3Com 3C63100-AC-C - PathBuilder S600 Bridge/router Reference Manual page 160

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HAPTER ONFIGURING
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ATH UILDER ODULES
3 Configure the CBR ports.
a From the CBR Configuration menu, select the number corresponding to the
CBR port you want to configure to display the CBR DSX or CBR E1 Port
Configuration menu for that port. Figure 124 shows the CBR DSX Port
Configuration menu for port #1. The CBR E1 Port Configuration menu is
similar.
Figure 124 CBR DSX Port Configuration Menu
DSO Channels are not configurable in this screen. All available DSO channels are
automatically allocated in unstructured mode. In structured mode, the DSO
channels are bit-coded, with each bit representing one DSO channel. You can
assign DSO channels in structured mode only. Channel conflicts within a T1/E1
port interface will result in an error.
b Set the following port configuration parameters, as desired.
LBO (CBR DSX only)—Line Build Out. LBO refers to the signal
generation/regeneration of the distance between the PathBuilder S600 and the
next crossconnect of FOTs (Fiber Optic Terminal system), in feet: 1-100,
100-200, 200-300, 300-400, 400-500 or 500-600.
Line Code (CBR DSX only)—The zero code suppression technique configured
to the CBR DSX port. Set this parameter to match the service provider or device
connection line coding. The default is B8ZS. The Line Code must match at local
and remote ports.
AMI—Alternate mark inversion; a T1 (1.544 Mbps) carrier line coding
format whereby successive ones (marks) are alternately inverted.
B8ZS—Binary 8 Zero Substitution; a T1 (1.544Mbps) carrier line coding
format used to accommodate "ones density" for clear channel
transmission.
Port Mode—The type of service configured to the specified port:
Both Structured Data and Structured Voice modes allow end to end DSO
connectivity.
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ORTS AND PPLICATIONS