Specifications

Installation and Operation Manual Chapter 1 Introduction
ASMi-54C LRS-102 Ver. 2.0 Functional Description 1-7
1.3 Functional Description
Functional Block Diagram
Figure 1-3 shows the functional block diagram of the ASMi-54C module.
SHDSL Subsystem 1
ASMi-54C
Main
Ethernet
Switch
Ethernet
Transceiver
ETH1
ETH2
Control
Management Bus
Local
Management
Ethernet
Transceiver
Internal
Timing
Generator
Internal
Clock & Timing
Signals
SHDSL
Modem 4
.
.
.
.
.
SHDSL
Modem 1
Multiplexer
Ethernet
Traffic
Processor
.
.
.
. . .
PCS 1
PCS 4
SHDSL Subsystem 2
SHDSL
Modem 8
.
.
.
.
.
SHDSL
Modem 5
Multiplexer
Ethernet
Traffic
Processor
.
.
.
PCS 5
PCS 8
SHDSL Subsystem
Ethernet Switch
. . .
Line 1
Line 4
Line 5
Line 8
.
.
.
.
.
.
.
.
.
.
Figure 1-3. ASMi-54C Functional Block Diagram
The ASMi-54C module includes the following main subsystems:
• SHDSL subsystems, including the following functions:
 SHDSL modems
 Payload multiplexer
 Ethernet traffic processor