Aruba 228

Wi-Fi Radio Specifications

• In addition to 802.11n data rates, the 2.4-GHz radio supports 802.11ac data rates using 256-QAM modulation. This gives TurboQAM-enabled clients a 33% boost above the maximum supported data rate.

Software-configurable dual radio supports 5 GHz and 2.4 GHz

3×3 MIMO with three spatial streams and up to 1.3 Gbps wireless data rate

Supported frequency bands (country-specific restrictions apply):

• 2.4000 GHz to 2.4835 GHz
• 5.150 to 5.250 GHz
• 5.250 to 5.350 GHz
• 5.470 to 5.725 GHz
• 5.725 to 5.850 GHz

Available channels: Dependent on configured regulatory domain

Dynamic frequency selection (DFS) optimizes the use of available RF spectrum

Supported radio technologies:

• 802.11b: Direct-sequence spread-spectrum (DSSS)
• 802.11a/g/n/ac: Orthogonal frequency-division multiplexing (OFDM)
• 802.11n/ac: 3×3 MIMO with up to three spatial streams

Supported modulation types:

• 802.11b: BPSK, QPSK, CCK
• 802.11a/g/n: BPSK, QPSK, 16-QAM, 64-QAM
• 802.11ac: BPSK, QPSK, 16-QAM, 64-QAM, 256-QAM

Transmit power: Configurable in increments of 0.5 dBm

Maximum (aggregate, conducted total) transmit power (limited by local regulatory requirements):

• 2.4-GHz band: +28 dBm (23 dBm per chain)
• 5-GHz band: +28 dBm (23 dBm per chain)

Advanced Cellular Coexistence (ACC) feature to effectively deal with interference from cellular systems

Maximum ratio combining (MRC) for improved receiver performance

Cyclic delay diversity (CDD) for improved downlink RF performance

Short guard interval for 20-MHz, 40-MHz and 80-MHz channels

Space-time block coding (STBC) for increased range and improved reception

Low-density parity check (LDPC) for high-efficiency error correction and increased throughput

Transmit beam-forming (TxBF) for increased reliability in signal delivery

Supported data rates (Mbps):

• 802.11b: 1, 2, 5.5, 11
• 802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54
• 802.11n: 6.5 to 450 (MCS0 to MCS23)
• 802.11ac: 6.5 to 1,300 (MCS0 to MCS9, NSS = 1 to 3)

802.11n high-throughput (HT) support: HT 20/40

802.11ac very high throughput (VHT) support: VHT 20/40/80

802.11n/ac packet aggregation: A-MPDU, A-MSDU

Power sources sold separately

Power over Ethernet (PoE+): 802.3at-compliant

• Auto-sensing link speed and MDI/MDX
• Load balancing support to achieve platform throughput greater than 1 Gbps
• PoE-PD: 802.3at PoE+

Serial console interface (Micro USB)

• AP-220-MNT-W1 is directly compatible
• 270 Series outdoor AP mounts (AP-270-MNT-V1, AP-270-MNT-V2, AP-270-MNT-H1, AP-270-MNT-H2) are compatible when the AP-270-MNT-ADP adapter is utilized

• 222 mm (L) x 150 mm (W) x 75 mm (H), 8.5” (L) x 6” (W) x 2.5” (H)
• 1.225 kg/2.700 lbs

• Temperature: -40° C to +60° C (-40° F to +140° F)
• Humidity: 5% to 95% non-condensing

Storage and transportation:

• Temperature: -40° C to +70° C (-40° F to +158° F)
• Operating Altitude: 3,000 m

CE Marked

R&TTE Directive 1995/5/EC

Low Voltage Directive 72/23/EEC

EN 300 328

EN 301 489

EN 301 893

UL/IEC/EN 60950

EN 60601-1-1 and EN 60601-1-2

For more country-specific regulatory information and approvals, please see your Aruba representative.

UL2043 plenum rating

Wi-Fi Alliance (WFA) certified 802.11a/b/g/n/ac

Aruba Instant 4.2.0