psf21911 ETC-unknow, psf21911 Datasheet - Page 56

• Manufacturer Part Number: psf21911
• Description: Isdn Echocancellation Circuit Terminal Applications Iec-q
• Manufacturer: ETC-unknow

Semiconductor Group
2.5.4
MON-2-indications are used to transfer all overhead bits (M4, M5, M6) except those
representing EOC- and CRC-bits. Starting with the ACT-bit, the order is identical to the
position of the bits at the U-interface.
Table 11
D0 … 11: Overhead bits
These bit positions in the MON-2-message correspond to the following overhead bits:
Table 12
MON-2/U
D11/M41
D10/M51
Position
D9/M61
D8/M42
D7/M52
D6/M62
D5/M43
D4/M44
D3/M45
D2/M46
D1/M47
D0/M48
MON-2
0 0 1 0
Overhead Bits (MON-2)
MON-2 Structure
Control of Overhead Bits
1. Byte
FEBE
NTM
CSO
ACT
PS1
PS2
SAI
Bit
D11 D10 D9 D8
Overhead Bits
1
1
1
1
1
Upstream (Write)
U-transc./
U-transc./
U-transc.
U-transc.
Control
Pin PS1
Pin PS2
MON-2
MON-2
MON-2
MON-8
MON-1
MON-2
MON-2
MON-2
56
D7 D6 D5 D4 D3 D2 D1 D0
FEBE
Overhead Bits
UOA
DEA
ACT
Downstream (Read)
Bit
1
1
1
1
1
1
1
1
2. Byte
U-Transceiver
PSB 21911
PSF 21911
Control
network
network
network
network
network
network
network
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network
network
network
11.97