Cisco Cisco Surge-Gap Passives Installation Guide
Description of the Taps and Passives
The following table lists the function of each port for each type of passive.
Passive
Function
Directional coupler
Port 1 = In
Port 2 = Out
Port 3 = Tap
Port 4 = not used
2-way splitter
Port 1 = In
Port 2 = Out 1
Port 3 = Out 2
Port 4 = not used
3-way balanced splitter
Port 1 = In
Port 2 = Out 1
Port 3 = Out 2
Port 4 = Out 3
3-way unbalanced splitter
Port 1 = In
Port 2 = High Out
Port 3 = Low Out 1
Port 4 = Low Out 2
Power inserter
Port 1 = RF/AC
Port 2 = RF/AC
Port 3 = AC input
Port 4 = not used
Required Installation Accessories
One coaxial cable-to-housing connector is required for each feeder port connection.
A housing-to-housing connector may be required to connect the tap or passive
directly to the input or output of another device. When taps that are not
self-terminating are used for end-of-feeder line, one 75 Ω line terminator is required
to terminate the feeder line at the output port.
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