Cisco GS7000 Installation And Operation Manual page 120

Chapter 4 Setup and Operation
If your network requires a different value, remove the field replaceable 18 dB
equalizers and replace with equalizers of the appropriate value. See Forward
Equalizer Chart (on page 156).
15 Continue to Reverse Path Setup Procedure or close the housing according to
Opening and Closing the Housing (on page 122).
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