Rev F Configuration 4-1
CHAPTER 4
Configuration
This chapter contains the procedures for the initial setup of the E7 Line Extender. Included are power
supply set up and testing, balancing carrier levels, temperature compensation, forward and return
balancing, as well as various upgrade kit installation instructions.
Power Supply Configuration—page 4-1
Calculating Balancing Carrier Levels—page 4-5
Temperature Compensation —page 4-5
Forward Balancing—page 4-8
Return Balancing—page 4-12
Active Return Upgrade Kit Installation—page 4-16
Power Supply Configuration
Power Supply Setup
Refer to Fuse/Brass Shorting Bar (Slug) Replacement on page 6-1 for all fuse removal and installation
procedures.
➤ To set up the power supply
1. Open the housing. (Refer to Housing Opening on page 3-4 if necessary.)
CAUTION: To prevent hybrid damage, C-COR recommends that all amplifiers in a power
supply group have PADS and equalizers installed in the forward RF path before
energizing. The initial recommended accessory values are shown on your system maps.
WARNING: Hazardous voltages are present. Use approved safety equipment and
procedures.
CAUTION: The MAIN FUSE must be the specified value (See Table 4.1) to adequately
protect the power supply and amplifier. Installing a slug or surge terminator may damage
the amplifier.
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