User guide

Overview
Telesyn Service Guide (Optimizing Data Services (SHDSL))
2-2
There are two modes for SHDSL:
• SHDSL Normal 2-wire - SHDSL (Symmetric Highspeed Digital Subscriber Line) is an international stan-
dard for symmetric DSL that provides for sending and receiving high-speed symmetrical data streams over a
single pair of copper wires.
• SHDSL Bonding 4-wire -- Bonded mode joins two SHDSL ports resulting in a single port with doubled
bandwidth. Adjacent wire pairs (e.g. 0&1, 2&3, etc.) on the SHDSL16 service module must always be used.
This allows the SHLDS16 to support 8 4-wire bonded interfaces. Each bonded interface provides up to
4.6Mbps.
Figure 2-2 shows a functional view of the SHDSL configuration.
FIGURE 2-2 SHDSL Configuration - Functional View
GE3
Modem
SHDSL16
Telephone cable pair
G.SHDSL
Modem
G.SHDSL
Modem
SHDSL16
GSV
Modem
4 -wire, adjacent pairs
4 -wire, adjacent pairs
GSV
Normal mode
Bonded mode
Up to T1/E1 rate
Up to 4.6 Mbps rate
CFC24
X
Ethernet
Uplinks
Port 0
Port 0
Port 1
Port 14
Port 15
Port 15
.
.
.
.
.
.
2 - wire
Telephone cable pair
2 - wire
.
.
.
9700-Upto17SMs
9400-Upto7SMs
Note: