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| 型号： | RH56D-PCI |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | MODEM DEVICE FAMILY FOR DESKTOP APPLICATIONS |
| 中文描述： | 调制解调器设备家庭桌面应用程序 |
| 文件页数： | 7/60页 |
| 文件大小： | 357K |
| 代理商： | RH56D-PCI |
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RH56D-PCI Modem Designer’s Guide
1213
Conexant
1-1
Conexant Proprietary Information
1. INTRODUCTION
1.1 SUMMARY
The Conexant RH56D-PCI V.90/K56flex
Host Controlled Modem Device Family supports high speed analog data up to 56
kbps, 14.4 kbps fax, voice/TAM, and speakerphone (optional) operation. The modem operates with PSTN telephone lines in
the U.S. and world-wide. The modem is available with or without speakerphone support (see Table 1-1).
The modem is packaged in a single 144-pin thin quad flat pack (TQFP) that combines PCI Bus Interface (BIF) and Modem
Data Pump (MDP) functions.
This modem is pin-compatible with the SoftK56-PCI modem, part number R6793 (see
SoftK56-PCI data sheet Order No. MD231).
Host modem software is also provided.
Operating with +3.3V power, this device set supports 32-bit host applications in such designs as embedded motherboards
and PCI half cards. Downloadable architecture allows updating of MDP executable code.
Figure 1-1 illustrates the general structure of the RH56D-PCI software and the interface to the RH56D-PCI hardware.
Figure 1-2 illustrates the major hardware interfaces supported by each model.
In ITU-T V.90/K56flex data mode, the modem can receive data at speeds up to 56 kbps from a digitally connected V.90 or
K56flex-compatible central site modem. A V.90/K56flex modem takes advantage of the PSTN which is primarily digital except
for the client modem to central office local loop and is ideal for applications such as remote access to an Internet Service
Provider (ISP), on-line service, or corporate site. In this mode, the modem can transmit data at speeds up to V.34 rates.
In V.34 data mode, the modem operates at line speeds up to 33.6 kbps. When applicable, error correction (V.42/MNP 2-4)
and data compression (V.42 bis/MNP 5) maximize data transfer integrity and boost average data throughput. Non-error-
correcting mode is also supported.
All models support remote audio recording and remote audio playback over the telephone line interface using A-Law,
μ
-Law,
or linear coding at 8000 or 7200 Hz sample rate to support applications such as digital telephone answering machine (TAM).
The SP model supports position independent, full-duplex speakerphone (FDSP) operation.
Fax Group 3 send and receive rates are supported up to 14.4 kbps with T.30 protocol.
V.80 synchronous access mode supports host-controlled communication protocols, e. g., H.324 video conferencing.
Reference design kits are available to minimize application design time and costs.
This designer's guide describes the modem hardware capabilities and identifies the supporting commands. Commands and
parameters are defined in the Commands for RH56D/RC56HCF and RH56LD Reference Manual (Order No. 1118).
相关PDF资料 |
PDF描述 |
|---|---|
| RH56D-PCI | Host Controlled V.90/K56flex Modem device |
| RHF-24(2) | LOW-POWER DISSIPATION ADSL LINE DRIVER |
| RI-60 | Ultra-miniature dry-reed switch hermetically sealed in a gas-filled glass envelope |
| RI60 | Ultra-miniature dry-reed switch germetically sealed in a gas-dilled glass envelope |
| RI-ANT-S01C-00 | SERIES 2000 ANTENNAS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RH56M-4/122156 | 制造商:ebm-papst Inc 功能描述: |
| RH56M-4/210928 | 制造商:ebm-papst Inc 功能描述: |
| RH56M-6/127804 | 制造商:ebm-papst Inc 功能描述: |
| RH56M-6/204689 | 制造商:ebm-papst Inc 功能描述: |
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