Cisco AP-702W Deployment Manual - Page 7

Browse online or download pdf Deployment Manual for Wireless Access Point Cisco AP-702W. Cisco AP-702W 27 pages. Aironet series

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AP-702W

Figure 7

Physical Dimensions for the AP-702W Bracket in Millimeter

AP-702W Powering Options

The AP-702W is designed to accept power via Power over Ethernet (PoE) or by using a local "brick"

style power supply. Because the AP-702W has the ability to provide PoE out on port #4, the unit draws

in an excess of 15.4 Watts (802.3af) specification, and therefore it is recommended that PoE+, 802.3at,

or local power supply Cisco part number AIR-PWR-C be used.

When the AP is first powered on, if powered via Power over Ethernet (PoE) it will negotiate power using

the Cisco Discovery Protocol (CDP) and/or Link Layer Discovery Protocol (LLDP). By using these

methods, the AP-702W will ask for 15.4 W initially starting up with that amount of power. During the

Power On Self Test (POST) it will discover that it has a port on PSE LAN4 capable of producing PoE

out, so it will then attempt to negotiate for additional Ethernet power via the same methods for that port.

If additional power is available, it will switch from 802.3af (15.4 W power) to PoE Plus / 802.3at power.

The amount of power it negotiates varies with the version of code being used.

If the code version is 7.6, it will request 30 W. If the code version is 8.x, it will request 22.1 W. If the

AP is successful in negotiating the higher PoE power from an 802.3at or PoE+ source, the AP-702W will

then come up and allow the PSE LAN4 port to provide Class 2 PoE out at 6.49 W (7W with cable losses).

If the AP is not successful in negotiating the higher PoE power value from 802.3at or PoE+, it will

continue to use 15.4 W (802.3af) power and continue with PoE out on the PSE LAN4 port disabled.

Cisco Aironet Series 702W Access Point Deployment Guide