Connection Speeds ................................................................................................10
2.2.9 Automode ...............................................................................................................10
2.3 Data Mode ..................................................................................................................11
2.3.1 Speed Buffering (Normal Mode) .............................................................................11
2.3.2 Flow Control ...........................................................................................................11
2.3.3 Escape Sequence Detection ..................................................................................11
2.3.4 BREAK Detection ...................................................................................................11
2.3.5 Telephone Line Monitoring .....................................................................................11
2.3.6 Fall Forward/Fallback (V.90/V.34/V.32 bis/V.32)....................................................11
2.3.7 Retrain ....................................................................................................................11
2.3.8 Programmable Inactivity Timer...............................................................................11
2.3.9 DTE Signal Monitoring (Serial DTE Interface Only)................................................11
2.4 Modem-on-Hold..........................................................................................................12
2.5 Error Correction and Data Compression ....................................................................12
2.5.1 V.42 Error Correction..............................................................................................12
2.5.2 MNP 2-4 Error Correction.......................................................................................12
2.5.3 V.44 Data Compression .........................................................................................12
2.5.4 V.42 bis Data Compression....................................................................................12
2.5.5 MNP 5 Data Compression......................................................................................12
2.6 MNP 10 Data Throughput Enhancement ...................................................................12
2.7 Telephony
Extensions ................................................................................................13
2.7.1 Line In Use Detection .............................................................................................13
2.7.2 Extension Pickup Detection....................................................................................13
2.7.3 Remote Hangup Detection .....................................................................................13
2.8 Caller ID......................................................................................................................13
2.9 Worldwide Country Support........................................................................................13
2.10 Diagnostics .................................................................................................................14
Commanded Tests............................................................................................................14
2.11 Low Power Sleep Mode..............................................................................................14
3. Hardware Interface .....................................................................................................15
3.1 AL2094S Modem Hardware Pins and Signals ...........................................................15