Table of Contents
Advertisement
SONET_Usr.bk Page 25 Wednesday, December 13, 2000 11:11 AM
HOW TO:
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Setting the Interfaces - SDH Operation
Setting THRU Mode
3. Payload/Channel Overwrite: This mode allows you to substitute a new payload,
Section and Line Overhead (SOH) or Path overhead (POH) in the received signal.
Any Path B3 BIP errors are recalculated before transmission.
STM-0 optical, STM-1 optical
You can substitute a new payload, Section Overhead (SOH) and Path Overhead (POH)
in the received STM-0/1 signal for testing.
STM-4 optical, STM-16 optical
The overhead and payload may be overwritten for AU-4 and AU3. PAYLOAD
OVERWRITE is not available for AU-4-4c or AU-4-16c.
SOH overwrite is available for AU-4-4C and AU-4-16c.
1 Make the required SIGNAL RATE choice, and select THRU MODE on the SDH
display, See "Setting Transmit Interface " page 20.
TRANSMIT
2 Make the PAYLOAD OVERWRITE choice required.
Hitless Mode: The Payload Overwrite enable/disable field (next to the PAYLOAD
OVERWRITE field) defaults to OFF.
If AU-4, AU-3, TU-3, TU-2 or TU-12 is chosen, the B1, B2 and B3 BIP's are
recalculated before transmission and the Mapping, Selected TU, TU Payload,
Pattern, Tributary Offset and Pattern in other TU's settings are displayed. To choose
the settings in these, See "Setting Transmit Interface " page 20, steps 4 through 9.
3 Switch the PAYLOAD OVERWRITE enable/disable field to ON. Test functions are
available whilst Payload Overwrite is enabled. Select the
and setup as required.
folder
TEST FUNCTION
25
Advertisement
Table of Contents
