PM5380-BI 参数 Datasheet PDF下载

S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet

Released

When PSLMODE is low, an incoming PSL is accepted when it is received unchanged for five

consecutive frames. The accepted PSL is compared with the provisioned value. The PSL alarm

declarations are determined by Table 5.

Each time an incoming PSL differs from the one in the previous frame, the PSL unstable

counter is incremented. Thus, a single bit error in the PSL in a sequence of constant PSL values

will cause the counter to increment twice, once on the errored PSL and again on the first error-

free PSL. The incoming PSL is considered unstable, when the counter reaches five. The

counter is cleared when the same PSL is received for five consecutive frames.

Table 5 Path Signal Label Mismatch Mechanism

Expect

Receive

Action

Match

Mismatch

Match

Mismatch

Match

Mismatch

Note

Sꢀ XX, YY are equal to anything except 0x00 or 0x01 and are not equal to each other.

When PSLMODE is high, the receive path signal mismatch alarm is declared based on the

declaration of a match or mismatch between the received label and the expected label. The

mismatch is set when five consecutive mismatches are declared. The mismatch is cleared when

five consecutive matches are declared. Table 6 shows the alarm declarations determined by the

different received and expected labels.

Table 6 Path Signal Label Mismatch Mechanism

Expect

Receive

Action

Unequipped

Mismatch

Unequipped

Match

Unequipped

Match

Mismatch

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.

Document No.: PMC- 2010299, Issue 2