NDA-24296 CHAPTER 3
Page 605
Revision 1.0
PA-24DTR (DLI)
Digital Line Interface
PA-24DTR (DLI)
Digital Line Interface
1. General Function
The PA-24DTR (24DLI) circuit card provides an interface between 24 digital lines and the system at 1.544
Mbit/s. To obtain appropriate speech level, this card is equipped with a mask ROM in which typical PAD
patterns have been already written. A desired PAD value can be easily selected by key settings.
Note:
The key settings become valid when SYS1 INDEX4 bit5=1.
Figure 3-190 Location of PA-24DTR (DLI) within the System
I/O Local
Bus
CPU
INT TSW INT
24ch
T
R
TERMINAL
EQUIPMENT
DLI(PA-24DTR)
: Speech Path (PCM signal)
: Clock Signal