3Com SuperStack II PathBuilder S330 Reference Manual page 150

136 C 4: C
HAPTER ONFIGURING
P B S330/S310 M
ATH UILDER ODULES
Configuring CBR Circuits for Structured Voice DBA (CAS) In structured
voice DBA, the CBR software reads the stored signaling bits and releases
bandwidth when it detects an on-hook (idle) condition. Use structured voice
circuits with DBA for CAS (channel associated signaling) applications.
To configure a CBR virtual circuit for structured voice DBA, follow these basic
steps:
1 Configure the CBR port as follows:
Set the Port Mode to Structured Voice.
Set the other port parameters as appropriate for your application.
2 Configure the CBR virtual circuit as follows:
Set the Payload Size/Type to Voice.
Set Onhook Detection to Enabled.
Set the other circuit parameters as appropriate for your application.
Configuring CBR Circuits for Clear Channel Signaling Due to the rob-bit
signaling employed in CAS, each T1 DS0 channel can have only up to 56 Kbps of
bandwidth.
To create a full 64 Kbps DS0 clear channel in structured voice mode, follow these
basic steps:
1 Configure the CBR port as follows:
Set the Port Mode to Structured Voice.
Set the other port parameters as appropriate for your application.
2 Configure the T1 CBR virtual circuit as follows:
Set the Payload Size/Type to Data.
Set Onhook Detection to Disabled.
Set the other circuit parameters as appropriate for your application.
Configuring CBR Circuits for Structured Data DBA (CCS) In structured data
DBA, the CBR software reads the DSO payload bytes and releases bandwidth
when it detects an on-hook (idle) condition. Use structured data circuits with DBA
for CCS (common channel signaling) applications.
To configure a CBR virtual circuit for structured data DBA, follow these basic steps:
1 Configure the CBR port as follows:
Set the Port Mode to Structured Data.
Set the other port parameters as appropriate for your application.
2 Configure the CBR circuit as follows:
Set the Mode to DBA.
Set the other circuit parameters as appropriate for your application.
The Payload Size/Type, Onhook Detection and Signaling Type parameters are set
automatically when you set the circuit Mode to DBA.
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ORTS AND PPLICATIONS