Ds3, Atm In 44.736 Mbit/S Mapping (Plcp, Hec Based) - Wavetek ANT-20 Operating Manual

ANT-20/ANT-20E
7

DS3, ATM in 44.736 Mbit/s mapping (PLCP, HEC based)

Option 3035/90.73
7.1 PLCP-based Mapping
The ATM cells are firs mapped into PLCP frames (Physical Layer Convergence Protocol) as per
G.804. The PLCP frame slips bit-synchronously (Nibble-aligned floating-4 bit) into DS3 C Parity
frames as per G.804 (G.704). For more information refer to the specifications of the "STM-1-
Mapping" file (section "DS3 Mapping"):
7.1.1 Overhead
DS3: PLCP based ATM mapping
All values are hexadecimal.
B1 is formed from the POH and ATM cells of the 12 rows of the previous frame.
Specifications
1 2 3
(POI)
1 A1 A2 P11
F6 28 2C
2 A1 A2 P10
F6 28 29
3 A1 A2 P09
F6 28 25
4 A1 A2 P08
F6 28 20
5 A1 A2 P0
F6 28 1C
6 A1 A2 P06
F6 28 19
7 A1 A2 P05
F6 28 15
8 A1 A2 P04
F6 28 10
9 A1 A2 P03
F6 28 0D
10 A1 A2 P02
F6 28 08
11 A1 A2 P01
F6 28 04
12 A1 A2 P00
F6 28 01
O H
4 5
(POH)
Z6 ATM Cell
00
Z5 ATM Cell
00
Z4 ATM Cell
00
Z3 ATM Cell
00
Z2 ATM Cell
00
Z1 ATM Cell
00
X ATM Cell
00
B1 ATM Cell
G1 ATM Cell
00
X ATM Cell
00
X ATM Cell
00
C1 ATM Cell
ATM Mappings
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