Test Functions
MaxTester 353
OH - SONET/SDH
Z3 and Z4:
SONET only: Growth.
F3:
SDH only: User Channel. The Path User Channel provides a channel for
communication purposes between path elements and is payload
dependent.
K3:
SDH only: Automatic Protection Switching (APS). Bits 1 to 4 of the K3
byte are used for APS signaling. K3 bits 5 to 8 are reserved for future
use.
N1:
SONET: The N1 byte (formerly referred to as the Z5 byte) is allocated
for Tandem Connection Maintenance (TCM) and the Path Data
Channel.
SDH: (Network operator byte) The N1 byte is allocated to provide a
Higher-Order Tandem Connection Monitoring (HO-TCM) function.
To Next Page
Loading...
