Same product family
Ericsson
AIR 3227 B78T
What it does: Radio communications / beamforming. Operating RF bands / ranges: B78T.
1 part number: KRD901201/11
Viewing: model overview
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Main specifications
Technologies5G NR TDD
Operating RF bands / rangesB78T
Uplink frequency3410–3610 MHz (TDD shared RF range)
Downlink frequency3410–3610 MHz (TDD shared RF range)
TX / RX modes32T32R
RF output power200 W maximum nominal; license/HW activation required above 20 W
Interfaces / connectors2 × LC optical connectors on SFP28/FullAXS; SMA female TX monitor; DIN 14 female EC-light/external-alarm; −48 V DC power connector; 2 × 6 mm dual-lug ground
Interfaces and data rates2 × eCPRI data interfaces supporting 10.3 and 25.8 Gbps; 25 Gbps Ethernet-port operation documented; optical links carry traffic and timing between AIR and Baseband; EC-light/external alarm; TX monitor
Power supplyNominal −48 V DC, operating −36.0 to −58.5 V DC; 2-wire DC-C or 3-wire DC-I; at 200 W RF output maximum load 34 A at −36 V and maximum allowed fuse 40 A; built-in Class 1/Type 1 SPD. The 2021 Rev X deployment guide separately lists 826 W consumption and a 25 A deployment fuse
FamilyAIR 3227
Installation environmentOutdoor pole, wall, tower or mast mounting; optional swivel kit SXK1092015/1 or tilt/swivel kit SXK1092016/1
IP ratingIP65
Additional technical information
- Dimensions
- 539 × 370 × 250 mm
- Weight
- 24.5 kg (±5%); mounting kit adds 4.4 kg (SXK1092015/1) or 5.2 kg (SXK1092016/1)
- Bandwidth
- 200 MHz
- Capacity
- NR: up to 2 carriers; maximum MIMO capability 8 DL layers / 8 UL layers
- Synchronization
- Timing signals are transported over the optical eCPRI links between AIR and Baseband
- Chassis
- Self-contained outdoor AIR enclosure with radome, cooling fins, lifting eye and bottom connection interfaces
- Modules
- Integrated active antenna/radio; 2 pluggable Ericsson-approved SFP28 optical modules; optional mounting kit
- Functional role
- Outdoor TDD Advanced Antenna System radio with integrated active antenna
- Architecture
- Integrated active-antenna/radio unit with 32 transmit/receive branches, beamforming and MU-MIMO; two optical eCPRI links to Baseband
- Subtype
- 32TX/32RX TDD AAS radio
- Details
- 0.85 kW maximum heat dissipation at 200 W RF output; wind load at 42 m/s: 307 N front / 122 N side; normal environment −40 to +55 °C and 2–100% RH; convection cooled with no active cooling components
- Installation conditions
- Wall / pole / tower / mast
- Connection notes
- Baseband via eCPRI
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