Software
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Catalyst 9166I
● Cisco IOS ® XE Software Release 17.9.1 or later
Catalyst 9166D1
● Cisco IOS® XE Software Release 17.12.1 or later
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Supported wireless LAN controllers
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● Cisco Catalyst 9800 Series Wireless Controllers (physical or virtual)
● Cisco Catalyst 9000 switches with Embedded Wireless Controller in SDA mode
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802.11n version 2.0 (and related) capabilities
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● 4x4 MIMO with four spatial streams
● Maximal Ratio Combining (MRC)
● 802.11n and 802.11a/g
● 20- and 40-MHz channels
● PHY data rates up to 1.5 Gbps (40 MHz with 5GHz and 20 MHz with 2.4GHz)
● Packet aggregation: Aggregate MAC Protocol Data Unit (A-MPDU) (transmit and receive), Aggregate MAC Service Data Unit (A-MSDU) (transmit and receive)
● 802.11 Dynamic Frequency Selection (DFS)
● Cyclic Shift Diversity (CSD) support
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802.11ac
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● 4x4 downlink MU-MIMO with four spatial streams
● MRC
● 802.11ac beamforming
● 20-, 40-, 80-, and 160-MHz channels
● PHY data rates up to 3.4 Gbps (Dual 4x4 80+80 MHz on 5GHz)
● Packet aggregation: A-MPDU (transmit and receive), A-MSDU (transmit and receive)
● 802.11 DFS
● CSD support
● Wi-Fi Protected Access (WPA) 3 support
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802.11ax
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● 1024 QAM
● 4x4 uplink/downlink MU-MIMO with four spatial streams (2.4GHz, 5GHz and 6GHz)
● Uplink/downlink OFDMA
● TWT
● BSS coloring
● MRC
● 802.11ax beamforming
● 20-, 40-, 80-, and 160-MHz channels (6GHz)
● 20-, 40-, 80-, and 80+80-MHz channels (5GHz)
● 20-MHz channels (2.4GHz)
● PHY data rates up to 7.78 Gbps (4x4 160 MHz on 6GHz, 4x4 80 MHz on 5GHz, and 4x4 20 MHz on 2.4GHz)
● Packet aggregation: A-MPDU (transmit and receive), A-MSDU (transmit and receive)
● 802.11 DFS
● CSD support
● WPA3 support
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Antennas
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Catalyst 9166I
● 2.4GHz: Peak gain 3 dBi, internal antenna, omnidirectional in azimuth
● 5GHz: Peak gain 5 dBi, internal antenna, omnidirectional in azimuth
● 5GHz (XOR): Peak gain 5 dBi, internal antenna, omnidirectional in azimuth
● 6GHz: Peak gain 4 dBi, internal antenna, omnidirectional in azimuth
Catalyst 9166D1
● 2.4GHz: Peak gain 6 dBi, directional antenna, (70x70)
● 5GHz: Peak gain 6 dBi, directional antenna, (70x70)
● 5GHz (XOR): Peak gain 8 dBi, directional antenna, (60x60)
● 6GHz: Peak gain 8 dBi, directional antenna, (60x60)
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Interfaces
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● Catalyst 9166 Series: 1x 100M/1000M/2.5G/5G Multigigabit Ethernet (RJ-45)
● Management console port (RJ-45)
● USB 2.0 at 4.5W
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Indicators
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● Status LED indicates boot loader status, association status, operating status, boot loader warnings, and boot loader errors
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Dimensions (W x L x H)
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● Access point (without mounting brackets):
◦ Catalyst 9166I: 9.5 x 9.5 x 2.2 in. (241.3 x 241.3 x 56.9 mm)
◦ Catalyst 9166D1: 9.5 x 9.5 x 2.28 in (241.3 x 241.3 x 57.9 mm)
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Weight
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Catalyst 9166I Series
● 3.54 lb (1.60 kg)
Catalyst 9166D1
● 3.50 lb (1.59 kg)
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Input power requirements
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● 802.3bt, Cisco Universal PoE (Cisco UPOE), 802.3at Power over Ethernet Plus (PoE+)
● Cisco power injectors: AIR-PWRINJ7=, AIR-PWRINJ6=, MA-INJ-6
● 802.3af PoE (only for configuration staging, all radios off)
● DC power input (54V/MA-PWR-50WAC)
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