Ericsson CME 20 R6.0, Справочное руководство

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Transmission Interface Handling DS1 1544 kbit/s
Table 24 Extended Superframe Format (ESF)
F bits Bit use in each
timeslot Signalling bit use
options
Frame
number Bit
number
FPS DL CRC
Traffic
1)
Sign.
1)
T
1)
2 4 16
1 0 - m - 1 - 8 - - - - -
2 193 - - C1 1 - 8 - - - - -
3 386 - m - 1 - 8 - - - - -
4 579 0 - - 1 - 8 - - - - -
5 772 - m - 1 - 8 - - - - -
6 965 - - C2 1 - 7 8 - A A A
7 1158 - m - 1 - 8 - - - - -
8 1351 0 - - 1 - 8 - - - - -
9 1544 - m - 1 - 8 - - - - -
10 1737 - - C3 1 - 8 - - - - -
11 1930 - m - 1 - 8 - - - -
12 2123 1 - - 1 - 7 8 - A B B
13 2316 - m - 1 - 8 - - - - -
14 2509 - - C4 1 - 8 - - - - -
15 2702 - m - 1 - 8 - - - - -
16 2895 0 - - 1 - 8 - - - - -
17 3088 - m - 1 - 8 - - - - -
18 3281 - - C5 1 - 7 8 - A A C
19 3474 - m - 1 - 8 - - - - -
20 3667 1 - - 1 - 8 - - - - -
21 3860 - m - 1 - 8 - - - - -
22 4053 - - C6 1 - 8 - - - - -
23 4246 - m - 1 - 8 - - - - -
24 4439 1 - - 1 - 7 8 - A B D
1)
No channel associated signalling, only T-column applicable. 8 traffic
bits in every frame.
Frame 1 Transmitted first
Frames 6, 12, 18 and 24 Denoted signalling frames
FPS Framing Pattern Sequence (...001011...
DL 4 kbit/s Data Link (Message bits m)
CRC CRC-6 Cyclic Redundancy Check (Bits
C1-C6)
Option T Traffic (Bit 8 not used for Robbed-bit
signalling)
Option 2 2-State Signalling (Channel A)
Option 4 4-State Signalling (Channel A and B)
Option 16 16-State Signalling (Channel A, B, C and
D)
200 (306)
EN/LZT 123 2697 R5A
1998-08-13
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