4-29
Cisco Aironet 1570 Series Outdoor Access Point Hardware Installation Guide
OL-32138-01
Chapter 4 Installing Other Components
Powering the Access Point
Connecting PoC Power to the Access Point
The Power-over-Cable (PoC) configuration contains a cable modem, RF splitter (within the AP), and a
cable stinger connector. The cable stinger port for Power-over-Cable connections is labeled '1' on the
base of the AP (see
Note
To ensure system performance, with respect to immunity from external electromagnetic fields, use a well
shielded coaxial cable, preferably a quad-shield cable.
Note
The AP1572IC and AP1572EC versions of the AP are classified as a type “Hazardous Voltage
Secondary” circuit as per the UL/IEC/EN 60950-1 safety standard. The cable distribution network used
with this versions must provide transient reduction to the level for this type of circuit classification (that
is, 500V transient/lightning surge).
To connect cable PoC power to the access point, follow these steps:
Step 1
Ensure that all power sources have been disconnected from the access point and that the AP is properly
grounded. See
Grounding the Access Point, page 4-12
.
Warning
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit.
Statement 1028
Step 2
Remove the attenuator plug (port labeled '7'), and the Shunt plug (port labeled '8') from their ports on
the back of the AP. Follow your cable company's procedures to measure the cable signal strength and
possibly adjust signal attenuation externally to the access point or on the RF splitter.
For more information on the attenuator and shunt ports, see
Installing Attenuators, Fuses, and Shunts,
Step 3
The Cisco-supplied cable stinger connector pin is 29-100357-01. If you are using a third-party cable
stinger connector pin, then cut it down to the correct length using the trim measure provided right next
to the Power-over-Cable port (labeled '1' on the base of the AP).
The cable stinger connector pin must be 1.70 ± 0.05 inch (43.1 ± 1.2 cm) in length, but your are
encouraged to use the trim measure on the AP as the scale of measure.
Step 4
Insert the cable stinger connector pin into the Power-over-Cable port. The Power-over-Cable port is
equipped with a spring-loaded stinger seizing mechanism. Hence, push the stinger all the way in until
the threads hit.
Step 5
Thread the cable stinger connector ring into the PoC connector opening. Use an adjustable wrench to
tighten the connector to 6 to 7 ft lbs (8.1 to 9.5 Nm).
Step 6
Connect the cable company's PoC cable to cable stinger plug as per their specifications.
Step 7
Turn on cable PoC power.
Step 8
Reinstall the RF splitter shunt plug, and the attenuator plug.
