beautypg.com

B1: rs bip-8, E1: rs orderwire, F1: rs user channel – EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual

Page 649

background image

Glossary

SONET/SDH Application

635

SDH - Regenerator Section Overhead (RSOH)

B1: RS BIP-8

The BIP-8 (Bit-Interleaved Parity) byte provides section error monitoring.
The byte is calculated by performing a routine even-parity check over all
bits of the previous STM-N frame. This byte is only defined for the first
STM-1 frame of a composite signal.

E1: RS Orderwire

The Orderwire provides a 64 kbps voice channel for communication
between two STEs. This byte is only defined for the first STM-1 frame of a
composite signal.

F1: RS User Channel

The User Channel byte is reserved for user purposes. This byte is only
defined for the first STM-1 frame of a composite signal.

D1, D2 and D3: RS DCC (Data Communications
Channel)

The Data Communication Channel (D1, D2 and D3) provides a 192 kbps
data communication between two STEs for operation functions such as
OAM&P. This byte is only defined for the first STM-1 frame of a composite
signal.