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Description
DAHUA PFM880E Outdoor 5G Wireless video transmission device (AP)PFM880E Outdoor 5G Wireless video transmission device (AP) >Support proprietary protocol TDMA; when the wireless devices open TDMA, other manufacturers will not be able to link them which ensure the system safety; >TDMA protocol overcomes the inherent hidden nodes problem of 802. 11, and makes the wireless products have the better performance in long distance and point to multi point; >Working frequency support 5745~5825MHz(extended range:
PFM880E
Outdoor 5G Wireless video transmission device (AP)
>Support proprietary protocol TDMA; when the wireless devices open TDMA, other manufacturers will not be able to link them which ensure the system safety;
>TDMA protocol overcomes the inherent hidden nodes problem of 802.11, and makes the wireless products have the better performance in long-distance and point to multi-point;
>Working frequency support 5745~5825MHz(extended range: 4920~6100MHz)
>Support auto ranging function, real time display straight line distance between client and base station;
>Support flow control, effectively control base station/client input/output flow control;
>Support VLAN partition, realize virtual local network function, control broadcast storm;
>Support Web page and AC remote operations management and make the installation and maintenance be more convenient;
>POE power supply, which supports international standard 802.3at and lets power supply be convenient and reliable;
>Built-in professional lightning protection technology, which supports 6 kV port lightning protection ability to ensure that the poor working environment adaptability of outdoor and greatly reducing rate of lightning damage to equipment.
>TDMA protocol overcomes the inherent hidden nodes problem of 802.11, and makes the wireless products have the better performance in long-distance and point to multi-point;
>Working frequency support 5745~5825MHz(extended range: 4920~6100MHz)
>Support auto ranging function, real time display straight line distance between client and base station;
>Support flow control, effectively control base station/client input/output flow control;
>Support VLAN partition, realize virtual local network function, control broadcast storm;
>Support Web page and AC remote operations management and make the installation and maintenance be more convenient;
>POE power supply, which supports international standard 802.3at and lets power supply be convenient and reliable;
>Built-in professional lightning protection technology, which supports 6 kV port lightning protection ability to ensure that the poor working environment adaptability of outdoor and greatly reducing rate of lightning damage to equipment.
Product Data
|
Model |
DH-PFM880E |
|
Wireless Features |
|
| Wireless Standard |
IEEE802.11 a/n/ac |
| Working Frequency |
5745~5825MHz(extended range: 4920~6100MHz) |
| Wireless Speed |
867Mbps |
| Modulation Mode |
OFDM |
| Antenna |
External antenna: gain 17dBi |
| Output Power |
27dBm (max) |
| Receiving Sensitivity |
11a: -91dBm@6Mbps 11n: -74dBm@MCS7 11ac: -67dBm@MCS9 |
| Transmission Distance |
0-3Km |
| Wireless Direction Angle |
Horizontal 90°, vertical 9° |
|
Hardware |
|
| Power |
1*POE RJ45(IN: 220V, OUT: 48V/0.5A) |
| Power Consumption |
Max. 15W |
| Ethernet Port |
1*LAN RJ45(1Gbps) |
| Working Temperature |
-30℃~+70℃ |
| Storage Temperature |
-40℃~+80℃ |
| Working Humidity |
5%~95%RH( no condensation) |
| Equipment Dimension |
265mm×265mm×87.5mm |
| Antenna Dimension |
450mm×166mm×60mm |
| Equipment Weight |
2.4Kg |
| Antenna Weight |
1.5Kg |
| Protection Level |
IP66 |
|
Software |
|
| Encryption Type |
WPA-PSK/WPA2/CCMP(AES)/TKIP |
| Network Mode |
Route/Network Bridge |
| Working Mode |
Access Point/Client/WDS AP/WDS client |
| 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) |
| Auto ACK Timing Adjustment |
Support(Auto optimize parameter within long-distance communication and make the performance optimal) |
| Management and Log |
NTP, Syslog, Telnet, AC, SNMP |
| Webpage Configuration Management |
Support webpage configuration, AC remote management and SNMP management |
| Firmware Update |
Support Firmware webpage update and AC remote upgrade |
| Bandwidth Flexible Configuration |
10/20/40/80MHz |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.7 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Post Traumatic Slave Syndrome
Format: Hardcover
Very well done book that does not make Black People feel angry nor White People guilty but from a gentle and skillful psychological point of view the book will "have you considered the impact of this or that upon both races as the result of Slavery in America?" A folk-like homespun way of tell these truths that masks the clinical questions that all trained psychologist asked..."and how would (does) that make you feel for all of us who ever sat on a couch?" The book made me consider the psychological impact of daily slave life with a WOW again and again as I never thought of the situations the book made me consider. The shared dehumanization of both whites and blacks due to the slave experience which goes a long way towards explaining to me why we as a country cannot truly discuss slavery's impact today. I found it self-healing and very necessary for all, both black and white, but especially for the victims of the African Holocaust my terminology not hers. I thought Dr. Leary PhD, did an excellent job and a high school or even a 6 grader could read the material without difficulty.
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Reviewed in the United States on November 18, 2010
★★★★★ 5
Healing & Understanding
Format: Paperback
We are living in a slave master's land (was the Indians..). Hundreds of years of slavery, mental torture and degradation and then "freed." No therapy. No understanding, not even patience. To listen to Dr DeGruy's youtube videos was so enlightening to me. Sorrow, but understanding and then JOY. I didn't understand the anger, towards myself or others. Now, I can see where so much pain has come from. I can show compassion and love towards myself and others. Whatever programming I had, has been deleted--destroyed. I look back with pride, hurt, and know that I, myself, can heal. What a blessing this woman has brought us! Thank you Dr. Joy DeGruy!
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Reviewed in the United States on November 3, 2024
★★★★★ 5
Aged wisdom and knowledge
Format: Paperback
Mental health and history goes hand and hand
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Reviewed in the United States on June 22, 2025
★★★★★ 4
Why do black people . . .
Format: Hardcover
I purchased this book because I had many questions I wanted answered. Most of them were questions of "Why?". My biggest question was why we as black people have so many unhealthy habits in how we treat each other.
As a young African American male who was raised by his mother in a predominantly white suburban area, I wanted to know why, when I encountered other black youth in more urban areas, they would tell me I "talk white." What is "talking white?" Basically, talking white means I was talking like I have an education. Why do so many members of the black community (those without an education) reject me for valuing education? Why is it that when one black person fidns a way out of the ghetto, it seems the whole neighborhood, church included, condems that person for leaving "his/her people" and wanting to live in the suburbs with the whites? Why don't we support one-another in this society that has always held us from achieving our full potential?
I wanted to learn why we seem to have no clue of who we are, and so many of us, young and old, strive to "prove" we are "black enough." So talking a certain way makes us black? Or is it eating certain foods that makes us "black"? Listening to only certain kinds of music? We lack a firm sense of cultural identity. We take rebellious pride in being at the bottom, and equate success with "whiteness." We denounce the achievements of any black person and ostracize him from the community. We work to pressure our own to stay at the bottom.
In this very interesting book, the author, Dr. Joy Degruy Leary, proposes a number of explanations for why the African American community has developed these and other unhealthy cultural habits. Leary examines this very real "crabs in the barrel" mentality, as well as many other self-destructive habits which plague the black community. Leary establishes a diagnoses, and calls it Post-Traumatic Slave Syndrome. Leary presents a very strong argument that the behaviors are all symptoms that have been passed down through the generations of African American people from the dawn of the trans-atlantic slave trade to today. Leary uses her own observations to support her theory of Post-Traumatic Slave Syndrome.
This book is a very thoughtful read. The reason I give this work only four stars is because I truly feel that Leary's argument would have been much more affirmed and effective if she had included a visual timeline to help the reader to better understand the timeframes and chain of events in history discussed in the book. The argument also would have been more effective if the author spent more time on each point. At times it seems she's just getting started before summarizing all that was just said and moving on. Scholarly sources are cited and research is used, but the book does not explore any one study or statistic in great depth. It is a fast read.
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Reviewed in the United States on September 16, 2012
★★★★★ 5
America's Biggest Lie
African Americans have been brutalized beyond imagination. Then told that they were the ones that were less than human. It boggles the mind. The whites beat, burned, skinned, lynched, mutilated and murdered African Americans at will. And these same whites believe (to this day) that this is their god given right. Even worst was the emotional and intellectual scars left from the lies that were told. If I didn't see the consequence of this everyday, I would think someone was lying to me: Some kind of Cosmic joke. The white criminals are the heroes and the African victims are the villains. This cannot actually be real. But it is. Whites stripped the Africans of their names, religions, dignity, culture and their humanity. Then called them less than human. This slight of hand is beyond comprehension. The funniest part is when I hear Whites yell to blacks "go back to Africa." This is tantamount to kidnapping someone, tying them up, putting them in your basement then yelling at them to get out of your house. Insane. This has been going on for 400 years. Wow. And America thinks it the moral leader of the free world. I have to pinch myself. This has to be a dream.... or a nightmare. The book opened my eyes.
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Reviewed in the United States on August 18, 2017
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