User guide

2-1
Telesyn Service Guide (Optimizing Data Services (SHDSL))
2. Optimizing Data Services (SHDSL)
2.1 Overview
Typically, SHDSL is used to provide a data services for business applications. It provides symmetric transmission
at a 2.3Mbps data rate over one pair of copper telephone wires and supports service for data and voice. Two ports
may be joined (bonded) to form a single link with double bandwidth (up to 4.6 Mbps).
Two geographically regional modes, Annex-A and Annex-B, are supported. Annex-A is normally used within
North American networks, which employ T1 services, and Annex-B for European networks (E1 services). The
following figures illustrate the SHDSL configuration.
FIGURE 2-1 SHDSL Configuration - Physical View
Telesyn MAP
configured with
SHDSL16 SMs
Telephone
wire pair
Bonded
wire pair
G.SHDSL
Modem
Ethernet Uplink
Business
PTSN
Business
IP Data
Services
VoIP
GSV
Modem
Business A
Business B