Adtran 1200305L1 Manual Do Utilizador

Section 4, User Interface Guide

ATLAS 550 System Manual

174

© 2002 ADTRAN, Inc.

61200305L1-1F

(Available only on the NxT1 HSSI/V.35 Option Module - P/N 1200346L2.) Determines the behavior of the 
Data Carrier Detect (DCD) signal (also called RLSD on some interfaces). If se tot Normal, DCD will 
generally be asserted when the interface is capable of passing data. If set to Forced On, DCD will always 
be asserted. If set to Remote RTS, the value of DCD will track the value of the remote unit’s RTS signal.

(Not applicable in V.35 mode.) Asserts the data Communications equipment 

 signal from the 

DCE. CA will be asserted by the DCE, independently of TA, when the DCE is prepared to both send and 
receive data to and from the DTE. This indicates that the DCE has obtained a valid data communications 
channel. Data transmission should not commence until TA has also been asserted by the DTE.

Provides access to testing functionality for the HSSI and HSSI/V.35 interfaces for the NxT1 HSSI or NxT1 
HSSI/V.35 Option Modules.

Indicates the operating port number. The NxT1 HSSI and NxT1 HSSI/V.35 Option Modules have one 
available HSSI (or HSSI/V.35) interface.

Activates a local loopback on the HSSI interface. The following local loopbacks are available:

Activates a loopback of the received T1 data streams at the DTE interface.

Activates a loopback of the received T1 data streams after the data has been 
processed by the T1 framer located on the NxT1 HSSI or NxT1 HSSI/V.35 
Option Modules. All data received during an active 

 local loopback 

will be regenerated (re-framed) and transmitted back out the DTE interface.

Activates a loopback of all data received at the DTE. All data received during 
an active 

 loopback will be echoed out the DTE interface.