User`s guide

DIP-SWITCHES SET UP
1 Overview
The XSRING can be configured either with DIP switches or with an html
browser through Ethernet.
The Html server offers useful diagnostic functions like Error rate statistics
and logs. It is advised to use the html server when the network is
complicated or when distances between SHDSL switches are long.
Moreover, advanced functions like Quality of Service, serial gateway and
VLAN can only be configured with the html server.
2 Dip switches configuration
2.1 Enabling DIP switches configuration
To select DIP switches configuration, set the DIP switches SW1 et SW2
ON.
2.2 SHDSL port 1 configuration (SW3, SW4, SW5)
The DIP switches SW3, SW4, SW5 allow to set up the SHDSL
switch port 1. Port 2 will be automatically set up.
When two XSRING SHDSL switches
are connected through a line, the port of
the first one has to be set as an LTU
(calling party) and the port of the other
one has to be configured as an NTU.
(called party).
The SHDSL switch port which is set as LTU is in charge of negotiating the
data rate over the line; the NTU can only accept.
The data rate can be either negotiated by the LTU itself (auto mode) , or
imposed by the user with the DIP switches.
To set up the data rate, refer to the table of appendix 1; it gives the
expected data rate according to the distance and the wire diameter.
Failsafe ring SHDSL switch User’s guide ref 9014809-03
page 21