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
ii
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 -

Dahua 5.8GHz Wireless AP/CPE User Manual
iii
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
- 1 -
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
- 2 -
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
- 3 -
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

Dahua 5.8GHz Wireless AP/CPE User Manual
- 4 -
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）

Dahua 5.8GHz Wireless AP/CPE User Manual
- 5 -
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；

Dahua 5.8GHz Wireless AP/CPE User Manual
- 6 -
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.