Enterasys csx101 Betriebsanweisung

48 CyberSWITCH 100 Advanced User Information

If the unit has only an S/T interface, a problem is occurring in either the connection to the 
external NT1 or the connection to the network. To ensure that an installed NT1 is operating 
properly, check the NT1’s operational light. Refer to documentation supplied with the NT1 unit.

If the unit has a U interface, a problem is occurring in the negotiation to the network.

Examine the phone line cable for frays. Check that each end is securely plugged in.

Contact the ISDN service provider to ensure the ISDN line is operational. If you have other 
ISDN equipment that is operational, temporarily plug it into the wall jack to verify that the 
ISDN line is operational out to the service provider.

The router is having trouble negotiating SPIDs and DNs with the central office.

Software problems usually occur when your software configuration contains incomplete or 
incorrect information.

For a LAN connection, verify that the IP address matches the IP address previously stored into 
the router’s configuration. You must have previously (through QuickSET) set the Ethernet LAN 
IP address and subnet mask, enabled IP routing, saved the Ethernet configuration changes and 
rebooted the router for the new IP address to take effect. 

Check that your LAN cable is pinned correctly and each end securely plugged in.

Make sure that an IP route exists between your local PC and the CyberSWITCH 100. The PC 
and CyberSWITCH 100 must be on the same IP subnetwork or the CyberSWITCH 100 must 
be reachable through a router on your LAN.

Check Network TCP/IP properties under Windows 95 or Windows N/T.

Check if the LAN LED on the CyberSWITCH 100 front panel blinks in response to a “ping”.