6
6601-2201
Description
Functional description
SHDSL represents the best of several symmetric DSL technologies that has been com-
bined into a single industry standard. DDW-100 is designed as a transparent Ethernet
Extender for 10/100BaseTX networks, it is transparent for multicast addressing, VLAN
packages, VPN pass through for IPSec and for protocols like MODBUS.
SHDSL provides the possibility to re-use existing twisted copper pair with data rates
from 192 Kbit/s to 2.3 Mbit/s in both directions (Symmetric DSL), according to standard
ITU-T G.991.2.
Based on the quality of the line and the communication speed the distance up to 6.5 km,
the distanse depends of the quality of the line and cable characteristics, this will differ
from application to application, therefore a unique feature is implemented for reliable
mode, high speed mode or normal mode.
Distance depending on speed without noise, cable type is AWG24
2500
2000
1500
500
1
2
3
4
5
6
7
kbit/s
Km
