Alcatel 1850 TSS-320 Technical Handbook page 48

EPS Protection So:
provides proprietary 4G Backplane Frame Format signals at 3.11 Gb/s to HPC matrix A and B (for
EPS protection purposes).
3.3.2.2 Source Side (Signal flow from HPC matrix to Optical line)
Backpanel Aligner:
performs Alignment processing on proprietary Backplane Frame Format signals at 3.11 Gb/s coming
from HPC matrix A and B
Descrambler+DEFEC+Label extraction:
performs descrambling; FEC decoding, error detection, corrected/uncorrected errored blocks count;
J0Link extraction.
EPS Protection Sk:
performs the selection (for EPS protection purposes) between link from HPC matrix A and link from
HPC matrix B.
OverHead extraction+Deslicer+Rate Adapter:
Overhead and Protection channels extraction and transmission to FERMAT; adaptation from
backpanel rate to SDH rate
HVC After Matrix (HTCM/HTCTsk, HPOM/HSUTsk, HSUTso, HTCTso):
performs path overhead handling: N1 insertion, BIP-8 (B3) compensation, C2 "unequipped"
insertion, J1 and G1 insertion, BIP-8 (B3) calculation and insertion
MSA So (MSn/Sn_A_So):
performs AUG assembly, AU4 pointer generation and processing, AU-AIS generation and PJE
count.
MST So (MSn_TT_So):
MS-REI and MS-RDI insertion, D4-D12, K1-K2 and MSOH OverHead bytes insertion.
RST*So (partial RSn_TT_So):
performs regenerator section trace (J0) insertion, D1-D3 and RSOH OverHead bytes insertion,
provides the data together with control bits on two 16-bit differential LVDS interfaces to EUCLIDE.
B1/B2 Insertion + Scrambler:
it performs errored blocks BIP-8 (B1) and BIP-384 (B2) computing and insertion, scrambling.
FAW Insertion:
it performs frame alignment and word insertion.
SerDes :
it cleans up the intrinsic jitter present on data stream coming from EUCLIDE. An internal FIFO allows
to decouple the serial data stream towards SFP optical transmitter from Euclide timing domain, by
retiming data with a clean synchronous reference clock
O/E TX: it performs the conversion from an electrical STM-16 signal to an equivalent optical stream.
Alcatel 1850 TSS-320 Rel.1.1
46/84 8DG 07734 CAAA Edition 01
Technical Handbook SDH
Units Description