Frame Configuration Of 24Dti - Philips Sopho 2000 IPS User Manual

Frame Configuration of 24DTI

According to the AT&T Specifications for 24-channel transmission, there are two types of frame config-
urations: 12-Multi Frame (D4) and 24-Multi Frame (ESF).
1. 12-Multi Frame
This configuration has 12-Multi Frames, and each Multi frame has a 24-channel PCM signal (8 bits/
channel) and a S bit (Super Frame Bit). Figure below shows the frame configuration, and Table in
next page shows frame bit assignment.
CH1
S
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
FRAME 1
125 µs
DTI Frame Configuration (12-Multi Frame)
CH2 CH3
FRAME 2 FRAME 3
S: SUPERFRAME BIT
– 276 –
DIRECT DIGITAL INTERFACE
DTI SPECIFICATIONS
CH24
1 2 3 4 5 6 7 8
FRAME 12
NWA-008845-001 Rev.5.0
32ch1005.fm
JULY/01/2006