User's Manual

WinLink User and Installation Guide Version 1.795 5-65
Configuring Service Parameters
You define the type of service required, Ethernet Only or Ethernet with
TDM. The bandwidth remaining available for Ethernet if TDM services
are required is shown in the dialog box.
Note:
ACCESS versions are Ethernet Only.
In the Service Parameters dialog box select the number of E1
connections (x1 or x2 for IDU-E, or x4 for IDU-C). Define the required
transmission rate, and the distance between the sites.
Æ To configure E1/T1 and Ethernet services:
1. In the Service dialog box, select one of the following:
• Ethernet plus a number of E1/T1 channels (see
Figure 5-6 ).
• Ethernet data only.
2. Select the transmission rate required.
• Adaptive
• 9 Mbps
• 12 Mbps
• 18 Mps
• 24 Mbps
• 36 Mbps
• 48 Mbps
The default rate is Adaptive. ACCESS versions only operate in
Adaptive mode.
Adaptive Modulation - The system changes modulation
automatically depending on channel characteristics in order to
guarantee continuation of service. The adaptive modulation
enables the user to maximize Ethernet throughput without
degradation of the TDM service quality. When Ethernet only service
is used, the adaptive modulation enables improving the Ethernet
performance in case of air performance degradation (periodical
interference or RSS changes).
In event of interference at one site, there is no need to use a lower
modulation at the other site (as in previous versions). In such a
case the actual rate changes automatically only at the problematic