Network Hardware User Manual

Configuration Options
A-12
8700-A2-GB20-00April 2000
Table A-7. System Options (2 of 2)
Telco Initiated Loopback
Possible Settings (Models 8747, 8777): Enable, Disable
Default Setting: Enable
Determines if the unit will respond to Telco loopback commands on the DSX-1 interface.
See Telco-Initiated Tests in Chapter 8, Testing.
Enable – The unit will respond to Telco loopback commands.
Disable – The unit will not respond to Telco loopback commands.
Remote Telco Line Loopback
Possible Settings (Models 8747, 8777): Enable, Disable
Default Setting: Disable
Determines if the unit will perform a Telco initiated loopback on just the local unit or if
the loopback will be performed on the remote DSL unit. See Telco-Initiated Tests in
Chapter 8, Testing.
Enable – The loopback will be in the remote unit.
Disable – The loopback will be local.
G.703 Line Termination
Possible Settings (Model 8779): 75 ohms, 120 ohms
Default Setting: 120 ohms
Specifies the impedance of the G.703 interface
75 ohms – The G.703 interface impedance is 75 ohms unbalanced.
120 ohms – The G.703 interface impedance is 120 ohms balanced.