Chapter 9 Line Interface Boards
Parameter
Specification
Rate
In ADSL2+ full rate mode (ITU-T 992.5): The downlink rate can
reach 24 Mbps and the uplink rate can reach 1 Mbps.
In VDSL2 mode (ITU-T 993.2): The downlink rate can reach 100
Mbps and the uplink rate can reach 50 Mbps.
9.9 RAC-PIU-04SHDSL
Overview
RAC-PIU-04SHDSL board provides the following functions:
l
Provides one G.SHDSL (SHDSL group) interface, which provides four
electrical interfaces.
Symmetric High bit rate Digital Subscriber Line (SHDSL) evolves from HDSL and
complies with the ITU-T G.991.2 and G.994.2 standards. Only one pair of telephone
lines are required for data transmission, which reduces the requirement on copper
wire resources. SHDSL uses the TC-PAM16/32/64 coding mode, where a greater
number represents a faster transmission speed. It can be used for audio, video, and
data transmission.
l
Supports the
and
protocol encapsulation modes.
l
Supports hot swapping.
l
Supports board information query and temperature monitoring.
Panel
For the panel of the RAC-PIU-04SHDSL board, see
Figure 9-9 Front Panel of the RAC-PIU-04SHDSL board
Interface Properties
For a description of the interface properties, refer to
.
Table 9-25 Interface Properties of the RAC-PIU-04SHDSL Board
Property
Description
Connector type
RJ45 interface, connected to four RJ11 interfaces at the peer end
Operational mode
Full duplex
Applied standard
ITU-T G.991.2
9-15
SJ-20150204153047-004|2015-03-30 (R1.0)
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