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S/UNI-QUAD
PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
206
Table 12: Recommended BERM settings
declare
BER
Eval Per
(s)
SF/SD
SMODE
SF/SD
CMODE
SF/SD
SAP
SF/SD
DTH
SF/SD
CTH
10
-3 0.008 0 0 0x000008 0x245 0x083
10
-4 0.013 0 1 0x00000D 0x0A3 0x0B4
10
-5 0.100 0 1 0x000064 0x084 0x08E
10
-6 1.000 0 1 0x0003E8 0x085 0x08E
10
-7 10.000 0 1 0x002710 0x085 0x08E
10
-8 83.000 0 1 0x014438 0x06D 0x077
10
-9 667.000 0 1 0x0A2D78 0x055 0x061
It is important to notice that the Table 12 was designed around the Bellcore
GR-253 specification. Please refer to the SONET/SDH/SDH Bit error Threshold
Monitoring application note for more details as well as a recommended
programming meeting the ITU G.783 specification.
13.4
Clocking Options
The S/UNI-QUAD supports several clocking modes. Figure 13 is an abstraction
of the clocking topology.