Zhejiang Dahua Vision Technology DH-PFM880 5G Wireless Video Transmission Device CPE User Manual

Zhejiang Dahua Vision Technology Co., Ltd 5G Wireless Video Transmission Device CPE Users Manual

Users Manual

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DH-PFM880 User Manual
DaHua All Right Reserved
5.8GHz Wireless Bridge/CPE/AP
Model: DH-PFM880
User Manual
Version: 1.0.1563
DH-PFM880 User Manual
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Contents
Versions .................................................................................................................. 3
References ............................................................................................................. 4
Purpose .................................................................................................................. 4
Notes ...................................................................................................................... 4
Definitions ............................................................................................................. 4
Product Overview ................................................................................................. 5
1.1
1.2
1.3
1.4
1.5
1.6
Product Advantages ....................................................................................................... 5
Electrical Specifications.................................................................................................. 7
Features............................................................................................................................ 8
Using Example................................................................................................................. 9
Applications ................................................................................................................... 10
Hardware Overview ...................................................................................................... 10
Installation ........................................................................................................... 10
2.1 DH-PFM880 installation ............................................................................................... 10
2.2 Connections................................................................................................................... 12
Quick Configuration ........................................................................................... 13
3.1 Log in ............................................................................................................................. 13
3.2 Quick Configuration of the Device ............................................................................. 16
TDMA ................................................................................................................... 18
Status .................................................................................................................... 19
5.1 Status .............................................................................................................................. 20
5.2 Monitor .......................................................................................................................... 21
Wireless................................................................................................................ 22
Network ............................................................................................................... 25
7.1
7.2
7.3
7.4
7.5
Router mode ................................................................................................................. 25
Bridge mode .................................................................................................................. 27
Management ................................................................................................................. 27
Firewall ........................................................................................................................... 27
IP Aliases ....................................................................................................................... 27
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7.6 Static Routes ................................................................................................................ 28
7.7 Traffic Shaping ............................................................................................................ 28
7.8 VLAN Settings .............................................................................................................. 29
Advanced ............................................................................................................. 31
System .................................................................................................................. 32
10 Tools ..................................................................................................................... 34
11 AC NMS................................................................................................................ 37
12 Logout .................................................................................................................. 38
13 Network Configuration Examples .................................................................... 38
13.1 AP and Station Network .............................................................................................. 38
13.2 WDS AP, WDS Station, WDS Repeater Network ....................................................... 39
13.3 Router Mode ................................................................................................................. 40
Appendix-A Troubleshooting ................................................................................... 41
Contact us ...................................................................................错误!未定义书签。
FIGURE 1 DH-PFM880 USING EXAMPLES .................................................................................................... 9
FIGURE 2 METAL MAST-MOUNT SETS ....................................................................................................... 11
FIGURE 3 PACKAGE CONTENTS ................................................................................................................... 11
FIGURE 4 WATER-PROOF CONNECTOR AND THE ETHERNET CABLE .............................................................. 12
FIGURE 5 DH-PFM880 INSTALLATION ON A MAST ..................................................................................... 12
FIGURE 6 CONNECTIONS AT BRIDGE MODE ................................................................................................. 13
FIGURE 7 LOCAL AREA CONNECTION PROPERTIES ....................................................................................... 14
FIGURE 8 IP SETTINGS ............................................................................................................................... 15
FIGURE 9 LOG IN INTERFACE ....................................................................................................................... 16
FIGURE 10 STATUS PAGE ............................................................................................................................ 16
FIGURE 11 WIZARD-NETWORK.................................................................................................................. 17
FIGURE 12 WIZARD-WIRELESS .................................................................................................................. 18
FIGURE 13 WIZARD-FINISH ....................................................................................................................... 18
FIGURE 14 TDMA SETTING ....................................................................................................................... 19
FIGURE 15 STATUS .................................................................................................................................... 20
FIGURE 16 THROUGHPUT MONITOR ........................................................................................................... 21
FIGURE 17 ROUTE TABLE ............................................................................................................................ 21
FIGURE 18 STA INFORMATION OF AN AP ................................................................................................... 22
FIGURE 19 AP INFORMATION OF A STATION ............................................................................................... 22
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FIGURE 20 WIRELESS................................................................................................................................. 23
FIGURE 21 CONNECTION FIGURE OF ROUTER MODE .................................................................................... 25
FIGURE 22 NETWORK-ROUTER MODE ........................................................................................................ 26
FIGURE 23 FIREWALL ................................................................................................................................. 27
FIGURE 24 TRAFFIC SHAPING ..................................................................................................................... 28
FIGURE 25 VLAN SETTING(1) ................................................................................................................... 30
FIGURE 26 VLAN SETTING (2) .................................................................................................................. 30
FIGURE 27 COMMON USAGE ....................................................................................................................... 31
FIGURE 28 ADVANCED .............................................................................................................................. 31
FIGURE 29 SYSTEM.................................................................................................................................... 33
FIGURE 31 AC NMS ............................................................................................................................... 38
FIGURE 32 AP AND STATION NETWORK ...................................................................................................... 38
FIGURE 33 WDS NETWORK ...................................................................................................................... 39
FIGURE 34 ROUTE MODE ........................................................................................................................... 40
TABLE 1 VERSIONS ...................................................................................................................................... 3
TABLE 2 DEFINITIONS .................................................................................................................................. 4
TABLE 3 ELECTRICAL SPECIFICATIONS ............................................................................................................ 7
TABLE 4 HARDWARE INFORMATION ............................................................................................................ 10
TABLE 5 CONFIGURATIONS SHOWN IN STATUS ........................................................................................... 20
TABLE 6 MAIN PARAMETERS AT THE FACTORY SETTINGS................................................................................ 34
Versions
Table 1 Versions
Version
Date
History
Author
1.0.1563
2016-1-5
Created
Tian Jian Feng
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References
Purpose
This document is proposed for the users of DH-PFM880 devices, helping them to
configure the device and list the troubleshooting, so that the devices can be used
successfully quickly.
This document mainly contains the following parts: hardware information, web
configuration menu descriptions, network configuration examples, and
troubleshooting. It can help the customers quickly be familiar with the devices and
use them correctly.
Notes
This document is to characterize the DH-PFM880 series of devices. Please read the
document carefully before setting up device. Any damage which is caused by
inappropriate use will not be covered under the warranty.
Definitions
Table 2 Definitions
No.
Items
Description
DH-PFM880
Outdoor, long distance AP/CPE/Bridge devices
XTrans
XTrans is a series of wireless technologies,
including TDMA, 5M/10M/20M/40MHz bandwidth
support, intelligent rate control, Auto ACK
Time-out adjust, having the advantage of long
transmission range, high date rate and robust
transmission.
AP
Access point
Station(Client)
WIFI station that can be associated to an access
point.
CPE
Customer-premises equipment: it is
any terminal and associated equipment located at
a subscriber's premises and connected with
a carrier's telecommunication channel at
the demarcation point.
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1 Product Overview
DH-PFM880 is a powerful WIFI Bridge/AP/CPE device, which allows WIFI access
and video/audio/data transmission device, enables long-range, fast speed and
robust wireless connections. XTrans technology, DH-PFM880 has the advantages
of long-distance, high-throughput, and between point-to-multi-point
performance.
XTrans technologies include TDMA, 5M/10M/20M/40MHz bandwidth, intelligent
rate control, Auto ACK Time-Out Adjust and so on. TDMA technology solves the
problems of hidden-node problem in the 802.11 network. 5M/10M/20M/40MHz
bandwidth can be flexibly configured by the uses in different working scenario to
achieve the best link quality. Intelligent rate control algorithm can be adapted to
quick channel quality variations automatically, thus stabilizing the wireless
throughput. ACK Time-Out Auto Adjust can automatically detect the distances of
the DH-PFM880 devices, and thus adjust the wireless parameters to achieve the
best wireless link quality.
The best transmission range and max speed of DH-PFM880 can be 0~15Km and
300Mbps, making it suitable for many applications of WIFI Bridge/AP/CPE,
especially have advantages for point-to-multi-point communication.
1.1 Product Advantages
The DH-PFM880 has the industrial leading technology, owing the performance
capability of a wireless base station with only a small form factor, furthermore, it
has very attractive low cost.
DH-PFM880 has the following advantages compared to the competitors:
1. Embedded TDMA technology
DH-PFM880 devices is embedded with TDMA technology, including TDMA,
5/10/20/40MHz bandwidth, intelligent rate control, Auto ACK Time-out adjust. It
makes the device have longer transmission distance, higher throughput and better
point-to-multi-point performance.
2. Longer transmission distance, higher throughput
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The longest transmission distance of DH-PFM880 can be as far as 25 km, and the
max throughput can be 300Mbps,which satisfy the needs of most of the
applications.
3. Embedded hardware watchdog
DH-PFM880 is embedded with hardware watchdog, which is used to monitor the
working status of the device. Once the system is not working properly, the
DH-PFM880 device can be rebooted to guarantee the stability of the system.
4. Software Ping watchdog function
DH-PFM880 software ping watchdog function enable the device periodically ping
another device associated to, so that it can detect if the system is working well. If
the wireless link is lost or there is any problem, the device is rebooted. This is
important because the devices can be restored to work automatically if there is
any problem, and avoid the extra human labour to maintain the outdoor devices.
5. More Non-standard channels availability
Currently most of the WIFI devices are working at standard 802.11 5.8GHz
frequency. However, standard 802.11 5.8GHz only provide limited channels, and
there is serious interference if there are a lot of 5.8G WIFI devices nearby.
DH-PFM880 support more channels near 5.8GHz band, and spread the band to
non-standard frequency part: 4920MHz-6100MHz。The advantage of working at
the non-standard band is to avoid the interference in the standard channels, and
the wireless throughput can be improved.
Note: Please confirm whether those non-standard channels are permitted locally
before using them.
6. Outdoor industrial product
DH-PFM880 device can work at all kinds of outdoor severe environments,
including -30 to 70 degree temperature, 5% to 95% humidity, while maintain good
performance.
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1.2 Electrical Specifications
The electrical specifications are shown are the following table:
Table 3 Electrical Specifications
Items
Specifications
Standard
IEEE802.11 a/n(2T2R 300Mbps)
Operation
Frequency
5.745~5.825 GHz(More Non-standard channels is
Modulation
Mode
802.11 a/n: OFDM
Antenna
16dBi
Antenna size
availability,4920MHz-6100MHz)
Weight
Device:212.6*212.6*55mm,
ANT:450*140*35mm
Device:2.8kg
ANT:1.26kg
Output
power
+27dBm
Receive
Sensitivity
-72dBm@65Mbps, -94dBm@6Mpbs
11n:13.5/15/27/30/40.5/45/54/60/81/90/108/120/121.5/135
Date rate
/150/162/180/216/240/270/300Mbps(HT40)
130/117/104/78/65/58.5/52/39/26/19.5/13/6.5Mbps(HT20)
11a :54/48/36/24/18/12/9/6Mbps(adaptive)
Distance
Outdoor open area: >=15 km
Power supply
802.3at PoE+
Interface
PoE
Operation
Temperature
-30℃~+70℃
Storage
Temperature
-40℃~+85℃
Operation
Humidity
5%~95%RH
Encryption
WPA-PSK/WPA2/CCMP(AES)/TKIP
Network
Router/Bridge
Operation
AP/Station/WDS AP/WDS Station/WDS Repeater
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Mode
Security
MAC/IP filter, SSID hidden
Network
protocol
TCP/UDP/ARP/ICMP/DHCP/HTTP/NTP
TDMA
Supported (Avoid 802.11 hidden-node problems, and
improve the point-to-multi-point performance)
Auto ACK
timing Adjust
Supported
Management
and Logs
NTP, SNMP, Syslog, Telnet
Web based
Configuratio
Supported
Firmware
Update
Supported
Bandwidth
supported
5M/10M/20M/40MHz
1.3 Features
High performance 802.11n 2×2 MIMO chip
Max transmission range: 0~3Km, and max transmission throughput:
300Mbps
Integrated XTrans technology, including TDMA, intelligent rate control,
Auto ACK Time-out adjust
TDMA solves the problems of hidden-node problem in the 802.11
network, thus having better long-distance and PTMP performance
Support five operation modes: Access Point, Station, WDS Access Point,
WDS Station, WDS Repeater
Support point-to-point, point-to-multipoint connection
Unique RF and antenna design enables long-range transmission
Wireless multimedia optimization technology guarantees video/audio
transmission QoS
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Web based working scenario selection makes the installation and setting
much easier
Reliable PoE power supply, support 802.3af standard
Web-based configuration, easy to use
Waterproof housing and accessory kit protects
1.4 Using Example
The DH-PFM880 usage example are shown in Figure 1, it can be used as WIFI AP,
CPE, or outdoor PTP, PTMP topology. Therefore, DH-PFM880 is suitable for
various applications like wireless video transmission, and wireless signal coverage.
Figure 1 DH-PFM880 using examples
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1.5 Applications
DH-PFM880 can be used widely in the following applications:
Wireless video surveillance (free-way, city, police, oil pipeline, forest and
etc.)
Carrier wireless backhaul and rural area internet last-mile wireless solution
Enterprise local area network inter-connection
WIFI signal coverage and rural wireless coverage
1.6 Hardware Overview
DH-PFM880’s hardware information is described in the following Table 4:
Table 4 Hardware information
Hardware Specifications
CPU/Baseband Radio
Atheros AR9344
Memory
64MB DRAM, 8MB Flash
Physical Interface
1×10/100/1000M Base-TX (Cat. 5/5E,
RJ-45) Ports
Power supply
802.3at PoE+
2 Installation
This chapter describes how to install DH-PFM880 device in the bridge mode, and
the installation method of router mode can be seen in Chapter 7.
2.1 DH-PFM880 installation
DH-PFM880 is an outdoor product, and it has the aluminium shell, has the IP67
water-proof capability, and can operate at -30℃~+70℃ temperature.
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To make DH-PFM880 work well in all kinds of complicated outdoor environment,
the installation is very important. If it’s not installed well, the wireless link quality
will be affected, and the long-term working stability cannot be guarantee too.
Package contents:
Open the package carefully, and make sure that none of the following items listed
are missing:
One DH-PFM880 device
One 802.3at PoE+ power adapter
One RJ45 water-proof connector
One antenna
Metal Mast-Mount Set, shown in Figure 2, and this set contains 3
components.
One quick user manual
Figure 2 Metal Mast-Mount Sets
All the components in the package are shown in Figure 3:
Figure 3 Package contents
Installation steps:
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Installation of DH-PFM880 can follow the below steps:
1. Take all the contents from the package
2. Mount DH-PFM880 in a mast, and then fix the device on the mast as shown in
Figure 5.
3. After the DH-PFM880 is fixed on the mast, protect the Ethernet cable using the
water-proof connector.
Figure 4 Water-proof connector and the Ethernet cable
4. Screw the water-proof connector well on the DH-PFM880 shell.
Figure 5 DH-PFM880 installation on a mast
2.2 Connections
The connection of DH-PFM880 device to PoE and power supply is shown in Figure
6. TurobBridge5F has 1 RJ45 ports, and please connect the device with the PoE
power adaptor as shown in the Figure.
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Figure 6 Connections at Bridge mode
3 Quick Configuration
This chapter describe how to configure the device quickly.
3.1 Log in
To log in the DH-PFM880 device, user needs to configure the TCP/IP of your
computer first as the following steps:
1、Right click Local Area Connection icon of your computer and click properties,
then click Continue, the Local Area Connection Properties dialog box appears as
Figure 7.
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Figure 7 Local Area Connection Properties
2、Select Internet Protocol (TCP/IP) and click Properties button, and the following
dialog box appears:
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Figure 8 IP settings
3、In the above Figure 8, IP address should be set to 192.168.1.*, here * can be a
number between 1-255 (but not 36) since the DH-PFM880 default IP address is
192.168.1.36.
4、When the above IP setting is done, input the default IP 192.168.1.36 into the
address bar of your web browser, and the following log in interface appears as
shown in Figure 9.
5、In Figure 9, input the user name and password (default is admin/admin), click
Confirm, then you can log in to the web configuration menu of the DH-PFM880
device.
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Figure 9 Log in interface
3.2 Quick Configuration of the Device
The users will see how to configure the DH-PFM880 device quickly in this chapter.
1、 The first page shown after log in is the Status page, which indicates the
working status, current setting, software version and other information of the
DH-PFM880 device. User can switch to other pages by clicking the left main
menus in Figure 10.
Figure 10 Status Page
2、Click Wizard main menu, The page goes to Wizard-Network page as shown in
Figure 11, and this page helps to set the basic network parameters. The default
mode is Bridge mode, and the default LAN IP address is 192.168.1.36. If the user
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wants to configure the device to Router mode, please click Network in the main
menu.
Note: If several DH-PFM880 devices are connected in the Point-to-Point or
Point-to-Multi-Point topologies, they must be configured to different IP address
to avoid collisions.
Figure 11 Wizard-Network
3 、 After finishing the Wizard-Network settings, click next and it goes to
Wizard-Wireless page shown in Figure 12. The most used wireless mode are
Access Point and Station.
Station mode:The device acts as a WIFI station, and it can be connected to a
normal home access point or DH-PFM880 access point.
Access Point mode:The DH-PFM880 device acts as an access point, which allows
normal WIFI stations access. For detail settings of wireless mode, please click
Wireless in the main menu.
Note: If two DH-PFM880 devices need to be connected in point-to-point
topology, one of the device need to be configured as Access Point, and the other
one need to be configured as Station, and both of them should have the same
Encryption method.
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Figure 12 Wizard-Wireless
3、click “Next”, The last page of Wizard is shown in Figure 13. User can click
Change to save all the settings, and then click Apply the make the setting
effective, or click Last to modify the previous settings.
Figure 13 Wizard-Finish
4 TDMA
Currently, most of the outdoor bridge products are developed based on 802.11
protocols, however, it has the limitations of short-distance, hidden node problems,
and poor point-to-multi-point performance.
The TDMA technology utilizing a series of advanced technologies such as TDMA,
5M/10M/20M/40MHz bandwidth support, intelligent rate control, Auto ACK
Time-out Adjust, having the advantage of long transmission range, high date rate
and robust transmission.
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TDMA technology solves the problems of hidden-node problem in the 802.11
network infra-structure. 5M/10M/20M/40MHz bandwidth can be flexibly
configured by the uses in different working scenario to achieve the best link
quality. Intelligent rate control algorithm can be adapted to quick channel quality
variations, while stabilize the wireless throughput, thus suitable for long-distance
transmission. ACK Time-out Auto Adjust can automatically detect the distances of
the DH-PFM880 devices, and adjust the wireless parameters to achieve the best
link quality.
The TDMA settings is shown in the following Figure 14.
Figure 14 TDMA setting
To use the TDMA, the user needs to enable TDMA mode in the AP device, and set
a priority level in the station device. When several stations are connected to one
AP, different stations demand different throughput. If the station demands higher
throughput, its priority level can be set to High, otherwise set to Low. When the
stations demand the same throughput, their priority level can be set to the same
level.
Note: When using TDMA mode, the TDMA button need to be enabled at both AP
and station devices in the web-based configuration menu. The devices from other
vendors can not be connected to DH-PFM880 in the TDMA mode.
5 Status
Status is the first page shown after logging in. It shows the current configuration
and real-time monitoring of the device, seen in the following Figure 15. This page
is divided into 2 parts: Status and Monitor.
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Figure 15 Status
5.1 Status
All the configurations in Status page is shown in Table 5.
Table 5 Configurations shown in Status
Items
Description
Items
Description
Device
Name of the
device , for
example:
DH-PFM880
WIFI MAC
WIFI MAC of this device
Firmware Version
Software version
number
Channel
mode
Wireless communication
protocol, for example,
802.11b/g/n
WAN
WAN IP address
WAN
MAC
MAC of the WAN port
Network mode:
Router or Bridge
SSID
The name of the wireless
network
Frequency/Channel Wireless channel
chosen
Channel
Width
5M、10M、20M、20/40
M AUTO
Wireless Mode
Security
Wireless encryption
method
Noise Floor
Noise Floor value
IP
Network Mode
Access Point,
Station,
WDS Station,
WDS Access Point,
WDS Repeater
Distance
The distance
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between two
associated devices
Signal level
It indicates the
signal strength of
the device
Link Quality Quality of the
connection link
Tx/Rx Rate
The date rate of
current device
during sending
and receiving data.
Time
The real-time
5.2 Monitor
Throughput:The figure here monitors the real-time throughput of the wireless
link, shown in the following Figure 16.
Figure 16 Throughput monitor
Route Table:It is stored in a router that lists the routes to particular network
destinations, and in some cases, metrics (distances) associated with those routes.
The route table contains information about the topology of the network
immediately around it.
Figure 17 Route table
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Bridge Table:It lists all the devices that communicate through the DH-PFM880
device.
ARP Table : It lists the IP address and MAC address of the devices that
communicate through the LAN port of the DH-PFM880 device.
AP/Station Information: Showing the status information of the associated
devices.
For example, if the DH-PFM880 device is an AP, and the associated device is a
Station, and this Station Information shows the related information of the Station
device in the Figure 18.
Figure 18 STA Information of an AP
If the DH-PFM880 is a Station, and AP Information shows the associated AP
device’s information, seen in Figure19.
Figure 19 AP Information of a Station
6 Wireless
Wireless is shown in Figure 20.
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Figure 20 Wireless
Wireless Mode: There are totally 5 wireless modes, including: Station, Access
Point, WDS Station, WDS Access Point and WDS Repeater.
Access Point: Access point.
Station (or Client): A client device that can connected to an AP.
WDS Station: Use WDS feature to link multiple APs in a network, all associated
stations from any AP can communicate with each other like in ad-hoc mode. WDS
station means this device is a station in WDS mode.
WDS AP: Use WDS feature to link multiple APs in a network, all associated
stations from any AP can communicate with each other like in ad-hoc mode. WDS
AP means this device is an AP in WDS mode.
WDS Repeater:A DH-PFM880 device can be configured to WDS Repeater mode,
so that it can connected to another WDS Station or WDS Repeater.
SSID: Name of a wireless.
Shown in Figure 20, the user can click the Select button to list all the SSIDs that
can be associated, and then choose the one need to be associated.
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Frequency MHz:This only appears when the device is configured to Access Point
mode or WDS Access Point mode. The device can only work on one channel at the
same time.
Frequency Scan List:This only appears when the device is configured to Station
mode or WDS Station mode. If it’s not enabled, the station will scan all the
channels which both the device and the country code allowed and then choose
the same channel as the associated AP. If it’s enabled, click select, another window
will pop up and let the user to choose the working channels, and the channels
should include the associated AP’s channel, which can fasten the association
process between the AP and the Station
Output Power:Output power of the device.
Country Code:Different countries allows different channels, use can choose the
country code to only allow the device works at the channels permitted in the
particular country.
Channel Width : Channel width selection, and DH-PFM880 device supports
5MHz/10MHz/20MHz/40MHz bandwidth.
Max TX Rate:Max transmission rate, and it can be used to limit the max
transmission rate of a device.
Lock AP MAC:In Station, WDS Station, and WDS Repeater modes, users can use
this to limit the APs associated to.
Security:User can set the security based on needs to guarantee the wireless
security.
WPA:Encryption method supported by 802.11 Protocols.
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7 Network
7.1 Router mode
DH-PFM880 acts as a router when configured to Router mode. In router mode, the
connection is shown in Figure 21. User needs to connect the PoE port of PoE
adaptor to the PoE port of the DH-PFM880.
After the above connection, the DH-PFM880 can work as a router. The LAN port of
PoE adaptor acts as the WAN port of the router.
Figure 21 Connection figure of router mode
The Network page is shown in Figure 22.
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Figure 22 Network-Router mode
WAN Mode:WAN mode can be configured to DHCP, Static IP or PPPoE. When set
to DHCP, the device can dynamically get the IP address. When set to Static IP, user
needs to manually set the IP address, Netmask, Gateway IP and other information.
WAN IP:WAN IP address. It should be set to the same segment of IP address of
the internet provided by ISP, please check with the ISP for this information.
WAN Netmask:WAN Netmask, use can check with the ISP for this information.
Note: WAN IP address should not be the same as the IP devices of the internet to
avoid collision.
LAN IP:LAN IP address.
LAN Netmask:LAN Netmask information.
Primary DNS and Secondary DNS: Please check with the ISP for the information.
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7.2 Bridge mode
In Bridge mode, there is no WAN port. The LAN port of the PoE adaptor, and the
LAN2 port of the DH-PFM880 device can all be the LAN port, and the user can
choose one of them to use as LAN port. Please refer to Figure 6 for the
connections in Bridge mode, and the IP address/Netmask information setting is
the same as Router mode.
7.3 Management
The IP address of the device can be modified, and the management of the device
can be performed by setting the specified management interface.
7.4 Firewall
When the firewall is enabled, the device can allow only some devices to be
associated to. Shown in Figure 23, and there are 4 cases of Firewall filtering.
Figure 23 Firewall
1. Accept one or several devices with particular MAC address.
2. Deny one or several devices with particular MAC address.
3. Accept one or several devices with particular IP address.
4. Deny one or several devices with particular IP address.
7.5 IP Aliases
Add multiple IP to a network interface.
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7.6 Static Routes
This feature can be set to static routing.
7.7 Traffic Shaping
Traffic shaping is used to control the traffic of ingress/egress based on each
network port. As shown in figure 24, the ingress of wlan0 is limited to 1024Kbps,
and the egress is limited to 2048Kbps. That means the receiving rate of the
wireless link is limited within 1Mbps, the sending rate is limited to less than 2Mbps.
But usually, the input limited effect is not obviously, that’s because we could not
control how quickly the traffic arrives. However, when a port sends out egress
traffic, it can control how quickly the traffic exits.
Burst defines the how many bytes allowed for downloading/uploading during a
quick time. That leads to momentary throughput can greater than the limit value.
Figure 24 Traffic Shaping
Ingress
Egress
traffic entering wlan0, control the input rate
traffic exiting wlan0, control the output rate
The relationship of rate and burst for ingress:
Set burst to 0, the rate of ingress is unlimited
Set burst to about 1/10 of rate limit, the rate curve is stable
Set burst larger than rate limit, the rate curve will hold a high value for a while then
down to stable
Below is the table that reflects the relationship between ingress rate limit and burst.
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Throughput when reach stable
Rate Limit(kbps)
Burst(kBytes)
(Mbps) Description
10000
10000
10
10000
100
10000
1000
10000
10000
8.6 From 28.5 down to stable
10000
40000
8.6
29.587 Unlimited
4.286 Stable
8.037 Oblique up to stable
8.825 From 9.5 down to stable
Hold on 10 seconds at 29.6, then
suddenly down to stable
The relationship of rate and burst for egress:
Set burst less than 1/10 of rate limit, the rate curve is stable totally
Set burst larger than rate limit, the rate curve will hold a while at a higher value then
down to stable
Below is the table that reflects the relationship between egress rate limit and burst.
Egress
Rate Limit(kbps)
Throughput when reach stable
Burst(kBytes)
(Mbps) Description
20000
18.853 Stable
20000
20
19.021 Stable
20000
200
19.205 Stable
20000
2000
20000
20000
19.2
Hold on 20 seconds at 24.5, then
suddenly down to stable
20000
80000
19.2
Hold on several minutes at 24.5,
then suddenly down to stable
19.437 From 23.5 down to stable
7.8 VLAN Settings
The VLAN function allows user to create multiple virtual local area network. As
shown in figure 25, we add a VLAN on port wlan0. The VLAN ID is 10. The range of
VLAN ID is 2~4094. Each VLAN ID represents a different VLAN.
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Figure 25 VLAN Setting(1)
Bridge function is needed to use together with VLAN. As show below, we add
VLAN 10 on port eth0 and wlan0, they are eth0.10 and wlan0.10, and put them
into the same bridge. The packets from eth0.10 or wlan0.10 will be added a VLAN
label which ID is 10. That requires: the opposite wireless connection side must
support VLAN 10, the device which connects with eth0 is also need to support
VLAN 10.
Figure 26 VLAN Setting (2)
Below is a common usage:
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Figure 27 Common Usage
8 Advanced
The Advanced page is shown in Figure 28.
Figure 28 Advanced
Auto ACK-Timeout Adjust:It is suggested to enable this function, so that the
distance between 2 DH-PFM880 devices can be detected and all the related
parameters can be optimized to achieve the best link quality.
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Distance: The distance can be set manually if the Auto ACK-Timeout Adjust is
disabled, otherwise, the distance parameter is not allowed to be set. It is
suggested the distance is set automatically by enabling Auto ACK-Timeout Adjust
parameter.
Aggregation: It enables several data frames of 802.11 to be aggregated and
transmitted out, thus improve the throughput. In default, it’s enabled.
Multicast Data:
function.
When it’s enabled, DH-PFM880 devices allow multicast
LED configure:This is to configure the signal strength value needed to light on.
There are 3 LEDs on DH-PFM880 devices (LED3 value > LED2 value > LED1 value).
The default values are -86dBm, -71dBm and -56dBm. When LED1 value < signal
strength < LED2 value, LED1 is lighted on; When LED2 value < signal strength <
LED3 value, both the LED1 and LED2 are lighted on; When signal strength > LED3
value, all three LEDs are lighted on.
9 System
System page is shown in Figure 29 and it is divided into the following 4 parts:
Configuration Management, Firmware, Device Setting, Accounts.
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Figure 29 System
Backup
configuration : When
clicking
Download
button,
the
current
configuration can be backed up to a file.
Upload configuration:When clicking browse, user can choose the backup
configuration file and then click upload, so that the configuration stored in the
backup file can be applied.
Firmware update:Click browse button and choose the file, and then click update
button, the firmware can be updated to the latest version.
Firmware reboot:Click the Reboot button to reboot the device.
Reset to Defaults:Click the Reset button to restore to the factory default settings.
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For default, all the factory settings are shown in the following table.
Table 6 Main parameters at the factory settings
Items
Default Settings
IP address
192.168.1.36
User name
admin
Password
admin
Wireless mode
AP
SSID
DaHua
Output power
27dBm
Encryption
WPA->WPA2->CCMP->Password:1234567890abc
Network mode
Bridge Mode
Device name:It can be set to any name needed.
Login Timeout:Login Timeout setting.
Interface Language:Language setting。
Accounts:The user can modify the user name and password here.
10 Tools
The Tools page is shown in Figure 30. This page is divided into six parts: Ping IP,
Time to Restart, Ping Watchdog, Telnet/Syslog, NTP/SNMP and IPERF.
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Figure 30 Tools
Ping IP: User can input the destination IP address of another device, and click
Ping button. If that destination device is successfully connected to the
DH-PFM880 device, the result shows Alive, otherwise shows Not Alive.
Ping Watchdog:The ping watchdog sets the DH-PFM880 Device to continuously
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ping a user-defined IP address (for example, it can be the IP address of the AP the
Client is connecting to). If it is unable to ping under the user defined constraints,
the DH-PFM880 device will automatically reboot. It is highly recommended that
users enable this feature at the side of “Wireless Station” and disable this feature
at the side of “Access Point”.
Ping IP Address:Specify an IP address of the target which will be monitored by
Ping Watchdog. If this feature is enabled at the side of “Wireless Station”, Ping IP
Address should be the IP address of the AP the Client is connecting to.
Ping Interval:Specify time interval (in seconds) between the ping requests are sent
by the Ping Watchdog
Start up Delay: specify initial time delay (in seconds) until first ping request is sent
by the Ping Watchdog
Ping Failure:Specify the number of ping replies. If the specified number of ping
replies is not received continuously, the Ping Watchdog will reset the WIFI only.
Telnet:When telnet is enabled, the user can input command “Telnet 192.168.1.36”
in the DOS window of Windows XP or Windows 7 PC, and then telnet to the
DH-PFM880 and manipulate the DH-PFM880 device. When telnet is disabled, this
operation is disabled.
Syslog: When it’s enabled, and the System Log server’s IP is also set here, the log
information will be output to the System Log server automatically.
NTP Server:If this NTP server is set, and the DH-PFM880 device can access to this
NTP server. DH-PFM880 device automatically calibrate the time and date
information with the NTP server and show the time information in the Status page.
SNMP Group:When this function is enabled, use can check the working condition
and information of the DH-PFM880 device.
IPERF: it is used to test network throughput. User can configure it to server or
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client
Server: when it is a server, it waits client to connect.
Client: when it is a client, it sends connect request to server.
IPERF dual: client sends and receive signal at same time.
IPERF Server: Server IP address.
IPERF Thread: the number of iperf thread. If using more thread, the throughput is
high.
IPERF Time: how long the iperf run.
IPERF Interval: the time between two results show.
Note:If users want to modify the parameters of Ping Watchdog, please
disable it first and then apply. When the web page shows that Ping
Watchdog is really disabled, users can now re-enable it with modified
parameters.
11 AC NMS
The AC NMS page is shown in Figure 31.If you want the device to join the AC
management you need AC management at first and then go to the AC NMS page
to enable the AC control.
WTP name: indicates the name of the device to show on the AC management.
WTP location: indicates the location information of the device to show on the AC
management.
AC IP: AC IP is the IP address of the AC management witch this device should be
joining in. It can be added up to eight.
When the AC control is enabled and the IP address is matched, the device can
be on-line in AC management, a client device must be associated to an access
point device which is on-line on the AC, and then it can be on-line on the AC
management.
When AC control is enabled, users can not configure the device through the
device pages except the AC NMS.
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Figure 30 AC NMS
12 Logout
Click the logout button, it will logout the device and return to the login page.
13 Network Configuration Examples
13.1
AP and Station Network
In the point-to-point working scenario, user can configure one DH-PFM880 device
to AP, and another to station mode, shown in Figure 32.
Figure 31 AP and Station network
To make the above network working, user need to configure the two devices to be
associated. The detail configurations are described in the following:
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1. Configure the two devices to bridge mode, disable the firewall, and set
different LAN IP for the two devices, the LAN IP should be on the same
segment.
2. In wireless menu, configure one device to AP mode and the other one to
station mode, set the same SSID, the same channel bandwidth (20MHz for
default), and set the same encryption and password for both of the devices.
3. After the above setting is done, wait for a while. Using one computer to ping
the other one. If the devices are configured correct, they will be associated and
the ping will get the reply.
13.2
WDS AP, WDS Station, WDS Repeater Network
Figure 32 WDS Network
If there is a block, such as a building is in between the point-to-point connection,
one TuroBridge5F device can be put between the PTP connection as a relay, which
is “WDS AP, WDS Station, WDS Repeater” network, shown in the above Figure33.
Three DH-PFM880 devices need to be configured as shown in Figure 33:
1. Configure the 3 devices to be bridge mode.
2. In the wireless menu, make the following configurations:
Configure the 3 devices to WDS AP/WDS Repeater/WDS Station
separately
Configure the 3 devices’ SSID to be the same
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Configure WDS AP and WDS Repeater frequency to be the same, for
example: 5825MHz
Configure the encryption method and password to be the same.
3. To verify if the network is correctly setup, please use the computer connected to
one of the three devices to ping the IP of any of the other two devices. If the ping
is successfully, the network connection works correctly.
13.3
Router Mode
In the Router mode, the DH-PFM880 works as a router and the network
connection is shown in Figure 32. The PoE port of the PoE adaptor is connected to
the DH-PFM880 device’s PoE port, and the LAN port of the PoE adaptor is
connected to the internet. Meanwhile, the LAN port of DH-PFM880 device is
connected to one computer, and then user can configure the device.
Figure 33 Route mode
After the above connection is done, configure the DH-PFM880 device using the
web based configuration menu.
1. In wireless page, set the device to route mode, disable the firewall. If the
internet provided by the ISP (DH-PFM880 connected to) has a DHCP server,
user can set DH-PFM880’s WAN mode to DHCP (Dynamic IP) so that it can
obtain the IP address automatically.
If the internet provided by the ISP(DH-PFM880 connected to) doesn’t have a
DHCP server, user need to manually configure all the parameters given by the
ISP, such as the WAN IP, WAN Netmask, LAN IP, LAN Netmask, Default
gateway, Primary DNS, Secondary DNS.
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Note: LAN IP address and WAN IP address can not be in the same IP segment.
For example, if LAN IP is 192.168.1.*, then WAN IP must be set to 192.168.2.* or
192.168.3.*.
2. In wireless page, set wireless mode to Access Point, set SSID to a random name,
and set output power to a value needed(Max output power is recommended
in the outdoor long distance environment). Then the user needs to choose a
wireless channel and an encryption method.
3. Enable DHCPD at the Tools page. Please refer to chapter 10 for DHCPD setting.
4. When the above settings are done, use a computer to connect to DH-PFM880
device, and then check whether the connection is successfully.
Note: Users can check whether the connection is successfully by ping
DH-PFM880 device’s WAN IP address. If the ping is successfully, this
connection is successfully.
Appendix-A Troubleshooting
1. The device cannot be started after power on.
1. The Ethernet cable between the DH-PFM880 device and the PoE adaptor is
more than 40 meters long.
2. The Ethernet cable quality is not good enough, and it should be Cat 5e or even
Cat 6 cable.
3. The RJ-45 plugs are not well connected.
2. Can not be restored to the factory setting
Please manually push the Reset button for 5S~10S, then the user can log in the
device by typing the default IP address 192.168.1.36.
3. My computer cannot be connected to the DH-PFM880
Access Point.
Please try the following method to solve the problem:
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1. Adjust the direction of the DH-PFM880 device.
Please rotate the DH-PFM880 device since the antenna inside the device is
directional.
2. Switch to other wireless channel
Switch to other wireless channel ‘cause there are much interferences in this
channel.
3. Turn off the other interference sources
Maybe there are other WIFI devices nearby and cause interferences. Try to turn
off other WIFI devices nearby, or move DH-PFM880 to another clean
environment.
4. The signal strength between 2 DH-PFM880 devices is too
weak, and throughput is low.
1. The DH-PFM880 AP and Station devices are not Line-of-Sight, or there are
blocks like a building in between the AP and Station devices.
2. The Station device and AP device is not aligned very well, including both
horizontally and vertically, since the antenna of the DH-PFM880 is directional.
3. The Station device is installed in the windows, and the windows glass shields
the wireless signal.
4. The distance between the AP and Station devices is too far.
5. The signal strength is high, but the throughput is low
1. There are two much interferences, or multi-path interferences. For example,
there are two much 2.4GHz or 5.8GHz WIFI device working nearby.
2. The RJ45 ports of the DH-PFM880 device don’t work well.
6. During
the
point-to-point
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connection, when ping from one device to another, the
latency is too long or the packet is lost.
1. Isolate the several APs if they are connected to one PoE switch.
2. The RJ45 ports are not connected very well.
7. The internet access is lost and the internet speed is low.
1. There are too much stations connected to one AP.
2. AP signal is too week.
3. There are interference source nearby.
4. Check the number of users and the max internet speed provided by the ISP.
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This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that
may cause undesired operation.
Please take attention that changes or modification not expressly approved by the
party responsible for compliance could void the user’s authority to operate the
equipment.
Note: This product has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This product generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this product does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
This equipment should be installed and operated with a minimum distance 20cm
between the radiator and your body

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