Cabletron Systems Cabletron CyberSWITCH CSX400 - Manual (Page 106)

CSX400 Configuration with QuickSET
92 CSX400 and CSX400-DC User’s Guide
Table 17 shows the line configuration information normally determined by your service provider.
The CSX400 factory default settings are in bold.
This section describes the fields in the Wide Area DDS configuration window.
DDS Line Mode — Displays the DDS Line Mode. The selections for this field are DDS-PRI 56K
(primary) and DDS-CC 64K (clear channel). This information is determined by the service
provider. The default setting is DDS-PRI.
DDS Clock Source — Displays the DDS clock source. The selections for this field are either
Loop-Timing or Local-Timing. The Loop-Timing setting allows the CSX400 to receive its timing
information from the service provider. The Local-Timing setting allows the CSX400 to generate
its timing information internally. If DDS-CC 64K was chosen for the DDS Line Mode then this
field must be set to Loop-Timing. The default setting for this field is Loop-Timing.
DDS Loop Back — Displays the internal loopback as either Line Loop or No Loop. Line Loop is
reserved for network diagnostics only. The default setting is No Loop.
Protocol — Displays the active protocol for the DDS WAN port. The selections for this field are
Frame Relay or PPP. The default setting for this field is PPP.
Link Management Protocol — If Frame Relay is the selected protocol, this field displays Q.933
Annex A and T1.617 Annex D. The default for Frame Relay is T1.617 Annex D. This field is
grayed out and not used for PPP.
Once the Wide Area DDS configuration is complete, click on the Next>> button, and go to the
Bridging and Routing Configuration section of this guide
Table 17 Telco Configuration Information
Configuration Information
Required by User Configuration Information
Supplied by Service Provider
DDS Line Mode DDS-PRI or DDS-CC
DDS Clock Source Loop-Timing or Local-Timing
DDS Loop Back No Loop or Line Loop