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Chapter 1 Introduction
1.1 Description :
SP3302A is a USB controller-less ADSL modem for customer premises. As
such it provides all software modems’ advantages:
1. Cost. Software modems use the processing power of the host, which is
allowed using software routines instead of hardware.
2. Flexibility. The fundamental algorithms of the modem are part of the
driver, which can easily be modified as any other software module.
1.2 Features:
§ OS supported:
Windows 98 FE/SE, Windows M E, Windows 2000, Windows XP
§ Standard supported
ITU:
- G.992.1: full-rate over telephone line
- G.992.2: splitter-less ADSL (G.Lite)
ANSI:
- T1.413: full-rate ADSL
§ USB: Compliant with specification release 1.1
§ RFC Protocols:
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RFC 1483 bridged LLC SNAP
RFC 1483 bridged VCMUX
RFC 1483 routed LLC SNAP
RFC 1483 routed VCMUX
RFC 2364 PPP over ATM LLC
RFC 2364 PPP over ATM VCMUX
RFC 2516 PPP over Ethernet LLC RFC 2225 Classical IP over ATM
RFC 2516 PPP over Ethernet VCMUX
1.3 LED Interface
There are four LED indicators on the front panel of yo ur ADSL USB
modem as shown. In the schematic below each of which displays an
operational status.
ACT illuminated when the USB bus congests
LINK illuminated when the ADSL transceiver is in Showtime Mode
USB illuminated when data is received from the ADSL line
Power illuminated when the ADSL power on
