PM5347 datasheet(239/302 Pages) PMC

239 / 302 page

PM5347 S/UNI-PLUS

DATA SHEET

PMC-941033

ISSUE 6

SATURN USER NETWORK INTERFACE PLUS

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

223

B1:

The section bit interleaved parity byte provides a section

error monitoring function.

E1:

The section orderwire byte provides a 64 kbit/s craftperson

voice channel for network element to network element

communication.

F1:

The section user channel byte provides a 64 kbit/s data

channel for use by the network provider.

D1 - D3:

The section data communications channel provides a 192

kbit/s data communications channel for network element to

network element communications.

H1, H2:

The pointer value bytes locate the path overhead column in

the SONET/SDH frame.

H3:

The pointer action bytes contain synchronous payload

envelope data when a negative stuff event occurs. The all

zeros pattern is inserted in the transmit direction. This byte

is ignored in the receive direction unless a negative stuff

event is detected.

B2:

The line bit interleaved parity bytes provide a line error

monitoring function.

K1, K2:

The K1 and K2 bytes provide the automatic protection

switching channel. The K2 byte is also used to identify line

layer maintenance signals. Line RDI is indicated when bits

6, 7, and 8 of the K2 byte are set to the pattern '110'. Line

AIS is indicated when bits 6, 7, and 8 of the K2 byte are set

to the pattern '111'.

D4 - D12:

The line data communications channel provides a 576 kbit/s

data communications channel for network element to

network element communications.

S1:

The S1 byte provides the synchronization status byte. Bits 5

through 8 of the synchronization status byte identifies the

synchronization source of the STS-3c/1 (STM-1) signal. Bits

1 through 4 are currently undefined.

PM5347 Datasheet(PDF) 239 Page - PMC-Sierra, Inc

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