Cisco Cisco 1 GHz GainMaker Amplifier Guía De Instalación
Chapter 2 Installation and Configuration
38
Removing and Installing AC Shunt Power Directors
The amplifiers draw AC power from the coaxial cable. This AC power comes from an
external AC power supply.
external AC power supply.
WARNING:
When AC is applied from RF ports to units downstream, the downstream
equipment shall also be located in a restricted access location (access restricted
to service personnel).
equipment shall also be located in a restricted access location (access restricted
to service personnel).
Power can come from the input or output ports, and each amplifier can pass or block
AC power flow on any port without affecting RF continuity. However, at least one
port must pass AC power to bring power into the amplifier.
AC power flow on any port without affecting RF continuity. However, at least one
port must pass AC power to bring power into the amplifier.
To set the power direction, install AC shunt power directors for the ports through
which you wish to pass AC.
which you wish to pass AC.
Note: A red AC shunt power director is included with the unit. The red shunt is used
to activate the port that supplies power. The red shunt should be removed before
installing or removing the amplifier module from the housing.
to activate the port that supplies power. The red shunt should be removed before
installing or removing the amplifier module from the housing.
CAUTION:
RF connectors and housing seizure assemblies can be damaged if AC shunt
power directors are not removed from the amplifier before installing or
removing the amplifier module from the housing.
RF connectors and housing seizure assemblies can be damaged if AC shunt
power directors are not removed from the amplifier before installing or
removing the amplifier module from the housing.
To Remove and Install AC Shunt Power Directors
Complete the following steps to remove and install AC shunt power directors.
1 Open the housing. Refer to To Open the Amplifier Housing (on page 13).
2 To remove a power director, pull it straight out from the amplifier module.
1 Open the housing. Refer to To Open the Amplifier Housing (on page 13).
2 To remove a power director, pull it straight out from the amplifier module.
3 To install a power director, refer to the systems design print to determine AC
power routing and install the AC shunt power directors in the required locations.
4 Close the housing. Refer to To Close the Amplifier Housing (on page 39).