Filter
Top Products
CHAPTER 1 GENERAL INFORMATION
DTI Specifications
NEAX2000 IVS
2
ISDN System Manual
ND-70919 (E), Issue 1.0
Page 29
Frame Configuration of 24DTI
According to the AT&T Specifications for 24-Channel transmission, there are two types of frame
configurations: 12-Multi Frame and 24-Multi Frame.
(1) 12-Multi Frame
The frame has 12-Multi Frames, and each Multi frame has a 24-Channel PCM signal (8 bits/
channel) and an S bit (Superframe Bit). Figure 1-13 shows the frame configuration, and
Tabl e 1- 6 shows frame bit assignment.
Figure 1-13 DTI Frame Configuration (12-Multi Frame)
S
CH1
11234567812345678
CH2
12345678
CH3
12345678
CH24
125 ms
S: Superframe Bit
FRAME 1 FRAME 2 FRAME 3 FRAME 12