Calix GigaPro p4 GPR1027E Installation Manual page 16

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The GigaPro p4 system includes an 802.3at Power over Ethernet (PoE) Powered Device (PD). The p4
system accepts PoE power via an Ethernet data cable connected to its WAN uplink port.
To employ the PoE option, you must provide the following:
1. Standard PoE power sourcing equipment
apply power to the Ethernet cable. Install the PoE injector or switch at an indoor location
upstream of the p4 system, between it and the ONT.
2. An Ethernet data cable for dual-purpose use —as the network uplink connection and as the PoE
power input. Use Cat6 Ethernet cable; maximum 328-foot (100m) length.
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Note: To ensure the best possible performance, Calix recommends using a PSE offering from Calix
because these devices have been thoroughly tested for all supported use cases. Calix PSE options
include a PoE injector (100-06005) and a PoE++ switch (100-05774).
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Note: The Calix PoE switch option (GPR8802x) is also an ONT, so separate switch and ONT
equipment is not required when using a GPR8802x for PoE power supply.
Note: Under-powered PoE systems may experience a decrease in over-all CPU frequency to
compensate for a lower power source. If the CPU cannot compensate appropriately, radio power
may drop which will result in lower Wi-Fi performance.
Proprietary Information: Not for use or disclosure except by written agreement with Calix.
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(PSE) —either a PoE injector
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or PoE switch — to