Dahua 5.8GHz Wireless AP/CPE User manual

Dahua 5.8GHz Wireless AP/CPE User Manual
Dahua 5.8GHz Wireless AP/CPE
User Manual
Version：1.0.0
Zhejiang Dahua Technology CO., LTD

Dahua 5.8GHz Wireless AP/CPE User Manual
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File Version Description
Sheet 1 Version Description
Version
Release Time
Revised Chapters
Author
1.0
2014-05-12
Establish
cl
Reference Materials
Manual Purposes
The manual mainly provides the users with some help to get familiar with PFM88X and how to use
PFM88X; especially they can solve some common problems when some troubles occur to the device.
The manual is mainly involved in PFM88X hardware info, various parameters of webpage, configuration
mode, networking mode, malfunction analysis and some other aspects, which can effectively help users
to get familiar with the usage of the device quickly and shorten the time of entry Bridge series products
for users.
Statement
The right of final explanation of this file belongs to Zhejiang Dahua Technology CO., LTD; our
company is not liable for any damage of the device caused by unauthorized use.
Noun Definition and Acronym Description
Sheet 2 Noun Definition and Acronym Description
SN
Definition or
Acronym
Description
1
PFM880
Long-distance wireless transmission server AP
2
PFM881
CPE client

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Table of Contents
1Product Overview.........................................................................................................- 1 -
1.1 Product Introduction............................................................................................................................- 1 -
1.2 Electrical Specifications ......................................................................................................................- 3 -
1.3 Product Packaging List........................................................................................................................- 5 -
1.4 Product Features ..................................................................................................................................- 6 -
1.5 Application Range ...............................................................................................................................- 7 -
1.6 Hardware Description..........................................................................................................................- 7 -
1.7 Hardware Description..........................................................................................................................- 7 -
2Product Installation..................................................................................................... - 9 -
2.1Line Connection....................................................................................................................................- 9 -
2.2Restore Default Factory Setting..........................................................................................................- 10 -
3Quick Configuration.................................................................................................. - 11 -
3.1 Log In ..............................................................................................................................................- 11 -
3.2 Device Quick Configuration through Setting Wizard......................................................................- 12 -
4. TDMA................................................................................................................................- 17 -
5. Status Display................................................................................................................- 18 -
5.1 Status Display....................................................................................................................................- 18 -
5.2 Real-Time Monitoring.......................................................................................................................- 19 -
6. Wireless Setting............................................................................................................- 21 -
7. Network Setting............................................................................................................. - 23 -
7.1 Route Mode .......................................................................................................................................- 23 -
7.2 Bridge Mode......................................................................................................................................- 25 -
7.3 Firewall..............................................................................................................................................- 25 -
8. Advanced Settings.......................................................................................................- 26 -
9. System Settings............................................................................................................- 28 -
10. Tools Application .......................................................................................................- 30 -
11. Common Networking Mode.....................................................................................- 33 -
11.1 Wireless Point-to-Point....................................................................................................................- 33 -
11.2 Wireless Point–to-Multipoint...........................................................................................................- 34 -
11.3 Wireless Coverage Bilnd Angle Adjustment Mode .........................................................................- 35 -

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11.4 Route Mode Networking..................................................................................................................- 36 -
12. FAQ.................................................................................................................................- 38 -
13. Construction attention for wireless bridge and monitoring. ...................... - 40 -
13.1 Construction attention......................................................................................................................- 40 -
13.2 Test Situation...................................................................................................................................- 41 -
13.3 Reference Setting:............................................................................................................................- 42 -

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1 Product Overview
PFM88X series device is a device with unique built-in TDMA wireless technology, which integrates
industry-leading core technology and has the features of long distance transmission, high throughput
rate and strong anti-interference.
TDMA，5M/10M/20M/40MHz bandwidth flexible configuration, rate control, ACK overtime auto
adjustment and etc. TDMA effectively solved the problem of hidden node which bothers large-scale
point-to-multipoint WLAN. 5M/10M/20M/40MHz bandwidth flexible configuration achieved a balance
between scarce wireless bandwidth resource and complex working scenario. Advanced rate control
algorithm can quickly adapt to channel quality change and at the same time keep the rate stable as
much as possible. ACK timeout auto adjustment technology can auto detect the distance between
access point and client; adjust wireless parameter to optimize the device performance.
PFM880 max transmission distance can reach 5km, max transmission rate can reach 300Mbps,
and it also has excellent long-distance transmission performance, its throughput rate can reach 40Mbps
at 3km and 30Mbps at 5km respectively and transmit multichannel HD video. It can be used as wireless
bridge between point-to-point and point-to-multipoint remote access, and a base station AP for WI-FI
wireless coverage.
1.1 Product Introduction
PFM has the most advanced design technology in the industry; compact body contains base station
and wireless transmission effect and an advantage of high performance.
Integrated advanced TDMA, MIMO, Multi-hop and other advanced technologies. Innovative
compatibility and improvement of 802.11n protocol guaranteed long distance, throughput rate and

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anti-interference ability of device wireless transmission. PFM88X series wireless device owns following
advantages compared with other brand products:
1. Integrated Technology
PFM88X with built-in operating system integrated TDMA, which effectively solved the problem of
hidden node which bothers large-scale point-to-multipoint WLAN. Operating system adopts
advanced rate control algorithm which can quickly adapt to channel quality change and at the same
time keep the rate stable as much as possible. It is suitable for long-distance wireless transmission
and solved the problem of long-distance point-to-point access, which makes more access number
and rate distribution more average, which is fit for the application of operator and wireless
monitoring field.
2. Long Transmission Distance, High Throughput Rate
PFM88X max transmission distance can reach 5km, max transmission rate can reach 300Mbps,
and it also has excellent long-distance transmission performance, its throughput rate can reach
40Mbps at 3km and 30Mbps at 5km respectively. Its long-distance transmission and high
performance can meet the users’ demand of high bandwidth and long-distance communication.
3. Integrated Watchdog
PFM88X integrated hardware watchdog which monitors system operation all the time. Once the
system works abnormally, watchdog will reset the system and make it restart, which effectively
guarantees the stability of PFM88X.
4. Ping Watchdog Function Real-time Detect Link
Ping Watchdog function can detect if the link works normally, it will help to restart the device when
malfunction occurs to the link, which guarantees stability of the link.
5. A great number of frequencies provided to users
Currently most wireless products are working in standard 802.115.8G frequency, but the standard

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5.8G frequency band is relatively less. 5.8G device will be more susceptible to interference when
the use of 5.8G device is very extensive. However, PFM88X products increased support for 5.8G
nearby frequency, which will make the working frequency expand to 4920MHz-6100MHz. Because
the interference of some frequencies is very little, the client working in these frequencies and
performance of access point are better than other frequencies. PFM88X’s support for non-standard
frequency reduced the interference from outside wireless products and effectively improved the
throughput rate of PFM88X, which will meet users’demand for high bandwidth.
Attention: Please confirm if it conforms to local laws and regulations and radio management
regulations before using these non-standard frequency bands.
6. Adapt to complex working environment
PFM88X can work in complex environment, working temperature is between -30℃and 70℃,
working humidity is between 5％and 95％. PFM88X can still maintain high throughput rate if it
works in thunderstorm, high temperature high humidity, low temperature low humidity and other
severe weather conditions for a long time.
1.2 Electrical Specifications
See sheet 3 for the electrical specifications of PFM88X.
Type
Item
DH-PFM880
DH-PFM881
Wireless
Technology
Standard
IEEE802.11 a/n
Working Frequency
USA(FCC): 5.725～5.825 GHz ISM band
ETSI: 5.15～5.35 GHz；5470～5725 MHz ISM band
Modulation Mode
802.11 a/n: OFDM
Antenna
External antenna：gain 16dBi
Built-in antenna：gain 15dBi
Equivalent Output
Power
+27dBm(@MCS0,11n)
＋23dBm(@MCS0,11n)
Receiving Sensitivity
-74dBm @ 65Mbps, -96dBm@1Mpbs
Optimal
Transmission
Distance
0-3KM
0-5KM

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Working Frequency
Band
5470-5825 MHz
Wireless
Authentication
SRRC
Wireless Direction
Angle
Horizontal 90°，vertical 12°
Horizontal 40°，vertical 15°
Transmission Rate
11n:13.5/15/27/30/40.5/45/54/60/81/90/108/120/121.5/135/150/162/
180/216/240/270/300Mbps (40+MHz Channel width)
11n：130/117/104/78/65/58.5/52/39/26/19.5/13/6.5Mbps (20+MHz
Channel width)
11a ：54/48/36/24/18/12/9/6Mbps(self-adaption)
Hardware
Power Module Port
1*POE RJ45(IN: 220V, OUT: 24V/0.5A)、1*LAN RJ45
Power Consumption
MAX 10W
MAX 8W
Port
1*POE RJ45
1*POE RJ45、1*LAN RJ45
Indicator Light
N/A
Wi-Fi status indicator light / LAN
port indicator light / Power
indicator light / Signal intensity
indicator light
Working
Temperature
-30℃～+70℃
Storage
Temperature
-30℃～+80℃
Working Humidity
5%～95%RH( no condensation)
Equipment
Dimension(mm)
233×233×45mm
280×30×80mm
Antenna
Dimension(mm)
450×140×35 mm
N/A
Equipment Weight
2.4Kg
0.45Kg
Antenna Weight
1.26Kg
N/A
Protection Level
IP66
N/A
Mast Diameter
40mm~60mm
Software
Encryption Way
WEP/WPA-PSK/WPA2/CCMP(AES)/TKIP
Network Mode
Route/Network Bridge
Working Mode
Access Point/Client/WDS AP/WDS client/WDS Repeater
Security Mechanism
IP/MAC address filtering, hide network name and etc
Network Protocol
TCP/UDP/ARP/ICMP/DHCP/HTTP/NTP
TDMA
Enhancement
Support (TDMA eliminate hidden nodes influence and greatly
improve one-to-many performance）

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Auto ACK timing
Adjustment
Support (Auto optimize parameter within long-distance
communication and make the performance optimal）
Management and
Log
NTP, SNMP, Syslog, Telnet
Webpage
Configuration
Management
Support webpage configuration
Firmware Update
Support Firmware webpage update
Long-Distance
Communication
Throughput Rate
≤40Mbps@3km
≤30Mbps@5km
Bandwidth Flexible
Configuration
5M/10M/20M/40MHz
Sheet 3
1.3 Product Packaging List
DH-PFM880
Host *1；
Antenna *1
Feeder line *2
POE power supplier (24V/0.5A)*1；
Quick configuration manual；
Compact disc；
Accessory
DH-PFM881
Host *1；
POE power supplier (24V/0.5A)*1；

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Quick configuration manual；
Compact disc；
Ribbon *2；
1.4 Product Features
Adopt high performance 802.11n 2X2 MIMO chip，max rate 300Mbps，outdoor max transmission
distance 5km
Excellent far field rate performance: throughput rate≤40Mbps@3km，≤30Mbps/5km（under the
condition of hollowness）
Support four working modes: AP, Station, AP-WDS,Station-WDS
Use unique TDMA technology, intelligent rate control, auto ACK overtime adjustment and some
other technologies.
TDMA protocol overcame 802.11 inherent problem of inherent node, which makes the product have
better long-distance and point-to-point performance.
Support point-to-point and point-to-multipoint transmission modes.
Exclusive antenna, radio-frequency amplifier, low noise receiver design, ensure long-distance video,
audio and data transmission.
Customize common scenario and working mode for users, make it convenient for non-wireless
professionals to use and install.
Exclusive TDMA technology can maximize the use of bandwidth resource and better support
point-to-multipoint data transmission.
POE power supply，support international universal 802.3af standard，power supply mode is more
convenient and reliable.

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Remote control and management through webpage, easy for configuration.
Water-proof and ultraviolet-proof cover ensures outdoor stable operation for the device.
1.5 Application Range
1. Safe towns, safe construction sites, safe scenic area
2. Playground, ranch, uptown crossroad and other no blocking scenarios.
1.6 Hardware Description
See sheet 4 for the simple hardware information of PFM88X:
Hardware Index
CPU/Baseband Radio
AtherosAR7240/AR9280
Memory
32MB DRAM, 8MB Flash
Physical Port
2×10/100M Base-TX (Cat. 5/5E, RJ-45)Internet
access
LED Indicator Light
Power, LAN, WLAN, 3×Link Quality
Power Supply
POE, Power Adapter 24V/0.5A
Sheet 4
1.7 Hardware Description
In order to make users not have to login webpage, and let them have a rough idea of current
working situation of PFM88X intuitively with naked eyes, PFM88X adopts LED to show current
working condition and connection quality. LED is mainly divided into two parts, one is device status,
and the other is connection quality. See Figure 1 for more details, the first LED from left is power
indicator, the second is network indicator, the third is connection indicator; the first to the third from

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right are signal intensity indicator, see sheet 5 for more details.
Figure 1
LED
Color
Status
POWER
Green
Light on means PFM88X connected power
LAN
Green
Light on means PFM88X LAN port is
connected to external device
WLAN
Green
Light on means wireless of PFM88X is
enabled.
Flashing light means the device wireless is
enabled and transmitting data by wireless.
Signal Intensity
Red
Indicator shows the signal intensity
Green light on means high signal intensity
Yellow light on means medium signal
intensity
Red light on means weak signal or no
signal
Yellow
Green
Sheet 5

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2 Product Installation
The line connection mode is different under different network mode, because the device default
setting is bridge mode. This chapter mainly describes the line connection mode of bridge mode, please
refer to chapter 7 network setting for the connection mode of route mode.
2.1 Line Connection
See Figure 2 for the installation of PFM88X.
Figure 2
PFM881 device has two internet accesses (RJ45 ports), which are marked as “POE”and “LAN2”
respectively. The device default setting is bridge mode, so “POE”port is connected to POE power port
by network cable and provides PFM881 device with 24V power and data connection. “LAN2”port can be
linked to IP Camera (such as video surveillance application) and other devices.

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2.2 Restore Default Factory Setting
We can choose manual operation when users forget the IP of PFM88X and can’t open the webpage.
See Figure 3 for more details; press Reset button for 5-10 seconds, let go when all the LED lights
are on, and the device has been restored default factory setting. Meanwhile, the port with direct
connection with PFM88X host will show twice connection and disconnection in a row.
Figure 3
See sheet 6 for main parameters of PFM881 default factory setting
Item
Default Factory Setting
IPAddress
192.168.1.36
User Name
admin
Password
admin
Wireless Mode
Client
Way of Encryption
WPA->WPA2->CCMP->Secret Key：1234567890abc
Network Mode
Bridge Mode
Sheet 6

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3 Quick Configuration
This chapter mainly describes how to make quick configuration to Bridge device and make it work
normally.
3.1 Log In
Login PFM88X configuration work is made up of setting the host which connects PFM88X directly
and log in, operation steps are as follows:
1. Network connection->local connection, select local connection and single click right button, click
properties by mouse left button.
2. Select Internet protocol (TCP/IP), double click with mouse left button, you will see the window
shown in Figure 4.

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Figure 4
3. IP address is set the same network segment IP of PFM88X, which is shown in Figure 4, and the
IP can’t be the same as PFM88X. For example: the IP of PFM88X is 192.168.1.36, then the host IP
can be set as 192.168.1.180; meanwhile, different PFM88X devices need to be allocated with
different addresses so as not to cause address conflict.
4. Input PFM88X IP in the browser and press enter key, enter the login interface, default user name
and password are admin\admin；
3.2 Device Quick Configuration through Setting Wizard
Users can make quick configuration to Bridge device by setting wizard in this chapter.
1. The first page is “Status Display” After login (see Figure 5); it shows the current working status,
current setting and software version of PFM88X. Other pages can be displayed by clicking the menu
o n the left, as shown in Figure 6.

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Figure 5
2. Click “Setting Wizard”on the left, as shown in Figure 6. The wizard can help users to make quick
configuration to the device, such as network configuration, wireless mode and etc.
Figure 6
3. Click “Next”, it will display basic network parameter configuration. Device default configuration is
“Bridge Mode”, LAN port IP address is “192.168.1.36”，as shown in Figure 7. If users need to
configure the device as “Bridge Mode”and other detailed network setting, please click the “Network
Setting”menu on the left after completing setting wizard.
Attention: If several PFM88X devices realize interconnection of point-to-point or
point-to-multipoint, different devices need to be configured with different IP address.

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Figure 7
4. Click “Next” and it will display basic wireless mode and wireless security options, as shown in
Figure 8. Two of most commonly used wireless mode of PFM88X device are “client” and “access
point”.
Configured as “client”(Station) mode: It means PFM88X device can be connected to PFM88X
device of “access point”mode.
Configured as “Access Point”(AP) mode: It means PFM88X device can be connected to
PFM88X device of “client”mode.
The precondition is that configuration between wireless encryption option of wireless connection for
both sides and network name should be in accordance with each other. Please click “wireless
Setting”menu on the left if you need other detailed wireless configuration.
Attention: If you need one-to-one (one-to-many) device interconnection and transmit audio or data,
the center device needs to be configured as “Access Point”while other devices configured as
“client”, and configured with same way of encryption, then let “Access Point”device connect to
“Client”device, in this way audio or data transmission can be done.

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Figure 8
5. Click “Next” and it will display working scenario option, as shown in Figure 9. Please enable
“custom scenario” if the users need to customize working scenario, then click “Next” to display
custom scenario configuration. If users enable other options and click “Next”, the completion page
of setting wizard will occur.
Figure 9
6. In the page “setting wizard-custom scenario”, as shown in Figure 10. The following several option
setting will affect the device performance:
Output Power: Users need to configure the device output power according to the actual working
situation and local laws and regulations, the bigger output power is, and the longer wireless transmission
distance will be (The system supports max output power 27dBm).
Channel Width: default is 20MHz, to reach optimal wireless transmission rate. It is recommended to use
channel width 10MHz under the environment of serious block and long-distance communication (>1km)
to improve the quality of wireless transmission.

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ACK-Timeout Auto Adjustment: Users are recommended to open “ACK-Timeout Auto Adjustment”,
this option can auto test the distance between two devices and set parameters according to this distance
to optimize wireless connection quality.
Distance: If “ACK-Timeout Auto Adjustment”option is open, then the distance setting will become invalid,
system will auto test device distance and optimize connection quality. Users need to close “ACK-Timeout
Auto Adjustment”option if they want to make the distance which is set by themselves take effect.
Figure 10
7. The last page is “Setting Wizard-Finish”, as shown in Figure 11. Users can click “change” button
to save all the settings, then click “Apply” button to make your settings valid; or click “apply” to
modify previous configuration.
Figure 11