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4 Appendix 1 Technical Specifications
Standard
Working frequency
Antenna
Wireless
Output power
Receive sensitivity
Max
speed
Working voltage
Port
Working
Hardware
temperature
Storage temperature
Working humidity
Dimension
Software
Encryption mode
Item
IEEE802.11 b/g/n
（2T2R）
2400~2500MHz （ support frequency extension, extension
range 2312~2732MHz）
5745~5825MHz （ support frequency extension, extension
range 4900~6100MHz）(only supported by DH-PFM889-IM)
Built-in Omnidirectional antenna: gain 3dBi
27dBm
11b
-97dBm@1Mbps
11n
-72dBm@MCS7
transmission
11n： 300Mbps(40M
channel width)
48V PoE or 12V DC
3×10/100M
Base-TX (Cat. 5/5E，
RJ-45) network port
-30℃～+65℃
-40℃～+85℃
5%～95%RH non-condensation
150*150*31.6mm
WPA-PSK/WPA2-PSK
DH-PFM889-I
：
：
DH-PFM889-IM
IEEE802.11 a/n/ac（2T2R）
IEEE802.11 b/g/n（2T2R）
11b：-93dBm@1Mbps
11g： -92dBm@6Mbps
11a：-91dBm@6Mbps
11n：-74dBm@MCS7
11ac：-67dBm@MCS9
11ac： 867Mbps （ 80M channel width）
11n：300Mbps(40M channel width)
48V PoE or 48V DC
2×10/100/1000M
Base-TX
5/5E， RJ-45) network port
(Cat.
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