1 - Introduction
SAGEM F@st™ 800 / 840 (PPP) User Guide - 288 047 975-02
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Page 1-3
1.1 Overview
The SAGEM ADSL modem exists in two models :
¾ The SAGEM F@st™ 800,
¾ The SAGEM F@st™ 840.
The SAGEM F@st™ 800 modem is designed for Internet connection by the switched analog
telephonic network (PSTN)
The SAGEM F@st™ 840 modem is designed for Internet connection by the integrated service
digital network (ISDN).
In the next sections of this User Guide, we will use the general term SAGEM F@st™ 800/840 to
designate these two modems. However, we will notify you of notable differences every time it
will be necessary.
The SAGEM F@st™ 800 / 840 is an ADSL over ISDN modem used to browse the Internet with
ease at speeds of up to 8 Mbit/s. The modem's purpose is to transmit data between a terminal
(PC or Mac) connected by a USB interface and an Internet Access Provider (IAP), via an ADSL
link.
The SAGEM F@st™ 800 / 840 supports the following encapsulations:
• PPPoA in VCMUX mode,
• PPPoA in LLC mode,
• PPPoE in VCMUX mode,
• PPPoE in LLC mode.
The modem has the advantage of being powered via the USB interface and therefore does not
needs a main power unit or a power cable.
The SAGEM F@st™ 800 / 840 has the following two interfaces:
¾ USB interface
¾ Remote network interface (ADSL)