Cabletron Systems manual 84 CSX400 and CSX400-DC User’s Guide

CSX400 Configuration with QuickSET

The line configuration information shown in Table 13 must be supplied by your service provider. The CyberSWITCH factory default settings are in bold type.

Table 13 Telco Configuration Information

Configuration Information		Configuration Information
Required by User		Supplied by Service Provider
E1 Frame Type		E1 or E1-CRC
E1	Line Coding	HDB3 or AMI
E1	Loop-Back	No Loop or Line Loop
E1 Transmit Clock Source		Loop-Timingor Local-Timing
Time Slots (for Fractional E1)		Time Slot (1-32) Assignments

The following definitions explain the fields in the Wide Area E1 configuration window.

E1 Frame Type — Displays the E1 frame type. The selection toggles between E1 and E1-CRC. The default setting for this field is E1.

E1 Line Coding — Displays the line coding for the physical E1 line. The selections toggle between HDB3 and AMI. The default setting for this field is HDB3.

E1 Loop-Back — Network Loopback is a testing procedure that segments the line and allows you to isolate faults. Click on the radio button to select either the No Loop or Line Loop option. In Line Loop, all 32 channels are looped back to the E1 line. The CyberSWITCH must be in Loop-Timing mode to use this option. The default setting is No Loop.

E1 Transmit Clock Source — Displays the E1 Transmit Clock Source. Click on the radio button to select either the Loop-Timing(Extracted Line Data) or Local-Timing(Internal Clock) option. The default setting for this field is Loop-Timing.

Protocol — Displays the active protocol for the E1 WAN port. The selections for this field are either 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.

84 CSX400 and CSX400-DC User’s Guide