When using the cablelength command on my T1 controller, what exactly do we want to go by? Is it from the router to the NIU or the router to the smartjack? Thanks for any help with this.
Line build-out (LBO) compensates for the loss in decibels based on the distance from the device to the first repeater in the circuit. A longer distance from the device to the repeater requires that the signal strength on the circuit be boosted to compensate for loss over that distance.
To configure transmit and receive levels for a cable length (line build-out) longer than 655 feet for a T1 trunk with a channel service unit (CSU) interface, use the cablelength long controller configuration command. To configure transmit attenuation for a cable length (line build-out) of 655 feet or shorter for a T1 trunk with a DSX-1 interface, use the cablelength short controller configuration command.
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