PM5347 datasheet(240/302 Pages) PMC

240 / 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

224

Z1:

The Z1 bytes are located in the second and third STS-1s of

a STS-3c (STM-1) and are allocated for future growth.

M0:

The M0 byte is defined only for STS-1, and bits 5 through 8

provide a line far end block error function for remote

performance monitoring. Bits 1 through 4 are currently

undefined.

M1:

The M1 byte is located in the third STS-1 of a STS-3c (STM-

1) and provides a line far end block error function for remote

performance monitoring.

Z2:

The Z2 bytes are located in the first and second STS-1s of a

STS-3c (STM-1) and are allocated for future growth.

E2:

The line orderwire byte provides a 64 kbit/s craftperson voice

channel for network element to network element

communication.

Path Overhead Bytes

J1:

The Path Trace byte is used to repetitively transmit a 64-byte

CLLI message (for SONET networks), or a 16-byte E.164

address (for SDH networks). When not used, this byte

should be set to transmit continuous null characters. Null is

defined as the ASCII code, 0x00.

B3:

The path bit interleaved parity byte provides a path error

monitoring function.

C2:

The path signal label indicator identifies the equipped

payload type. For ATM payloads, the identification code is

0x13.

G1:

The path status byte provides a path FEBE function, and a

path remote defect indication function. Two bits are allocated

for remote defect indications: bit 5 (the path RDI bit) and bit

6 (the auxiliary path RDI bit). Taken together these bits

provide a four state path RDI code that can be used to

categorize path defect indications.

F2:

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

channel for use by the network provider.

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