ATLAS 550 System Manual

Section 4, User Interface Guide

 

 

The following loopback status messages may display:

LOCAL DTE

LOOPBACK

LOCAL LINE LOOPBACK

REMOTE LINE LOOPBACK

A local DTE Loopback occurs at the DTE port of the DCE, and is used to test the link between the DTE and the DCE (NxT1 HSSI or NxT1 HSSI/V.35 Option Modules).

A local line loopback occurs in the IMUX engine and is sued to test functionality between the DTE and the IMUX engine.

A remote line loopback occurs at the T1 interface and is used to test functionality between the DTE and the T1 interfaces.

Figure 13. HSSI Interface Loopback Test Diagram

61200305L1-1F

© 2002 ADTRAN, Inc.

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ADTRAN 1200305L1 system manual Following loopback status messages may display, Hssi Interface Loopback Test Diagram