NEC NEAX 2000, Programming Manual

Page: 222 / 1200

DIRECT DIGITAL INTERFACE (DDI)
DTI SPECIFICATIONS
– 202 –
A2195-10
12-Multi Frame Bit Assignment
* The S-bit is the first bit in each frame.
* Frames are repeated in the order shown above.
* Frames 6 and 12 become signal frames.
FRAME
No.
S BIT
BIT No. OF EACH CHANNEL
(CH1-CH12)
SIGNAL
CHANNEL
TERMINAL
SYNCHRONIZATION
(FT)
SIGNAL
SYNCHRONIZATION
(FS)
INFORMATION
SIGNAL BIT
CONTROL
SIGNAL BIT
1 1 1-8
2 0 1-8
3 0 1-8
4 0 1-8
5 1 1-8
6 1 1-7 8 A
7 0 1-8
8 1 1-8
9 1 1-8
10 1 1-8
11 0 1-8
12 0 1-7 8 B