ADTRAN 6000 Series Network Card User Manual


 
Section 5 User Interface Guide TRACER 6000 Series Integrated System Manual
72 Copyright © 2005 ADTRAN, Inc. 612806420L1-1F
> E1X STATUS/CONFIGURATION/LOOPBACK > LINE CODE
Sets the line coding for the E1 link. The TRACER 64x0 supports high-density bipolar 3 substitution
(
HDB3) and alternate mark inversion (AMI) line coding. HDB3 coding does not allow more than three
consecutive zeros in a transmitted bit stream and is the standard coding method on public networks.
> E1X STATUS/CONFIGURATION/LOOPBACK > LOOP/NORMAL STATE
Controls the loop status of the E1 link. Activates/deactivates loopback conditions for testing purposes.
> E1X STATUS/CONFIGURATION/LOOPBACK > LOOP/NORMAL STATE > NORMAL
Defines the E1 link as normal data transport mode; there are no active loopbacks.
> E1X STATUS/CONFIGURATION/LOOPBACK > LOOP/NORMAL STATE > LINK [LOCAL]
Activates a loopback at the local TRACER 64x0 E1 framer towards the remote end of the wireless link
(see Figure 15). Use the local
LINK loopback to loop the data transmitted from the remote end of the link
back across the radio link to the remote end of the link. This loopback tests the integrity of the radio link
and all the associated digital and RF hardware.
Figure 15. E1 Local Link Loopback
> E1X STATUS/CONFIGURATION/LOOPBACK > LOOP/NORMAL STATE > LINK [REMOTE]
Activates a loopback at the remote TRACER 64x0 E1 framer towards the local end of the wireless link
(see Figure 16). Use the remote
LINK loopback to loop the data transmitted from the local end of the link
across the radio link to the local end of the link. This loopback tests the integrity of the radio link and all
the associated digital and RF hardware.
Figure 16. E1 Remote Link Loopback
> E1X STATUS/CONFIGURATION/LOOPBACK > LOOP/NORMAL STATE > LINE [LOCAL]
Activates a loopback at the local TRACER 64x0 E1 framer towards the locally connected E1 equipment
(see Figure 17). Use the local
LINE loopback to test data path integrity from the local TRACER 64x0 unit to
the connected E1 equipment.
Figure 17. E1 Local Line Loopback