Cisco Cisco IP Phone 8841 Designanleitung
Cisco Wireless IP Phone 8821 and 8821-EX Wireless LAN Deployment Guide
12
http://www.cisco.com/c/en/us/products/collateral/wireless/aironet-antennas-
accessories/product_data_sheet09186a008008883b.html
accessories/product_data_sheet09186a008008883b.html
All indoor Cisco Meraki access points have internal antennas and all outdoor Cisco Meraki access points require external
antennas.
antennas.
https://meraki.cisco.com/products/wireless/antennas-power
3
rd
party antennas are not supported, as there is no interoperability testing performed against 3
rd
party antennas including
Distributed Antenna Systems (DAS) and Leaky Coaxial Systems.
Please refer to the following URL for more info on Cisco Wireless LAN over Distributed Antenna Systems.
Please refer to the following URL for more info on Cisco Wireless LAN over Distributed Antenna Systems.
http://www.cisco.com/c/en/us/products/collateral/wireless/aironet-1130-ag-series/positioning_statement_c07-565470.html
Note: Cisco Access Points with integrated internal antennas (other than the W series) are to be mounted on the ceiling as they
have omni-directional antennas and are not designed to be wall mounted.
Protocols
Supported voice and wireless LAN protocols include the following:
• 802.11a,b,d,e,g,h,i,n,r,ac
• Wi-Fi MultiMedia (WMM)
• Traffic Specification (TSPEC)
• Traffic Classification (TCLAS)
• Simple Certificate Enrollment Protocol (SCEP)
• Session Initiation Protocol (SIP)
• Real Time Protocol (RTP)
• G.722, G.711, iSAC, iLBC, G.729
• Cisco Discovery Protocol (CDP)
Wi-Fi
The following table lists the data rates, ranges, and receiver sensitivity info for Cisco Wireless IP Phone 8821 and 8821-EX.
5 GHz Specifications
5 GHz - 802.11a
Data Rate
Modulation
Receiver Sensitivity
Max Tx Power = 14 dBm
(Depends on region)
(Depends on region)
6 Mbps
OFDM - BPSK
-94 dBm
9 Mbps
OFDM - BPSK
-93 dBm
12 Mbps
OFDM - QPSK
-92 dBm
18 Mbps
OFDM - QPSK
-89 dBm
24 Mbps
OFDM - 16 QAM
-86 dBm