Chapter 2 Technical Indexes
Confidential and Proprietary Information of ZTE CORPORATION 41
TABLE 19 − 1000BASE-SX AND 1000BASE-LX JITTER SPECIFICATION
Total Jitter Determined Jitter
Reference
Point
UI Ps UI Ps
TP1 0.24 192 0.1 80
TP1-TP2 0.28 227 0.1 80
TP2 0.43 345 0.2 160
TP2-TP3 0.17 136 0.05 40
TP3 0.51 408 0.25 200
TP3-TP4 0.33 266 0.21 170
TP4 0.75 599 0.46 370
ATM Performance Index
ATM performance indexes contain:
QoS Performance Index
System PVC Capability
Performance Index of ATM Interface
QoS Performance Index
For the level-1, level-2 and level-3 QoS, the ATM PVC
performance index is determined according to the interface
connected with the ATM at the 80% load level.
Table 20
describes the performance indexes of the STM-1 and STM-4
interfaces at different QoS levels.
Table 20 does not describe the
performance damage caused by the processing of the layers
above the ATM layer.
TABLE 20 − PERFORMANCE INDEX AFTER ATM CONNECTION PASSING AN
ATM SWITCHING PART WHEN CELLS ARE SENT TO STM-1 AND STM-2
INTERFACES
Performance
Parameter
CLP QOS Level-
1
Connection
QOS Level-3
Connection
QOS Level-4
Connection
CLR 0
≤ 2 × 10 − 10
≤ 10 − 7 ≤ 10 − 7
CLR 1 Not specified
Not specified Not specified
CER 1/0
≤ 10 − 12 ≤ 10 − 12 ≤ 10 − 12
CTD (99%,
probability)
1/0
150 μs 150 μs 150 μs