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Fortinet / FortiAP / Fortinet FortiAP 831F
FortiAP

Fortinet FortiAP 831F

Fortinet FortiAP 421E and 831F access points support the latest 802.11ac Wave 2 standard. Additional features include 802.11ac explicit transmit beamforming (TxBF), multi-user MIMO (MU-MIMO), and more.

SKU: FORTIAP 831F
Fortinet FortiAP 831F
Indoor AP
Hardware Type
3 + 1 BLE
Number of Radios
4 2.4GHz band WiFi + 8 5GHz band WiFi + I Dual band Scanning
Number of Antennas
PIFA: 4.0 dBi for 2.4 GHz band WiFi antennas 6.0 dBi for 5.0
Antenna Type and Peak Gain

Key Features

  • Tri-Radio 2.4 GHz + 5 GHz + scanning
  • 9 Internal/External Antennas
  • 8x8 MU-MIMO
  • Up to 1,147 Mbps + 4,804 Mbps

Technical Specifications

SpecificationValue
Hardware TypeIndoor AP
Number of Radios3 + 1 BLE
Number of Antennas4 2.4GHz band WiFi + 8 5GHz band WiFi + I Dual band Scanning + 1 2.4GHz band BLE
Antenna Type and Peak GainPIFA: 4.0 dBi for 2.4 GHz band WiFi antennas 6.0 dBi for 5.0 GHz band WiFi antennas 4.0 dBi for dual band Scanning radio antenna 4.5 dBi for 2.4 GHz band BLE antenna
Frequency Bands (GHz)2.400–2.4835, 5.150–5.250, 5.250–5.350, 5.470–5.725, 5.725–5.850
Radio 1 CapabilitiesFrequency Band: 2.4 GHz Channel width: 20/40 MHz Modulation: BPSK, QPSK, QAM64 MIMO chains: 4x4 service
Radio 2 CapabilitiesFrequency Band: 5.0 GHz Channel width: 20/40/80/80+80/160MHz Modulation: BPSK, QPSK, QAM64, QAM256, and QAM1024 Mimo chains: 8x8 service in mode 1 or 4x4+4x4 service in mode 2
Radio 3 CapabilitiesFrequency bands: 2.4GHz and 5.0GHz MIMO Chains: 1x1 Frequency Scanning
Maximum Data RateRadio 1: up to 1147.5 Mbps Radio 2: up to 4.804 Gbps in 8x8 MIMO and in 4x4 + 4x4 MIMO modes
Bluetooth Low Energy RadioBluetooth scanning and iBeacon advertisement @ 10 dBm max TX power
Interfaces1x 100/1000/2500 Base-T RJ45 1 x 10/100/1000 Base-T RJ45 1x Type 3.0 USB, 1x RS-232 RJ45 Serial Port
Power over Ethernet (PoE)• 2x 802.3at/bt/30W Passive PoE in (Full function) • 1x 802.3at PoE in (USB3.1 disabled)
Simultaneous SSIDsUp to 24
EAP Type(s)EAP-TLS, EAP-TTLS/MSCHAPv2, EAPv0/EAPMSCHAPv2, PEAPv1/EAP-GTC, EAP-SIM, EAP-AKA, EAP-FAST
User/Device AuthenticationWPA™, WPA2™, and WPA3™ with 802.1x or Preshared key, WEP, Web Captive Portal, MAC blacklist & whitelist
Maximum Tx Power (Conducted)Radio 1: 2.4 GHz 27 dBm / 500 mW (4 chains combined)* Radio 2: 5 GHz 25.5 dBm / 354 mW (4 chains combined)* Radio 3: NA
Kensington LockYes
IEEE Standards802.11a, 802.11b, 802.11d, 802.11e, 802.11g, 802.11h, 802.11i,802.11j, 802.11k, 802.11n, 802.11r, 802.11v, 802.11ac, 802.11ax (Wi-Fi 6), 802.1Q, 802.1X, 802.3ad, 802.3af, 802.3at, 802.3az, 802.3bz
SSID Types SupportedLocal-Bridge, Tunnel, and Mesh
Per Radio Client CapacityUp to 512 clients per radio (Radio1 and Radio2)
Cellular Co-existenceYes
LED Off ModeYes
OFDMAYes (UL and DL)
Spatial Reuse (BSS Coloring)Yes
UL MU-MIMO 802.11ax modeYes
DL-MU-MIMOYes
Enhanced Target Wake Time (TWT)Yes
ZeroWait DFS/Agile DFSNo
Rogue Scan radio modesDedicated
WIPS / WIDS radio modesDedicated
Packet Sniffer ModeYes
Spectrum AnalyzerYes
Length x Width x Height9.05 x 89.05 x 2.15 inches (230 x 230 x 55 mm)
Weight2.25 lbs (1.02 kg)
Package (shipping) Weight4.2 lbs (1.9 kg)
Mounting OptionsCeiling, T-Rail, and Wall
Included AccessoriesMount kit for Ceiling, T-Rail, and Wall
Power SupplyPoE type 802.3af/at/bt Supports dual redundant 802.3af/at DC Power: 12V DC / 3 Amps
Power Consumption (Maximum)33W
PSE functionalityNo
POE Mode Single 5GDC/2at --> Full Mode ; Radios will be in (8x8|4x4) & USB Enabled 1at/2af --> High Mode ; Radios will be in (8x8|4x4) & USB Disabled 1af --> Low Mode ; Radios will be [2x2|2x2], Tx Power 10 dBm & USB Disabled
POE Mode Dual 5GDC/2at --> Full Mode ; Radios will be in [4x4|4x4|4x4] & USB Enabled 1at/2af --> High Mode ; Radios will be in [4x4|4x4|4x4] & USB Disabled 1af --> Low Mode ; Radios will be [2x2|2x2|2x2], Tx Power 10 dBm & USB Disabled
Humidity5 - 90% non condensing
Operating / Storage Temperature32–122°F (0–50°C) / -22–-158°F (-30–70°C)
DirectivesLow Voltage Directive • RoHS
UL2043 Plenum MaterialNo
Mean Time Between Failures> 10 Years
Surge Protection Built InYes
WiFi Alliance CertifiedYes
DFSCE
Limited Lifetime WarrantyYes

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Pricing Notes: Pricing and product availability subject to change without notice E&OE.