4. Configuration Options
9128-A2-GB20-80 September 2002 4-47
Line Build Out (LBO)
Possible Settings: 0.0, 7.5, 15, 22.5
Default Setting: 0.0
Specifies the line build out for the signal transmitted to the ISDN.
0.0, 7.5, 15, 22.5 Specifies line build out in dB.
Network Initiated LLB
Possible Settings: Enable, Disable
Default Setting: Enable
Allows the initiation and termination of the line loopback (LLB) to be controlled b y the
receipt of LLB-Actuate and LLB-Release commands from the ISDN.
Enable LLB is controlled by LLB-Actuate and LLB-Release commands. Receivi ng a
LLB-Actuate command causes the system to enter a line loopback (provided an LLB can
be performed in the systems current state). Receiving an LLB-Release command
terminates the LLB.
Disable The system ignores the LLB-Actuate and LLB-Release commands.
NOTE: When disabled, the system is not in compliance with ANSI T1.403 or
AT&T TR 62411.
Network Initiated PLB
Possible Settings: Enable, Disable
Default Setting: Enable
Allows the initiation and termination of the paylo ad loopback (PLB) to be controlled by the
receipt of PLB-Actuate and PLB-Release commands from the ISDN.
Display Conditions
This option only appears when Line Framing Format is set to ESF.
Enable PLB is controlled by PLB-Actuate and PLB-Release commands. Receiving a
PLB-Actuate command causes the system to enter a payload loopback (provided a PLB
can be performed in the systems current state). Receiving a PLB-Release command
terminates the PLB.
Disable The system ignores the PLB-Actuate and PLB-Release commands.
NOTE: When disabled, the unit is not in compliance with ANSI T1.403 or
AT&T TR 54016.
ANSI Performance Report Messages
Possible Settings: Enable, Disable
Default Setting: Disable
Specifies whether ANSI T1.403 compliance performance report messages (PRMs) are
generated and sent to the ISDN over the ESF facility data link every second.
Display Conditions
This option only appears when Line Framing Format is set to ESF.
Enable Generates and sends PRMs.
Disable Does not generate and send PRMs.
Table 4-10. ISDN PRI DBM Physical Interface Options (2 of 3)