Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario

 NTAK93 D-channel Handler Interface daughterboard

— system parameters are service changeable (system parameters are 

downloaded from software)

— incoming Layer 3 message validation procedures are implemented 

in the D-PORT firmware

— supported message units and information elements can be service 

changed

— translation of the CCITT message types information elements into a 

proprietary coding scheme for faster CPU operation

— convention of IA5-encoded digits to BCD-encoded digits for 

incoming layer 3 messages for faster CPU operation

— self-test

— loopback

The DCH function can be installed in the main and IP expansion cabinets. 
The DTI/PRI card which carries a DCH daughterboard resides in the main 
and IP expansion cabinets.