Cisco AP-702W Guida di riferimento rapido

Cisco Systems, Inc.

www.cisco.com

Cisco Aironet Series 702W Access Point

Deployment Guide

Last Updated: August, 2014

Cisco Aironet Series 702W Access Point Deployment Guide

Introduction

This document covers the Cisco 702W Series Access Points theory of operation and installation as part

of a Cisco Wireless LAN (WLAN) solution. Subjects related include:

•Overview of the AP-702W.

•Physicals / Hardware details, mounting options, bracket choices, and installation considerations.

•Powering options, antenna patterns, switched ports, AP placement, and so on.

This document is intended for trained and experienced technical personnel familiar with the existing

Cisco Wireless Networking Group (WNG) product line and features.

AP-702W

Overview

The Cisco AP-702W Series Access Point targets Multi-Dwelling-Unit (MDU) deployments, such as

customers requiring support for Higher Education, Hospitality, college dorm-rooms, K-12 classrooms,

and healthcare, seeking a high-performance in-room Wireless + Wired Access Device.

The AP-702W is a wall plate Access Point (AP) designed to combine the features of an AP and a four

port switch into a single unit with a small footprint targeting education and hospitality markets.

Note Do not confuse AP-702W with AP-702i, which is a conventional AP designed for ceiling mounting and

does not have additional Ethernet ports for device connectivity.

AP-702W Features Include

•Combined hardware switch and wireless AP.

•4 x 10/100/1000BASE-T local Ethernet ports for wired device connectivity.

•1 local Ethernet port includes Power-Over-Ethernet (PoE) out.

•1 x 10/100/1000BASE-T Power-Over-Ethernet (PoE) uplink port.

•802.11n 2x2:2 simultaneous dual band 2.4 GHz and 5 GHz support.

•Compact form factor designed for in-room installations.

•Integrated 2.4 GHz 2 dBi and 5 GHz 4 dBi antennas.

•Small footprint 6 x 4 x 1.6 inches.

The AP-702W, while similar to the Cisco AP-700 series with regards to performance, is different and

embodies a wall mount design and should not be ceiling mounted.

Cisco Aironet Series 702W Access Point Deployment Guide

AP-702W

Figure 1 Unit can be installed in less than a minute with a simple screwdriver.

Cisco AP-702W Features

Cisco Aironet 702W Series:

•Wi-Fi Standards - 802.11a/b/g/n

•Max Data Rate - 300 Mbps per radio

•Radio Design MIMO: Spatial Stream - Dual-Radio, 2x2:2

•Local Ethernet Ports - 4xGE

•Powering Capability - 1xGE port PoE out

•Data Uplink (Mbps) - 10/100/1000

•Power - 802.3af/at, AC Adapter

•Security Lock - #6 Torx screw, Kensington lock

Additional technical specifications include:

•Support for Cisco Radio Resource Management (RRM)

•Maximum number of clients per AP = 200

•Support for Cisco Band Select

•Support for VideoStream and Adaptive wIPS

•Rogue AP detection support

The AP-702W is similar in features and functionality to other Cisco APs with the exception that at first

release a few features are not supported.

AP-702W Non-Supported features as of version 7.6.100.120:

•Mesh Support

•Autonomous

•Office Extend

•Explicit Beam-forming

•Cisco ClientLink

Cisco Aironet Series 702W Access Point Deployment Guide

AP-702W

•IGMP Snooping for IP TV multicast Join

•Managed local-switched ports

•Tunneling Ethernet Ports

•Split-Tunneling Ethernet ports

Note Many of these features are targeted for later releases. Please check the release notes of the current

software for more details.

Figure 2 AP-702 Physicals Characteristics

Figure 3 AP-702 Ethernet Switched Ports

Note LAN4 can provide PoE out.

Cisco Aironet Series 702W Access Point Deployment Guide

AP-702W

Figure 4 The AP may be secured into the bracket with a hidden tamper resistant screw

A sticker covers the #6 Torx screw to prevent detection. Also, a Kensington lock may be used as well.

AP-702W Installation

As mentioned in Figure 1, the AP-702W is designed to be mounted on an existing electrical box or

network outlet box. Because of the vent holes on the device, it is not designed for ceiling mounting but

may be mounted on the wall close to the ceiling so long as there is at least a 3-inch gap between the top

of the unit and the ceiling for heat dissipation.

The default wall bracket is designed to allow the four switched ports to be accessible for downstream

devices. It is not recommended (or supported) to use the downstream switched ports to connect

additional APs or other heavy upstream traffic devices such as additional switches and so on.

The Ethernet ports in AP-702W are disabled by default and can be enabled by using the

enable_port port id command, where port ID can range from 1 - 4.

Note By default, the 4 switched ports on the AP are disabled.

Cisco Aironet Series 702W Access Point Deployment Guide

AP-702W

Figure 5 Standard Bracket AIR-AP-BRACKET-W

Figure 6 Optional AIR-AP-BRACKET-WP can be used to secure the four switched ports

Cisco Aironet Series 702W Access Point Deployment Guide

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

AP-702W

Note At this time there is no method of disabling the “ask” for additional power if high power is

present. There is a feature request to better handle this in the future, but if the goal is to have the

AP-702W not ask for additional power, then a work around would be to configure the powering

device to only allocate 15.4 W (802.3af) power on the port that the AP-702W is attached.

‘

Local power supply AIR-PWR-C= may be used. Do not use AIR-PWR-B.

Note If PoE+ or 802.3at power source is present, the AP will negotiate higher power. If this is not

desired, a work around is to limit PoE on switch to 15.4 W until addressed in release 8.1.

Note If the unit is powered by 802.3at (PoE+) then the device can deliver PoE out of port 4 at 7 W

output. If 802.3af (15.4 W) is desired out of Port 4, then the local power supply AIR-PWR-C

must be used.

Table 1 PoE Requirements – if you are using PoE out on PORT 4, PoE+ or local power supply is

required

Description AP Functionality

PoE

Budget1

(Watts)

802.3af Or

PWRINJ5 E-PoE

802.3at PoE+

PWRINJ4

702W Power

Source

Used

700W - Out of the

Box Powered by

AIR-PWR-C=

(AC supply)

2x2:2 (both bands) PSE

LAN4 port PoE @ 15.4 W

29.2 W NA NA NA

700W – Out of the

Box Powered by

ePoE or 802.3at

2x2:2 (both bands) PSE

LAN4 port PoE @ 7 W

22.12No Yes Yes

700W – Out of the

box Powered by

PoE 802.3af

2x2:2 in both bands PSE

LAN4 port no PoE.

15.4 Yes NA NA

1. This is the power required at the PSE, which is a switch or injector.

2. In the 7.6 version code, the draw is 30 W and in the 8.0 code, the draw is now reduced to 22.1 W.

Cisco Aironet Series 702W Access Point Deployment Guide

AP-702W

Figure 8 AIR-PWR-C is the Local Power Supply (Do not use AIR-PWR-A or AIR-PWR-B)

Table 2 Cisco Part # AIR-PWR-C=, higher current than AIR-PWR-B=,

needed for POE out port on 702W

Output DC Voltage 48V

Rated Current 0.84A

Current Range 0.1 ~ 0.84A

Rated Power

(max.)

40W

Ripple and

Noise (max.)

240mVp-p

Input Voltage Range 80 ~ 264VAC

113 ~ 370VDC

Frequency

Range

47 ~ 63HZ

Efficiency

(Typ.)

91%

AC Current

(Typ.)

1 A / 115VAC

0.5A / 230VAC

INRUSH

Current (Typ.)

65A / 230VAC

Cisco Aironet Series 702W Access Point Deployment Guide

AP-702W

Earlier Cisco-Aironet power supplies are rated at 48 VDC @ 380 mA. These earlier supplies do not have

enough current to allow the AP-702W to provide PoE out on port 4.

AP-702W Antenna System

The AP-702W has two integrated dual band antennas designed for best performance when mounted to

an electrical box in a wall mount configuration.

Figure 9 Antenna 1 and Antenna 2 mounted on the Top and Left Side of the AP-702W

Avoid mounting the AP in locations where metal objects would be near the antennas.

The antenna gain is 2 dBi @ 2.4 GHz and 4 dBi @ 5 GHz designed to radiate in a front Omni-directional

pattern with 25 dB of isolation between bands.

Table 3 Technical Specifications of the AP-702W Antenna System

Operating Frequency

Ranges

2.4 - 2.5 GHz 5.15 - 5.85 GHz

Nominal Input

Impedance

50 Ohms 50 Ohms

VSWR 2:1 Max 2:1 Max

Peak Gain 2 dBi 4 dBi

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