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Summary of Contents for Altec AL2094S Series
- Page 1 AL2094S Designers Guide Analog Socket Modem AL2094S Series Designer’s Guide RELEASED 2. SEPTEMBER 2005 Doc. No. DG_2094A Altec Electronic AG 1 / 30...
- Page 2 No license is granted by implication or otherwise under any patent rights of Altec Electronic other than for circuitry embodied in Altec products. Altec Electronic reserves the right to change circuitry at any time without notice.
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Page 3: Table Of Contents
2.7.3 Remote Hangup Detection ..................13 Caller ID........................13 Worldwide Country Support..................13 2.10 Diagnostics .........................14 Commanded Tests......................14 2.11 Low Power Sleep Mode....................14 Hardware Interface .....................15 AL2094S Modem Hardware Pins and Signals ............15 Doc. No. DG_2094A Altec Electronic AG Seite 3 / 30... - Page 4 Call Progress Speaker Interface ..............15 3.1.3 Serial DTE Interface and Indicator Outputs ..........15 3.1.4 External Reset Input ...................15 3.1.5 AL2094S Modem Pin Assignments and Signal Definitions ........15 Electrical and Environmental Specifications...............19 3.3.1 Operating Conditions, Maximum Ratings, Power Requirements......19 3.3.2 Interface and Timing Waveforms................20 3.3.2.1 Serial DTE Interface................20...
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Page 5: Introduction
AL2094S Designers Guide Overview Altec’s AL2094S Socket Modem Family provides the OEM with a complete V.92, V.34 and V.32bis data/fax/voice modem in a compact socket-mountable DIL-40 module. This designer's guide describes the modem hardware. AT commands and S registers are defined in the AT Command Reference Manual. -
Page 6: Features
AL2094S Designers Guide FEATURES 1.2.1 General Modem Features • 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 • V.22 bis fast connect •... -
Page 7: Technical Overview
AL2094S Designers Guide TECHNICAL OVERVIEW 1.3.1 General Description Modem operation, including dialing, call progress, telephone line interface, telephone handset interface, and host DTE interface functions are supported and controlled through the V.250, V.251, and V.253-compatible command set. 1.3.2 MCU Firmware MCU firmware performs processing of general modem control, command sets, data modem, error correction and data compression (ECC), fax class 1, fax class 1.0, voice/audio/TAM,... -
Page 8: Synchronous Access Mode (Sam) - Video Conferencing
AL2094S Designers Guide 1.3.5 Synchronous Access Mode (SAM) - Video Conferencing V.80 Synchronous Access Mode between the modem and the host/DTE is provided for host- controlled communication protocols, e.g., H.324 video conferencing applications. Voice-call- first (VCF) before switching to a videophone call is also supported. -
Page 9: Technical Specifications
AL2094S Designers Guide Serial DTE Interface Operation 2.1.1 Automatic Speed/Format Sensing Command Mode and Data Modem Mode. The modem can automatically determine the speed and format of the data sent from the DTE. The modem can sense speeds of 300, 600,... -
Page 10: Modem Handshaking Protocol
AL2094S Designers Guide 2.2.3 Modem Handshaking Protocol If a tone is not detected within the time specified in the S7 register after the last digit is dialed, the modem aborts the call attempt. 2.2.4 Call Progress Tone Detection Ringback, equipment busy, congested tone, warble tone, and progress tones can be detected in accordance with the applicable standard. -
Page 11: Data Mode
AL2094S Designers Guide Data Mode Data mode exists when a telephone line connection has been established between modems and all handshaking has been completed. 2.3.1 Speed Buffering (Normal Mode) Speed buffering allows a DTE to send data to, and receive data from, a modem at a speed different than the line speed. -
Page 12: Modem-On-Hold
AL2094S Designers Guide Modem-on-Hold The Modem-on-Hold (MOH) function (V.92 models only) enables the modem to place a data call to the Internet on hold while using the same line to accept an incoming or place an outgoing voice call. This feature is available only with a connection to a server supporting MOH. -
Page 13: Telephony Extensions
AL2094S Designers Guide Telephony Extensions The following telephony extension features are supported and can be typically be implemented in designs for set-top box applications and TAM software applications to enhance end-user experience: • Line In Use detection • Extension Pickup detection •... -
Page 14: Diagnostics
AL2094S Designers Guide • Calling tone is generated in accordance with V.25. Calling tone may be toggled (enabled/disabled) by inclusion of a “^” character in a dial string. It may also be disabled. • Frequency and cadence of tones for busy, ringback, congested, warble, dial tone 1, and dial tone 2. -
Page 15: Hardware Interface
3.1.5 AL2094S Modem Pin Assignments and Signal Definitions AL2094S Modem DIL-40 hardware interface signals are shown by major interface in Figure 3-1, are shown by pin number in Figure 3-2, and are listed by pin number in Table 1-1. AL20XX Modem hardware interface signals are defined in Table 3-2. -
Page 16: Al2094S Modem Hardware Signals
AL2094S Designers Guide 3-1. AL2094S M IGURE ODEM ARDWARE IGNALS VCC1 VCC2 RESET SPKOUT TDCLK RDCLK RING Table 3-1. AL2094S Modem DIL-40 Pin Signals Pin No NAME Pin No NAME VCC1 VCC2 EXTRESET DSR/DCD DSPKOUT TDCLK RDCLK 10 …18 No pin 31…... -
Page 17: Table 3-2. Signal Descriptions
AL2094S Designers Guide Table 3-2. Signal Descriptions Label I/O Type Signal Name/Description Digital Supply Voltage. Connect to VCC (+3.3V, filtered). Digital Ground. Connect to digital ground (GND). Reset. . Open collector input/output. Drive only with open- collector circuit. The active low RESET# input resets the Modem logic and clears the internal SRAM. -
Page 18: Table 3-3. Signal Descriptions (Cont'd)
TXCLK Itpu/Ot2 frequency is the data rate (±0.01%) with a duty cycle of 50±1%. Leave open if not used. Table 3-4. AL2094S Modem I/O Type Definitions I/O Type Description It/Ot2 Digital input, +5V tolerant/ Digital output, 2 mA, ZINT = 120 Ω... -
Page 19: Electrical And Environmental Specifications
AL2094S Designers Guide Electrical and Environmental Specifications 3.3.1 Operating Conditions, Maximum Ratings, Power Requirements. The operating conditions are specified in Table 3-9. The absolute maximum ratings are listed in Table 3-10. The current and power requirements are listed in Table 3-11. -
Page 20: Interface And Timing Waveforms
AL2094S Designers Guide 3.3.2 Interface and Timing Waveforms 3.3.2.1 Serial DTE Interface The serial DTE interface waveforms for 4800 and 9600 bps are illustrated in Figure 3-5. 3-5. W DTE I IGURE AVEFORMS ERIAL NTERFACE Doc. No. DG_2094E Altec Electronic AG... -
Page 21: Daa Interface
AL2094S Designers Guide DAA Interface The Socket Modem is configured to be an on-board DAA (World Class DAA). Provide TIP and RING signals from the telco jack to pins 20 and 21 of the Socket Modem. Only EMI suppression and surge protection components may be used. If other components are used, the PTT certification for these Socket Modems will no longer apply, and recertification will be required. -
Page 22: Table 3-7. Daa Part List
AL2094S Designers Guide 1000PF X2/Y3 TS250-130 TVB270SC SOCKET MODEM RJ11 1000PF X2/Y3 Note: Meets ITU-T K.21 Surge Requirements 3-4. R IGURE ECOMMENDED ELEPHONE NTERFACE FOR ORLD CLASS SOCKET MODEM The common mode choke L1 is optional in both Figures 3.3 and 3.4 and it’s need depends on the characteristics of the target hardware. -
Page 23: Design Considerations
AL2094S Designers Guide Good engineering practices must be adhered to when designing a printed circuit board (PCB) containing the Socket Modem module. Suppression of noise is essential to the proper operation and performance of the modem itself and for surrounding equipment. -
Page 24: Electromagnetic Interference (Emi) Considerations
LED interface pins are all conveniently arranged, easing the host board layout design. Altec Electronic has tested each of the SocketModems for compliance with their respective country’s PTT requirements and has received PTT certificates that cover, without additional expense to the user, all applications that use these Socket Modems in their respective countries. -
Page 25: Manufacturing Considerations
AL2094S Designers Guide Manufacturing Considerations The Socket Modem has been designed to be mounted onto the host board in one of two ways. The first method consists of soldering a DIP-40 socket to the host board and inserting the Socket Modem into the socket. -
Page 26: Package Dimensions
AL2094S Designers Guide Package Dimensions are shown in Figure 5-1. Bottom View 53 mm 20.3 mm 1,6mm 3,5 mm ∅ 0.5mm 4,8 mm 2,54mm 3,4mm Figure 5-1. AL2094S Socket Modem Physical Dimensions Doc. No. DG_2094E Altec Electronic AG Seite 26 / 30... -
Page 27: Socket Modem Approvals
AL2094S Designers Guide The Socket Modem module is approved as a host-independent modem card. To maintain type approvals, permits and/or licenses valid, the guidelines described in this document must be followed. Considerations for Telecom Approvals The Socket Modem has been assessed and has been found to comply with the relevant harmonized standards as defined by the European ETSI Directive (ETSI TC-TE). -
Page 28: Power Supply [En60950-1:2001, 1.6]
AL2094S Designers Guide 6.2.2 Power Supply [EN60950-1:2001, 1.6] Before installing the Socket Modem in a host system, the installer must ensure that the power drawn by the card, together with the host and any auxiliary cards drawing power from the host, is within the rating of the host power supply unit. - Page 29 AL2094S Designers Guide Clearance and creepage between primary (mains) and secondary circuits according EN 60950-1:2001, clause 2.10.3.2 table 2H and clause 2.10.4 table 2L. Minimum distances between primary and secondary circuits (f.g. for mains voltage 230 V Clearance = 4 mm Creepage = 5 mm Failure to maintain these minimum distances would invalidate the approval.
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Page 30: Considerations For Emc
AL2094S Designers Guide Considerations for EMC 6.3.1 EMC Compliance (European Countries) The Socket Modem has been assessed with respect to emission of and immunity to electromagnetic disturbances and has been found to comply with the relevant harmonized standards as defined by the European EMC Directive (89/336/EEC).
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