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Appendix 5 Technical Specification
Type Item
DH-PFM880
DH-PFM881
Wirele
ss
techn
ology
Standard
IEEE802.11a/n (2T2R 300Mbps)
Modulation
802.11 a/n:OFDM
Antenna
External antenna: gain 16dbi
Internal antenna: gain 15dbi
Equivalent output power
+27dBm(@MCS0,11n)
＋
23dBm(@MCS0,11n)
＋
15dBm(@300Mbps,11n)
Receiving sensitivity
-74dBm @ 65Mbps, -96dBm@1Mpbs
Optimal transmission distance
0-3km
Working frequency
5745-5825
MHz
(support
frequency
extension,
extension
range:4920-6100MHz)
Wireless authentication
SRRC
Wireless direction angle
Horizontal 90°, angle of elevation
12°
Horizontal 40°
，
angle of elevation 15°
Transmission rate
11n:13.5/15/27/30/40.5/45/54/60/81/90/108/120/121.5/135/150/162/180/21
6/240/270/300Mbps(40MHz Channel width)
11n:130/117/104/78/65/58.5/52/39/26/19.5/13/6.5Mbps (20MHz Channel
width)
11a: 54/48/36/24/18/12/9/6Mbps(self-adaption)
Hard
ware
Working voltage
12~24V POE
Power consumption
MAX 10W
MAX 8W
Interface
POE
Indicator light
Wi-Fi status indicator light /LAN interface indicator light /power indicator
light /signal strength indicator light
Working temperature
-30
℃～
+70
℃
Storage temperature
-30
～
+80
℃
Working humidity
5%
～
95%RH non-condensing
Host machine dimension (mm)
233×233×45
270×50×80
Antenna dimension (mm)
450×140×35
N/A
Host machine weight
2.4Kg
0.45Kg
Antenna weight
1.26Kg
N/A
Protection level
IP66
N/A
Softw
are
Way of encryption
WEP/WPA-PSK/WPA2/CCMP(AES)/TKIP
Network mode
Route/
network bridge
Working mode
AP/client /WDS AP/WDS client
Security mechanism
IP/MAC
address filtering, hide network name and so on
Network protocol
TCP/UDP/ARP/ICMP/DHCP/HTTP/NTP
TDMA enhancement
Support (TDMA removes effects of hidden nodes and promotes
one-to-many performance substantially)
Auto ACK timing adjustment
Support (optimize parameters automatically during long-distance
communication, and optimize performance )
Management and log
NTP, SNMP, Syslog, Telnet
Webpage configuration management
Support webpage configuration
Firmware update
Support webpage update of firmware
Flexible configuration of bandwidth
5M/10M/20M/40MHz
