Cisco Systems 102095 Users Manual
GETTING STARTED GUIDE
Cisco Aironet 1850 Series Access Points
First Published: April 29, 2015
1 About this Guide
2 Introduction to the Access Point
3 Safety Instructions
4 Unpacking
5 Configurations
5 Access Point Ports and Connectors
6 Preparing the Access Point for Installation
7 Installation Overview
8 Performing a Pre-Installation Configuration
9 Mounting and Grounding the Access Point
10 Powering the Access Point
11 Configuring and Deploying the Access Point
12 Troubleshooting
13 Checking the Access Point LEDs
14 Declarations of Conformity and Regulatory Information
15 Configuring DHCP Option 43
16 Access Point Specifications
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1 About this Guide
This Guide provides instructions on how to install and configure your Cisco Aironet 1850 Series
Access Point. This guide also provides mounting instructions and limited troubleshooting procedures.
The 1850 Series Access Point is referred to as the access point in
this document.
2 Introduction to the Access Point
The Cisco Aironet 1850 series access point is an 802.11 a/b/g/n/ac (Wave 2) access point, with both
external antenna (AP1852E) and internal antenna (AP1852I) models. These access points can be
mounted on a wall or a ceiling, and supports 2.4 GHz 3x4 802.11b/g/n MIMO and 5 GHz 4x4 802.11
a/n/a
c (Wave 2) MIMO applications simultaneously.
Access Point Model Numbers and Regulatory Domains
The Cisco Aironet 1850 series access point comes in both universal regulatory domain and
non-universal regulatory domain model number formats. See the following table for the model number
formats.
Universal Regulatory Domain
Model Number Format
External antenna models AIR-AP1852E-UXK9 AIR-AP1852E-x-K9
Internal antenna models AIR-AP1852I-UXK9 AIR-AP1852I-x-K9
The ‘UX’ in a model number indicates a universal regu
how to set the regulatory domain and country configurations of a universal regulatory domain access
point, see the Cisco Aironet Universal AP Priming and Cisco AirProvision User Guide, at:
http://www.cisco.com/c/en/us/td/docs/wireless/access_poi
The ‘x’
one of these supported regulatory domains: A, B, C, D, E, F, H, I, K, N, Q, R, S, T, Z.
placeholder in the other model numbers represents the regulatory domain. The ‘x’ can be any
latory domain access point. For information on
nt/ux-ap/guide/uxap-mobapp-g.html
Non- Universal Regulatory
Domain Model Number Format
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Access Point Features
The features of the 1850 series access points are:
• Supported mode of operation are:
–
Centralized
–
Sniffer
• Radio features supported are:
–
2.4 GHz and 5 GHz concurrent radios
–
2 GHz radio with 3TX x 4RX and three spatial streams SU-MIMO
–
5 GHz radio with 4TX x 4RX 802.11ac Wave 2 capable with four spatial stream SU-MIMO
and 3 spatial streams MU-MIMO
–
802.11ac based Transmit Beamforming
–
QOS
–
RRM
–
Rogue Detection
–
BandSelect
• The AP supports the following hardware external interfaces:
–
RS-232 Console Interface through RJ-45
–
Local Power DC Jack
–
Recovery push button (enables partial or full system configuration recovery)
–
USB 2.0 Port (Disabled, but present for future support)
–
One multi-color LED status indicator. See () for information on the colors of the LED status
indicator.
–
1 x 10/100/1000 Mbps WAN Ethernet Port (RJ-45), PoE
–
1 x 10/100/1000 Mbps Auxiliary Ethernet port (RJ-45) (No PoE)
• 1852I model access point has 4 integrated 2.4 GHz/5 GHz dual-band antennas located near each
corner of the 1852I access point under the top housing. Peak antenna gain is approximately 3
dBi in 2.4 GHz and 5 GHz bands respectively.
and 5
• The 1852E model supports up to four external antennas using the RTNC antenna connectors on
the top of the access point. The following Cisco external antennas are supported on the 1852E:
–
AIR-ANT2524DB-R
–
AIR-ANT2524DG-R
–
AIR-ANT2524DW-R
dBi
4
–
AIR-ANT2535SDW-R
–
AIR-ANT2524V4C-R
–
AIR-ANT2566P4W-R
–
AIR-ANT2544V4M-R
A full listing of the access point's features and specification are provided in the Cisco Aironet 1850
Series Access Point Data Sheet, at the following URL:
(URL to be added when available)
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3 Safety Instructions
Translated versions of the following safety warnings are provided in the translated safety warnings
document that is shipped with your access point. The translated warnings are also in the Translated
Safety Warnings for Cisco Aironet Access Points, which is available on Cisco.com.
Warning
Warning
Warning
Warning
IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury.
Before you work on any equipment, be aware of the hazards involved with electrical
circuitry and be familiar with standard practices for preventing accidents. Use the
statement number provided at the end of each warning to locate its translation in the
translated safety warnings that accompanied this device.
SAVE THESE INSTRUCTIONS
Read the installation instructions before you connect the system to its power source.
Statement 1004
Installation of the equipment must comply with local and national electrical codes.
Statement 1074
This product relies on the building’s installation for short-circuit (overcurrent)
protection. Ensure that the protective device is rated not greater than:
20A.
Statement 1005
Statement 1071
Warning
Caution The fasteners you use to mount an access point on a ceiling must be capable of
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Do not operate your wireless network device near unshielded blasting caps or in an
explosive environment unless the device has been modified to be especially qualified for
such use.
maintaining a minimum pullout force of 20 lbs (9 kg) and must use a minimum of 4 holes
on the mounting bracket, or a minimum of 2 holes when mounting on a network box.
Statement 245B
Caution This product and all interconnected equipment must be installed indoors within the same
building, including the associated LAN connections as defined by Environment A of the
IEEE 802.3af/at Standard.
Note The access point is suitable for use in environmental air space in accordance with section
300.22.C of the National Electrical Code and sections 2-128, 12-010(3), and 12-100 of the
Canadian Electrical Code, Part 1, C22.1. You should not install the power supply or power
injector in air handling spaces.
Note Use only with listed Information Technology Equipment (ITE) equipment. For more
information on ITE equipment, refer to article 645 of the latest National Electrical Code
(NEC).
4 Unpacking
To unpack the access point, follow these steps:
Step 1 Unpack and remove the access point and the mounting accessories and antennas, if included
for external antenna model access points, from the shipping box.
Step 2 Return any packing material to the shipping container and save it for future use.
Step 3 Verify that you have received the items listed below. If any item is missing or damaged, contact
your Cisco representative or reseller for instructions.
–
The access point
–
Mounting bracket (AIR-AP-BRACKET-1= or AIR-AP-BRACKET-2=, only if selected when
you ordered the access point)
–
T-RAIL clips and Channel Adapter (only if selected when you ordered the access point)
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5 Access Point Ports and Connectors
The 1850 series access points have an LED indicator on the face of the unit, above the Cisco logo, as
shown in Figure 1.
Figure 1 Access Point LED Indicator Position on both
LED indicator
1
The ports and connections on the access point are shown in Figure 2.
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353813
1 2 3 4 5 6
7
Figure 2 Access Point Ports and Connections
Security hasp for padlocking AP to mounting
1
bracket
Mode (Reset) button
2
RJ-45 console port
3
USB 2.0 port
4
Auxiliary port
5
PoE In port (Ethernet Uplink port)
6
48 V DC input power port
7
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6 Preparing the Access Point for Installation
Before you mount and deploy your access point, we recommend that you perform a site survey (or use
the site planning tool) to determine the best location to install your access point.
You should have the following information about your wireless network available:
• Access point locations.
• Access point mounting options: below a suspended ceiling, on a flat horizontal surface, or on a
desktop.
Note You can mount the access point above a suspended ceiling but you must purchase
additional mounting hardware: See
on page 13 for additional information.
• Access point power options: power supplied by the recommended external power supply (Cisco
AIR-PWR-C), a DC power supply, PoE from a network device, or a PoE power injector/hub
(usually located in a wiring closet).
Note Access points mounted in a building’s environmental airspace must be powered using PoE
to comply with safety regulations.
“Mounting and Grounding the Access Point” section
Cisco recommends that you make a site map showing access point locations so that you can record the
device MAC addresses from each location and return them to the person who is planning or managing
your wireless network.
7 Installation Overview
Installing the access point involves these operations:
Step 1 Performing a Pre-Installation Configuration, page 11 (optional)
Step 2 Mounting and Grounding the Access Point, page 13
Step 3 Powering the Access Point, page 14
Step 4 Configuring and Deploying the Access Point, page 16
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8 Performing a Pre-Installation Configuration
The following procedures ensure that your access point installation and initial operation go as
expected. A pre-installation configuration is also known as priming the access point. This procedure
is optional.
Note Performing a pre-installation configuration is an optional procedure. If your network
controller is properly configured, you can install your access point in its final location and
connect it to the network from there. See the
Network” section on page 18 for details.
Pre-Installation Configuration Setup
The pre-installation configuration setup is shown in Figure 3.
Figure 3 Pre-Installation Configuration Setup
Controller
“Deploying the Access Point on the Wireless
Layer 3
devices
Cisco Aironet
access points
272488
To perform pre-installation configuration, perform the following steps:
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Step 1 Make sure that the Cisco wireless LAN controller DS port is connected to the network. Use
the CLI, web-browser interface, or Cisco Prime Infrastructure procedures as described in the
appropriate Cisco wireless LAN controller guide.
a. Make sure that access points have Layer 3 connectivity to the Cisco wireless LAN controller
Management and AP-Manager Interface.
b. Configure the switch to which your access point is to attach. See the Cisco Wireless LAN
Controller Configuration Guide for the release you are using, for additional information.
c. Set the Cisco wireless LAN controller as the master so that new access points always join with
it.
d. Make sure DHCP is enabled on the network. The access point must receive its IP address
through DHCP.
e. CAPWAP UDP ports must not be blocked in the network.
f. The access point must be able to find the IP address of the controller. This can be
accomplished using DHCP, DNS, or IP subnet broadcast. This guide describes the DHCP
method to convey the controller IP address. For other methods, refer to the product
documentation. See also the
information.
“Using DHCP Option 43” section on page 19 for more
Note The access point requires a gigabit Ethernet (GbE) link to prevent the Ethernet port from
becoming a bottleneck for traffic because wireless traffic speeds exceed transmit speeds
of a 10/100 Ethernet port.
Step 2 Apply power to the access point. See Powering the Access Point, page 14.
a. As the access point attempts to connect to the controller, the LEDs cycle through a green, red,
and amber sequence, which can take up to 5 minutes.
Note If the access point remains in this mode for more than five minutes, the access point is
unable to find the Master Cisco wireless LAN controller. Check the connection between
the access point and the Cisco wireless LAN controller and be sure that they are on the
same subnet.
b. If the access point shuts down, check the power source.
c. After the access point finds the Cisco wireless LAN controller, it attempts to download the
new operating system code if the access point code version differs from the Cisco wireless
LAN controller code version. While this is happening, the Status LED blinks amber.
d. If the operating system download is successful, the access point reboots.
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Step 3 Configure the access point if required. Use the controller CLI, controller GUI, or Cisco Prime
Infrastructure to customize the access-point-specific 802.11ac network settings.
Step 4 If the pre-installation configuration is successful, the Status LED is green indicating normal
operation. Disconnect the access point and mount it at the location at which you intend to
deploy it on the wireless network.
Step 5 If your access point does not indicate normal operation, turn it off and repeat the
pre-installation configuration.
Note When you are installing a Layer 3 access point on a different subnet than the Cisco
wireless LAN controller, be sure that a DHCP server is reachable from the subnet on
which you will be installing the access point, and that the subnet has a route back to
the Cisco wireless LAN controller. Also be sure that the route back to the Cisco
wireless LAN controller has destination UDP ports 5246 and 5247 open for CAPWAP
communications. Ensure that the route back to the primary, secondary, and tertiary
wireless LAN controller allows IP packet fragments. Finally, be sure that if address
translation is used, that the access point and the Cisco wireless LAN controller have
a static 1-to-1 NAT to an outside address. (Port Address Translation is not
supported.)
9 Mounting and Grounding the Access Point
Cisco Aironet 1852 series access points can be mounted in several configurations – on a suspended
ceiling, on a hard ceiling or wall, on an electrical or network box, and above a suspended ceiling.
Go to the following URL for access point mounting instructions:
http://www.cisco.com/c/en/us/td/docs/wireless/access_point/mounting/guide/apmount.html
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10 Powering the Access Point
The AP can be powered using:
• 48 V DC power via the 48VDC port, using Cisco Power Adapter AC DC AIR-PWR-C=. Ensure
that the power cable is routed through the strain relief retention clips cast into the enclosure. See
Figure 4.
• Power-over-Ethernet (PoE) from the Ethernet cable, from an external power source such as the
Cisco Power Injector AIR-PWRINJ4=.You can also use the AIR-PWRINJ5 Cisco Power Injector
but with reduced functionality.
• Any 802.3at (25.5 W) or 802.3af (15.4 W) compliant power injector.
However, when powered by an 802.3af compliant power injector, the access point capabilities will
be reduced to 2x2 with 2 spatial streams for the 2.4GHz radio, 3x3 with 3 spatial streams for the
5GHz radio and the USB port and Auxiliary Ethernet port will also be disabled. With 802.3at
compliant devices the AP provides full operation including the USB port and Auxiliary Ethernet
port.
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