Instruction manual

Page 1470 of 3156 Extended Tone Detector Global Parameters Download
553-3001-306 Standard 10.00 January 2002
This feature allows several new parameters and a new message to be
downloaded onto the new global XTD pack, the NT5K48AA. The new
parameters, grouped under the categories of first stage dialtone detection,
second stage dialtone detection, and XDTR minimum accept level, are:
• flexible first stage dialtone detection
— frequency band (expanded operation)
— minimum detect level
— minimum validation time
— break duration
— cadence type
• flexible second stage dialtone detection
— second stage configuration, and
• flexible XDTR minimum accept level
The new message is the Detect Second Stage Dialtone. It allows the
NT5K48AA to distinguish between using the first stage dialtone detection
parameters and the second stage dialtone detect parameters for detecting
dialtone.
To configure the first and second stage dialtone detection parameters, a new
type, DTD, and associated prompts have been introduced in LD 97. This
prompt allows a craftsperson to create up to eight different XTD tables
containing the parameters. In LD 13, a table is associated with each XTD
card. These parameters are downloaded onto each XTD card.
To configure the flexible XDTR minimum accept level parameter, a new
type, DTR, and associated prompt MINL (that defines the minimum accept
level, on a per-system basis) have been introduced in LD 97. This parameter
is downloaded onto each XTD card and DTR card.