3Com 3C63400-3AC-C - PathBuilder S700 Switch Reference Manual page 150

136 C 5: C
HAPTER ONFIGURING
P B S700 M
ATH UILDER ODULES
Figure 97 shows the E1 UNI Port Configuration menu. The DS1 UNI Configuration
menu is similar. These menus display the current configuration for the selected DS1
UNI or E1 UNI port and provide options for changing certain parameters.
Figure 97 E1 UNI Port Configuration Menu
Figure 98 DS1 UNI Port Configuration Menu
4 Set the following parameters as desired:
LBO (DS1 only)—Line Build Out. The setting for the transmit signal level: 0, 7.5,
15, or 22.5 db. The LBO compensates for the distance between the card and the
CSU/repeater. It is a setting for the transmit signal level.
Line Code (DS1 only)—The zero code suppression technique configured to the
DS1 port interface: B8ZS for DS1; HDB3 for E1. This is a read-only parameter.
B8ZS—Binary 8 Zero Substitution; a T1 (1.544Mbps) carrier line coding format
used to accommodate "ones density" for clear channel transmission.
HDB3—High Density Binary 3 zero Substitution; an E1 carrier line coding
format
, P , A
ORTS AND PPLICATIONS