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

i

 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

Dahua 5.8GHz Wireless AP/CPE User Manual

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Table of Contents

1 Product 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 -

2 Product Installation ..................................................................................................... - 9 -

2.1Line Connection.................................................................................................................................... - 9 -

2.2Restore Default Factory Setting .......................................................................................................... - 10 -

3 Quick 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 -

Dahua 5.8GHz Wireless AP/CPE User Manual

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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 -

Dahua 5.8GHz Wireless AP/CPE User Manual

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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

Dahua 5.8GHz Wireless AP/CPE User Manual

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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

Dahua 5.8GHz Wireless AP/CPE User Manual

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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

Atheros AR7240/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

Dahua 5.8GHz Wireless AP/CPE User Manual

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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

IP Address

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