TP-Link Pharos CPE220 User manual

Installation Guide
Outdoor CPE
CPE210 / CPE220 / CPE510 / CPE520

Contents
Overview 01
Hardware Connection 04
Site Consideration 04
Connection and Installation 06
Lightning & ESD Protection 07
Software Conguration 09
Logging into the PharOS 09
Conguration for Typical Applications 11
Antenna Alignment 13
Specications 14
FAQ 15

01
Overview
TP-Link's Pharos series outdoor CPEs are dedicated to outdoor wireless
network solutions. This guide is applicable to products including CPE210,
CPE220, CPE510 and CPE520.
• Package Contents
Installation Guide
Outdoor CPE
CPE210 / CPE220 / CPE510 / CPE520
Pharos CPE Passive PoE
Adapter
Pole Mounting
Straps
Installation Guide
Power Cord
• LED Explanation
The following picture takes CPE520 as an example.
POWERLAN0LAN1
AP/AP Router mode:
All four LEDs remain solid.
Client/Bridge/Repeater/AP Client Router mode:
That the more LEDs lit will indicate better wireless signal strength.
Flashing: A device is connected to this port, and is active.
On: The CPE is powered on.
On: A device is connected to this port, but there is no activity.

02
• Panel Layout
Pharos CPE220/CPE520:
Shielded Ethernet
Port LAN0 (Passive
PoE in)
RESETShielded Ethernet
Port LAN1
Grounding
Terminal
Pharos CPE210/CPE510:
Shielded Ethernet Port
LAN (Passive PoE in)
Grounding
Terminal
RESET

03
Passive PoE Adapter:
Remote Reset
Press and hold for 8 seconds to
reset the CPE to its factory defaults.
Power LED
The Power LED is on when the
passive PoE adapter is working
normally.

04
Hardware Connection
1. Site Consideration
• Mounting Height
Ensure a clear line of sight between the wireless devices for an optimum
performance. An elevated location is recommended as obstacles like
trees, buildings and large steel structures will weaken the wireless signal.
See 'Q2' in 'FAQ' for details about how to calculate the minimum mounting
height of the devices.
Line of Sight
Side View

05
• Orientation
Install the CPE devices with the front facing the intended signal receiving
devices. You can orient the devices with the assistance of Google Maps,
GPS and some landmarks according to the horizontal beamwidth listed
below.
Models CPE210 CPE220 CPE510 CPE520
Horizontal Beamwidth 65° 60° 45° 45°
A
shenzhen
B
Line of Sight
Horizontal
Beamwidth

06
2. Connection and Installation
Please connect and install the device as shown in the gure below. The
following introduction takes CPE520 as an example.
Ethernet cable length up to 60m
You should prepare an adequate
Ethernet cable to connect the CPE
and the passive PoE adapter.
Shielded CAT5e (or above) cable
with ground wire is recommended
(refer to the next section).
Connect to a computer,
router or switch.
(Depending on your
intended usage and/or
network topology.)
At the selected site,
approximately align the CPE
to the direction that you
have oriented.
Slide to replace the cover
of the CPE when all
connections are nished.
LAN0
PoE LAN

07
3. Lightning & ESD Protection
Proper grounding is extremely important for outdoor devices.
By using shielded CAT5e (or above) cable with ground wire for the
connection and the provided PoE adapter (method 1), you can eectively
eliminate ESD attacks. If you use the general CAT5e cable for the
connection, then it is necessary to connect the grounding terminal of the
CPE to earth ground through grounding cable (method 2).
The following introduction takes CPE520 as an example.
CPE
Grounding
Terminal
Earth Ground
Two Methods:
2
2
1
1
1
1
PoE Adapter with
Earth Ground
Grounding
Cable
Shielded CAT5e (or above) Cable
with Ground Wire
Grounding Terminal and Cable
Shielded CAT5e (or above)
Cable with Ground Wire
Grounded 3-wire
Power Outlet

08
Twisted Pair
Ground Wire
Shielded RJ45 Connector
Secondary Cable Shield
Cable Shield
Sheath
Shielded CAT5e (or above) Cable with Ground Wire

09
Software Conguration
This chapter introduces the login to the PharOS Web Interface and the
software congurations.
1. Logging into the PharOS
1. Before accessing the PharOS Web Interface, you need to assign
a static IP address 192.168.0.X (X ranges between 2 and 253, e.g.
192.168.0.10) to your computer.
2. Open a web browser, type http://192.168.0.254 into the address eld
and press Enter (Windows) or return (Mac). It is recommended to use
the latest version of Google Chrome, Firefox or Safari.

10
3. Enter admin for both User Name and Password. Read and agree the
terms of use, then click Login.
4. Change the default User Name and Password to protect your CPE.
Let’s start conguring the CPE.
For subsequent logins, use the new username and password.

11
2. Conguration for Typical
Applications
The typical topology is as follows. A wireless bridge is built between two
locations that are far from each other. Follow the instructions below to
congure the Access Point and the Client.
Access Point Client
Computer
IP camera
LAN: 192.168.0.254 LAN: 192.168.0.2
Congure the Access Point (AP)
1. Log in to PharOS and go to the Quick Setup page.
2. Operation Mode: Select Access Point and click Next.
3. LAN Settings: Click Next.
4. Wireless AP Settings:
a. Create a new SSID (Network name) for your wireless network.
b. Select WPA-PSK/WPA2-PSK for the Security method and create
a PSK Password to protect your AP.
c. Enter the distance between the Access Point and the Client into
the Distance Setting eld.
d. Select the MAXtream checkbox (Refer to Q3 in FAQ for details
about MAXtream), and click Next.
5. Finish: Verify your settings and click Finish to complete the
conguration.
Congure the Client
1. Log in to PharOS and go to the Quick Setup page.
2. Operation Mode: Select Client and click Next.

12
3. LAN Settings: Change the IP Address to 192.168.0.X (X ranges
between 2 and 253), the same subnet with the access point, and
click Next.
4. Wireless Client Settings:
a. Click Survey and select the SSID of the Access Point in the AP list,
then click Connect.
b. Select WPA-PSK/WPA2-PSK from the Security option, enter the
same PSK password and distance value of the Access Point, then
click Next.
5. Finish: Verify your settings and click Finish to complete the
conguration.

13
Antenna Alignment
In order to get the best performance, you can precisely align the direction
of the CPE with the assistance of Wireless Signal Quality on
STATUS page of the PharOS Web Interface.
Adjust the direction of the CPE until the
device reaches the highest SNR.
WISP
WISP

14
Specications
HARDWARE FEATURES
Dimensions CPE520/CPE220: 275.83*79*60.3mm
CPE510/CPE210: 224.34*79*60.3mm
Interface
CPE520/CPE220 CPE510/CPE210
LAN0: 10/100Mbps
Ethernet Port(PoE IN)
LAN1: 10/100Mbps
Ethernet Port
LAN: 10/100Mbps
Ethernet Port(PoE IN)
GND: Grounding Terminal for Lightning Protection
RESET: Button to restore the device to Factory
Default
Power Supply 24V Passive PoE Adapter Included
ESD Protection115kV
Lightning Protection1Up to 6kV
Operating
Temperature -40℃to 70℃ (-40 ℉to 158 ℉)
Operating Humidity 10% to 90 %
Certication CE, FCC, RoHS, IP55
WIRELESS FEATURES
Models CPE210 CPE220 CPE510 CPE520
Antenna Gain 9dBi 12dBi 13dBi 16dBi
Horizontal
Beamwidth/Elevation
Beamwidth2
65°/ 35° 60°/ 30° 45°/ 30° 45°/ 30°
802.11 Standards 11b/g/n 11b/g/n 11a/n 11a/n
Note:
1. Estimation is based on copper grounding cable and shielded CAT5e cable
with ground wire.
2. Beamwidth values may vary throughout operating frequency.

15
FAQ
Q1. How to restore the CPE to its factory default
settings?
With the CPE powered on, press and hold the RESET button on the
CPE or the Remote Reset button on the passive PoE adapter for
about 8 seconds until the Wireless Signal Strength LEDs ash.
Method 1:
The following picture takes CPE520 as an example.
RESET Button
Press & hold for about 8
seconds
Method 2:
Remote Reset Button
Press & hold for about 8 seconds

16
Q2. How to calculate the minimum mounting height
of the devices?
In order to maximize the received signal strength of the devices,
installers need to minimize the eect of the out-of-phase signals,
which is caused by obstacles in the path between the transmitter
and the receiver. Fresnel Zone is a usual method to calculate this
path, as shown in the formula and the gure below.
h = the height of
obstacle at this point
H h+r*(1 40%)
(H is the height of the CPE)
d2
r
d1
where,
r = Fresnel zone radius in meters
c = 3x108 m/s, speed of light
f = operating frequency of the devices in
Hz
d1 & d2 = the distances between the
point and the devices in meters
f
c
dd
dd
r⋅
+
×
=
21
21
For example, assume d1 is 2km, d2 is 8km, and f is 2.4GHz, then
r would be 14.142m. Considering a toleration of 40%, allowable
radius would be 8.485m. Assume h is 10m, then the result of the
minimum mounting height based on this point would be 18.485m.
Similarly, calculate the results based on all the points where there are
obstacles, and the maximum value would be the nal result.
For more information, please refer to:
http://en.wikipedia.org/wiki/Fresnel_zone

17
Q3. What is Pharos MAXtream?
Pharos MAXtream is a proprietary protocol developed on the basis
of Time Division Multiple Access (TDMA) by TP-Link.
The MAXtream technology has the following advantages:
• Eliminates hidden node collisions & improves channel eciency.
• Lower latency, higher throughput, larger network capacity &
more stability.
• Improves the QoS for video, voice and sound data stream.
By dividing the timing of transmission into dierent time slots,
MAXtream allows the Pharos devices to transmit in rapid
succession, one after another, each using its own time slot to
transmit and receive their own frames, which greatly reduces the
chance of collision.
Pharos MAXtream is a non-standard Wi-Fi protocol that is only
compatible with TP-Link’s Pharos series products. Please notice
that you will not be able to connect other Wi-Fi devices to an AP with
MAXtream enabled.
Q4. How can I use Spectrum Analysis to nd the
appropriate channel for the devices?
1. Log in to PharOS, click Spectrum Analysis in the tools drop-down
list, a window will pop up to remind you that all wireless connections
will be lost during spectrum analysis. Click Ye s to continue to the
Spectrum Analysis page.
2. Click Start, the PharOS will begin to analyze the power of
frequency. Observe the curves for a period of time, and then
click Stop. Note that the relatively low and continuous part of the