Arista O-405E Wi-Fi 7 Outdoor Access Point with External Antennas

Arista O-405E Wi-Fi 7 Outdoor Access Point (External Antenna)

Ruggedised outdoor Wi-Fi 7 access point with external N-type antennas, tri-band 2x2:2 radios, 5.76 Gbps peak, up to 33 dBm EIRP, 5GbE PoE+ and 10G SFP+ uplinks, and -30°C to +65°C range.

Standard: Wi-Fi 7 (802.11be) Radios: 3×2x2:2 (2.4/5/6GHz) Antenna: External N-type connectors Operating Temp: -30°C to +65°C

The Arista O-405E is the external-antenna variant of the O-405 outdoor Wi-Fi 7 access point, sharing the same tri-band 2×2:2 MIMO radio configuration, 5.76 Gbps peak aggregate data rate, 802.3at PoE+ power requirement, dual 5GbE PoE+ and SFP+ 10G uplink interfaces, -30°C to +65°C operating range, and 1.4 million-hour MTBF, but replacing the O-405's integrated omnidirectional antennas with external N-type antenna connectors. N-type connectors support the same range of directional and high-gain outdoor antennas available for other external-antenna AP platforms in the Arista portfolio, making the O-405E the correct choice for deployments where the required coverage geometry cannot be achieved with an omnidirectional radiation pattern: point-to-multipoint campus distribution, directional sector coverage of outdoor seating areas or sports fields, and long-range connections to outbuildings or perimeter security points.

The achievable EIRP with appropriate external antennas reaches 31 dBm on 6GHz, 32 dBm on 5GHz, and 33 dBm on 2.4GHz (the regulatory maxima for those bands in most jurisdictions), allowing directional antennas to focus the AP's transmit power in the direction of the intended coverage area and achieve reliable connectivity at distances substantially beyond what the O-405's 5 dBi integrated antennas provide. Automated Frequency Coordination (AFC) on the 6GHz radio ensures that outdoor standard-power 6GHz operation remains within regulatory limits at the AP's specific location, cross-referencing the permissible channel and EIRP parameters against the AP's GPS coordinates. Memory and management specifications are identical to the O-405: 2 GB RAM, 8 GB eMMC, and the full CloudVision CV-CUE stack running locally for zero-touch provisioning, automated RF coordination, and AI-driven troubleshooting across the outdoor AP fleet.

N-Type External Antennas — Up to 33 dBm EIRP

N-type RF connectors accept the standard range of outdoor-rated directional and omnidirectional antennas, and the O-405E's published EIRP ceilings of 31 dBm on 6GHz, 32 dBm on 5GHz, and 33 dBm on 2.4GHz represent the regulatory limits achievable when an appropriately gainful directional antenna is connected. For outdoor link budgets, the difference between 31 dBm EIRP on 6GHz and the lower EIRP achievable with 5 dBi integrated antennas on the O-405 translates to measurably extended coverage distance in the aimed direction, extending reliable 6GHz associations from a few hundred metres to over a kilometre depending on the antenna pattern and local obstructions.

5GbE PoE+ and SFP+ 10G Dual Uplinks

Both a 5 GbE PoE+ RJ-45 port and a 10 GbE SFP+ fibre port are present on the O-405E, matching the O-405's uplink flexibility. The SFP+ port allows the AP to be connected via single-mode or multimode fibre without distance limitation, enabling mounting positions at distances greater than 100 metres from the nearest IDF, a common requirement for pole-mounted APs on large campuses, sports grounds, or perimeter security deployments. The PoE+ port on the RJ-45 interface powers the AP from any 802.3at switch port without requiring PoE++ infrastructure, and the 25W power budget is compatible with the O-405E's full radio configuration including all three access radios simultaneously.

-30°C to +65°C with 1.4M-Hour MTBF

The O-405E maintains the O-405's -30°C to +65°C operating range and 1.4 million-hour MTBF, including the external antenna configuration where the antenna connections are the primary additional weatherproofing point at installation. Standard practice of applying self-amalgamating tape to N-type connections seals the external connectors against water ingress, and the chassis itself carries the same weatherproof ratings for the Ethernet and SFP+ ports as the O-405. At -30°C (the rated lower operating limit), the AP boots and associates clients without a warm-up period, enabling outdoor deployments in cold-climate regions where winter temperatures frequently reach -20°C to -30°C and sustained operation at those temperatures is a practical requirement rather than an edge case.

Wi-Fi 7 6GHz with AFC and MLO

The 6GHz radio supports Automated Frequency Coordination (AFC) for outdoor standard-power operation, ensuring that the O-405E's 6GHz transmit parameters comply with jurisdiction-specific regulatory requirements at the AP's exact GPS-reported location. 802.11be multi-link operation (MLO) allows Wi-Fi 7 client devices to aggregate 2.4GHz, 5GHz, and 6GHz bands simultaneously, providing lower latency and higher throughput stability compared to single-band associations when multiple channels are available. In outdoor deployments where the O-405E covers an area adjacent to C-400 or C-430 indoor coverage, roaming Wi-Fi 7 clients experience consistent MLO capability as they transition between interior and exterior coverage cells, maintained by the common CloudVision CV-CUE management layer across both indoor and outdoor AP models.

Technical Specifications

Full specifications for Arista O-405E Wi-Fi 7 Outdoor Access Point (External Antenna)

Access Radios

3 × 2x2:2 concurrent (2.4 GHz, 5 GHz, 6 GHz)
Wi-Fi Standard

802.11be (Wi-Fi 7)
Peak Data Rate

5.76 Gbps
Max Clients

783 total (271 on 2.4GHz, 256 on 5GHz, 256 on 6GHz)
Maximum EIRP

31 dBm (6GHz), 32 dBm (5GHz), 33 dBm (2.4GHz)
Antenna

External with N-type connectors
Features

OFDM/OFDMA, dynamic frequency selection, AFC capable (6GHz)

LAN

5 GbE, PoE+ compliant, MACsec capable
SFP+

10 Gbps optical
Console

RS232 serial

RAM

2 GB
eMMC Flash

8 GB
NOR Flash

16 MB
Power Input

802.3at PoE+
Max Power Consumption

25 W
AP-Level Features

NAT, firewall, QoS at AP level; cloud or on-premises provisioning

Weight

1.7 kg (3.81 lbs)
Operating Temperature

-30°C to +65°C
Storage Temperature

-40°C to +70°C
Humidity

5–95% non-condensing
MTBF

1,400,000 hours @ 25°C; 1,100,000 hours @ 65°C

Documentation

Download product documentation and resources

Product Datasheet

Arista O-405E Wi-Fi 7 Outdoor Access Point (External Antenna) Datasheet

Arista O-405E Wi-Fi 7 Outdoor Access Point (External Antenna)