Related Manuals for Dahua DH-PFM881
Summary of Contents for Dahua DH-PFM881
-
Page 1: User Manual
DH-PFM881 User Manual All Right Reserved 5.8GHz Wireless Bridge/CPE/AP Model: DH-PFM881 User Manual Version： V1.0.1563... -
Page 2: Table Of Contents
1.3 Package Contents ......................9 1.4 Features ..........................9 1.5 Using Example ....................... 10 1.6 Applications ........................11 1.7 Hardware Overview ...................... 12 1.8 Understand the DH-PFM881 LEDs ................12 Installation ......................13 2.1 Connections and installation ..................13 ... - Page 3 DH-PFM881 User Manual All Right Reserved 7.4 Firewall ........................... 30 7.5 IP Aliases ........................31 7.6 Static Routes ........................ 31 7.7 Traffic Shaping ......................31 7.8 VLAN Settings ......................33 Advanced ......................34 System ........................36 ...
-
Page 4: Dh-Pfm881 Led
DH-PFM881 User Manual All Right Reserved 20 W IGURE IRELESS .......................... 2 5 21 C IGURE ONNECTION FIGURE OF ROUTER MODE .................. 2 8 22 N IGURE ETWORK OUTER MODE ...................... 2 9 ... -
Page 5: Versions
Liu Meng References Purpose This document is proposed for the users of DH-PFM881 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... -
Page 6: Ap Information Of A Station
DH-PFM881 User Manual All Right Reserved Items Description transmission range, high date rate and robust transmission. Access Point WIFI station that can be associated to an access Station(Client) point. Customer-premises equipment: it is any terminal and associated equipment located at... -
Page 7: Product Overview
They make the device have longer transmission distance, higher throughput and better point-to-multi-point performance. 2. Longer transmission distance, higher throughput The longest transmission distance of DH-PFM881 can be as far as 15 km, and the max throughput can be 300Mbps. It can satisfy the needs of most of the applications. -
Page 8: Electrical Specifications
All Right Reserved 3. Embedded hardware watchdog DH-PFM881 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-PFM881 device can be rebooted to guarantee the stability of the system. -
Page 9: Dh-Pfm881 Log In Interface
DH-PFM881 User Manual All Right Reserved Standard IEEE802.11 a/n 2T2R 300Mbps （ ） Operation 5.745～5.825 GHz(More Non-standard channels is Frequency availability,4920MHz-6100MHz) Modulation 802.11 a/n: OFDM Mode Antenna 15dBi Gain Output power ＋24dBm(@6.5Mbps,11a), ＋23dBm(@300Mbps,11n) Receive -72dBm @ 65Mbps, -94dBm@6Mbps Sensitivity 11n:13.5/15/27/30/40.5/45/54/60/81/90/108/120/121.5/135/... -
Page 10: Package Contents
Open the package carefully, and make sure that none of the following items listed are missing： One DH-PFM881 device One 24V/0.5A POE power adapter DH-PFM881 Mast-Mount Strap Special Screw Set 1.4 Features High performance 802.11n 2×2 MIMO chip Best transmission range: 15Km, and max transmission throughput:... -
Page 11: Using Example
Waterproof housing and accessory kit protects 1.5 Using Example The DH-PFM881 usage example are shown in Figure 1, it can be used as WIFI AP, CPE, or outdoor PTP, PTMP topology. Therefore, DH-PFM881 is suitable for various applications like wireless video transmission, and wireless signal coverage. -
Page 12: Applications
DH-PFM881 User Manual All Right Reserved Figure 1 DH-PFM881 using examples 1.6 Applications DH-PFM881 can be used widely in the following applications: Page 11... -
Page 13: Hardware Overview
POE, Power Adapter 24V/0.5A 1.8 Understand the DH-PFM881 LEDs The LEDs of DH-PFM881 can be divided to 2 groups. One group of LEDs are Indicators, including the left 3 LEDs of Figure 2, and they are Power, LAN and WAN indicators. The other group of LEDs are Link Quality, including the right 3 LEDs of Figure 2, shown the signal strength. -
Page 14: Installation
This chapter describes how to install DH-PFM881 device in the bridge mode, and the installation method of router mode can be seen in Chapter 7. 2.1 Connections and installation The connection of DH-PFM881 device to POE and power supply is shown in Figure Page 13... - Page 15 All Right Reserved Figure 3 Connections at Bridge mode DH-PFM881 has 2 RJ45 ports, and they are marked with “POE” and “LAN2” separately. In the bridge mode, please connect the device with the POE power adaptor in the following way: 1) Remove the bottom cover from the DH-PFM881 device, and you will see there are 2 RJ45 ports marked with “POE”...
-
Page 16: Restore To The Factory Settings
In some cases, uses can restore the device to the factory settings by the following way in the Figure 4. Push the reset button for 5~10 seconds until all LED is on. This will restore to the factory setting. During this process, the DH-PFM881’s RJ45 ports will be connected and disconnected twice. -
Page 17: Log In
DH-PFM881 User Manual All Right Reserved 3.1 Log in To log in the DH-PFM881 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 5. - Page 18 Figure 6 IP settings 3、In the above Figure 6, IP address should be set to 192.168.1.*, here * can be a number between 1-255 (but not 36) since the DH-PFM881 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 7.
-
Page 19: Quick Configuration Of The Device
Figure 7 DH-PFM881 Log in interface 3.2 Quick Configuration of the Device The users will see how to configure the DH-PFM881 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-PFM881 device. - Page 20 Station mode：The device acts as a WIFI station, and it can be connected to a normal home access point or DH-PFM881 access point. Access Point mode：The DH-PFM881 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.
-
Page 21: Tdma
DH-PFM881 User Manual All Right Reserved Figure 10 Wizard-Wireless 4、The last page of Wizard is shown in Figure 11. 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. -
Page 22: Status
ACK Time-out Auto Adjust can automatically detect the distances of the DH-PFM881 devices, and adjust the wireless parameters to achieve the best link quality. The TDMA setting is shown in the following Figure 12. -
Page 23: Status
DH-PFM881 User Manual All Right Reserved Figure 13 Status 5.1 Status All the configurations in Status page is shown in Table 7. Table 7 Configurations shown in Status Items Description Items Description Device Name of the SSID The name of the wireless... -
Page 24: Monitor
(distances) associated with those routes. The route table contains information about the topology of the network immediately around it. Figure 15 Router Table Bridge Table：It lists all the devices that communicate through the DH-PFM881 device. Page 23... - Page 25 AP/Station Information: Showing the status information of the associated devices. For example, if the DH-PFM881 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.
-
Page 26: Wireless
DH-PFM881 User Manual All Right Reserved Figure 19 AP Information of a Station Syslog：Display the log information of DH-PFM881. 6 Wireless Wireless is shown in Figure 20. Figure 20 Wireless Wireless Mode: There are totally 5 wireless modes, including: Station, Access Point, WDS Station, WDS Access Point, and WDS Repeater. - Page 27 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-PFM881 device can be configured to WDS Repeater mode, so that it can connected to another WDS Station or WDS Repeater.
-
Page 28: Network
POE port of the DH-PFM881. After the above connection, the DH-PFM881 can work as a router. The LAN2 port of DH-PFM881 device acts as the LAN port of the router, and LAN port of POE adaptor acts as the WAN port of the router. - Page 29 DH-PFM881 User Manual All Right Reserved Figure 21 Connection figure of router mode The Network page is shown in Figure 22. Page 28...
- Page 30 DH-PFM881 User Manual All Right Reserved Figure 22 Network Router mode Page 29...
-
Page 31: Bridge Mode
In Bridge mode, there is no WAN port. The LAN port of the POE adaptor, and the LAN2 port of the DH-PFM881 device can all be the LAN port, and the user can choose one of them to use as LAN port. Please refer to Figure 3 for the connections in Bridge mode, and the IP address/Netmask information setting is the same as Router mode. -
Page 32: Ip Aliases
DH-PFM881 User Manual All Right Reserved 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. - Page 33 DH-PFM881 User Manual All Right Reserved 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 Settings Ingress traffic entering wlan0, control the input rate...
-
Page 34: Vlan Settings
DH-PFM881 User Manual All Right Reserved Below is the table that reflects the relationship between egress rate limit and burst. Egress Throughput when reach stable RateLimit(kbps) Burst(Kbytes) （Mbps） Description 20000 18.853 Stable 20000 19.021 Stable 20000 19.205 Stable 20000 2000 19.437 From 23.5 down to stable... -
Page 35: Advanced
DH-PFM881 User Manual All Right Reserved Figure 26 VLAN Setting Below is a common usage: Figure 27 VLAN Scenarios 8 Advanced The Advanced page is shown in Figure 28. Page 34... - Page 36 Figure 28 Advanced Auto ACK-Timeout Adjust：It is suggested to enable this function, so that the distance between 2 DH-PFM881 devices can be detected and all the related parameters can be optimized to achieve the best link quality. 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.
-
Page 37: System
LED configure：This is to configure the signal strength value needed to light on. There are 3 LEDs on DH-PFM881 devices (LED3 value > LED2 value > LED1 value). The default values are -86dBm, -71dBm and -56dBm. When LED1 value < signal strength <... -
Page 38: Tools
DH-PFM881 User Manual All Right Reserved 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. - Page 39 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-PFM881 device, the result shows Alive, otherwise shows Not Alive. Time To Restart: Timing restart equipment.
- Page 40 Telnet/Syslog：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-PFM881 and manipulate the DH-PFM881 device. When telnet is disabled, this operation is disabled.
-
Page 41: Ac Management
DH-PFM881 User Manual All Right Reserved NTP/SNMP： If this NTP server is set, and the DH-PFM881 device can access to this NTP server. DH-PFM881 device automatically calibrate the time and date information with the NTP server and show the time information in the Status page. -
Page 42: Logout
13 Network Configuration Examples 13.1 AP and Station Network In the point-to-point working scenario, user can configure one DH-PFM881 device to AP, and another to station mode, shown in Figure 32. Figure 32 AP and Station network To make the above network work, user need to use computers to configure the... -
Page 43: Wds Access Point, Wds Station, Wds Repeater Network
DH-PFM881 User Manual All Right Reserved 1. Configure the 2 DH-PFM881 devices to bridge mode, and disable the firewall, and set different LAN IP for the 2 devices. 2. In wireless menu, configure the 2 devices to AP and station separately, set the same SSID, the same channel bandwidth (20MHz for default), and set the same encryption and password for both of the devices. -
Page 44: Router Mode
Figure 34. In Figure 34, The POE port of the POE adaptor is connected to the DH-PFM881 device’s POE port, and the LAN port of the POE adaptor is connected to the internet. Meanwhile, the LAN port of DH-PFM881 device is connected to one computer, and then user can configure the device. -
Page 45: Appendix-A Troubleshooting
All Right Reserved 3. Enable DHCPD. 4. When the above settings are done, use a computer to connect to DH-PFM881 device, and then check whether the connection is successfully. Note: Users can check whether the connection is successfully by ping DH-PFM881 device’s WAN IP address. - Page 46 4. The signal strength between 2 DH-PFM881 devices is too weak, and the throughput is low. 1. The DH-PFM881 AP and Station devices are not Line-of-Sight, or there are blocks like a building in between the AP and Station devices.
- Page 47 DH-PFM881 User Manual All Right Reserved 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 weak.
- Page 48 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.
Need help?
Do you have a question about the DH-PFM881 and is the answer not in the manual?
Questions and answers