Enterasys csx400 Benutzerhandbuch

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CSX400 and CSX400-DC User’s Guide

The line configuration information shown in 

 must be supplied by your service provider. 

The CyberSWITCH factory default settings are in bold type.

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

Displays the E1 frame type. The selection toggles between E1 and E1-CRC. 

The default setting for this field is E1.

Displays the line coding for the physical E1 line. The selections toggle 

between HDB3 and AMI. The default setting for this field is HDB3.

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.

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.

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.

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.

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-Timing or Local-Timing

Time Slots (for Fractional E1)

Time Slot (1-32) Assignments