Specifications

Section 4.7 FXS UIG Total Access 600 Series System Manual
352 © 2002 ADTRAN, Inc. 61200624L1-1A
FXS Voice Ports Test Options
Tests are conducted on the FXS ports via the MODULES screen menus and a VT 100 terminal.
Port
Identifies the port involved.
Test
To initiate a module test, scroll to the TEST column and press Enter. Options are detailed below.
Customer Ring Test
The Customer Ring Test will activate the unit’s ring relay in a 2-on/4-off ring cadence, providing ringing to
the customer loop.
Test Status
Tells whether a test is in progress.
FXS Voice Ports Status Options
The transmit and receive signalling bits are shown in the STATUS menu of the FXS ports.
Total Access 600 Features Used with FXS Options
Factory Restore
You can restore the factory default settings for an FXS by pressing F while the cursor is over the SLT
number (this action restores the factory settings for all of the module options), while the cursor is over the
P
RT number (this action restores the factory settings for the port), or while the cursor is over an individual
field (this action restores factory settings for the particular field only).
Echo Canceller
By using an integrated echo canceller and Adaptive Differential Pulse Code Modulation (ADPCM)
encoder/decoder, the Total Access 600 can support a variety of voice applications. Voice over packet/cell
applications require that echo cancellation techniques be applied to the voice traffic to achieve high quality
voice. By using ADPCM compression schemes outlined in ITU-T G.721, the Total Access 600 can
minimize bandwidth requirements and more efficiently utilize the physical link.