VeEX MPA, User Manual

Page: 278 / 842

SONET Tab
278
STS-<#> Added Selects foreground STS# of the mapped signal.
When available, select the STS-<#> Added button to enter
the number of the specific STS channel to set as the
foreground (source) channel. The default setting is 1. The
source channel can be used to transmit alarms, errors, or
patterns.
For example, this setting selects which of the four STS-
48c channels in an OC-192 signal is the foreground channel,
the channel not selected are considered background
channels.
Select ALL to replicate the transmitted foreground test
channel over all background channels.
When All Path mapping is selected, this setting is
renamed to SPE Added .
VT Added Selects foreground VT# of the mapped signal.
When available, select the VT Added button to enter the
number of the specific VT channel to set as the foreground
(source) channel. The default setting is 1. The source
channel can be used to transmit alarms, errors, or patterns.
This option appears when VT mapping is selected.
Background STS-
<#> Pattern Allows the user to select the type of pattern to be inserted
into the remaining
background channels for the SONET
signal.
Select one of the following patterns:
PRBS 9 , PRBS 9 Inv , PRBS 11 , PRBS 11 Inv , PRBS 15 ,
PRBS 15 Inv , PRBS 20 , PRBS 20 Inv , PRBS 23 , PRBS
23 Inv , PRBS 31 , PRBS 31 Inv , or a User Defined (32-bit
value).
This setting is disabled when the STS-<#> Added setting
is set to All .
MPA_e_manual_D07-00-129P_RevA00