long T1 cable / service-module t1 lbo

[paublo]

Hi we have a t1 that needed to be extended from the smartjack. we ran cat 5 from the jack to the router and it was about 900 ft.

As expected im seeing some input errors on the a cisco 1700's WIC.

I know i can change the build out of the line but how can i do that with the service-module t1 lbo.

will this command control just outgoing signal?

in the cisco document below it says that the command above will decrease outgoing signal dont i want to increase it?



service-module t1 lbo

To configure the CSU line build out (LBO) on a fractional T1/T1 CSU/DSU module, use the service-module t1 lbo interface configuration command. Use the no form of this command to disable line build out.

service-module t1 lbo {-15 db | -7.5 db | none}

no service-module t1 lbo {-15 db | -7.5 db | none}
Syntax Description

-15 db


Decreases outgoing signal strength by 15 dB.

-7.5 db


Decreases outgoing signal strength by 7.5 dB.

none


Transmits packets without decreasing outgoing signal strength.

 

[paublo]

I think i found what i need, i got to go -15 db

ATTENUATION OF AMPLITUDE (VOLTS or AMPS)
Formula is dB=20*log(A1/A2)

DeciBels Output Signal Strength
-3dB 0.707x
-6dB 0.5x
-10dB 0.316x
-20dB 0.1x
-30dB 0.032x
-40db 0.010x