RAD Data comm Modular Access Device with Integrated Router Manuel D’Utilisation
Chapter 1 Introduction
FCD-IPM Installation and Operation Manual
1-6 Functional
Description
ISDN or
Serial
Port
LAN 1
Mux
LAN 2
Router
Main
Link
Sublink
Voice
Port
n x 64 kbps
Switch
Figure 1-4. FCD-IPM Functional Block Diagram
FCD-IPM can be ordered in several configuration options. The main link is always
E1/T1 (E1 over SHDSL), and there is always at least one LAN link. The other
interfaces may be a sub E1/T1 link, analog voice, ISDN backup, n x 64 data port,
or router port.
E1/T1 (E1 over SHDSL), and there is always at least one LAN link. The other
interfaces may be a sub E1/T1 link, analog voice, ISDN backup, n x 64 data port,
or router port.
Main Link and Sublink Characteristics
The FCD-IPM E1 main and sublink meet the requirements of ITU-T Rec. G.703,
G.704, G.706, G.732, and G.823, and support 256N and 256S multiframes
(2 or 16 frames per multiframe, respectively), in accordance with ITU-T Rec.
G.704. For FCD-IPM T1 versions the main and sublink comply to AT&T TR62411
and ANSI T1.403 standards, and support D4 and ESF framing.
The framed mode and use of the CRC-4 function are user-selectable.
G.704, G.706, G.732, and G.823, and support 256N and 256S multiframes
(2 or 16 frames per multiframe, respectively), in accordance with ITU-T Rec.
G.704. For FCD-IPM T1 versions the main and sublink comply to AT&T TR62411
and ANSI T1.403 standards, and support D4 and ESF framing.
The framed mode and use of the CRC-4 function are user-selectable.