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Ericsson radio category illustration
Illustration
Ericsson

Radio 2271 B20

What it does: Converts and amplifies radio signals. Operating RF bands / ranges: B20.

1 part number: KRC1612220/1

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Main specifications

TechnologiesNR FDD, ESS, NB-IoT, LTE FDD, GSM and WCDMA; mixed-mode operation supported
Operating RF bands / rangesB20
Browse: B20
TX / RX modes2T2R
Interfaces / connectors2 × 4.3-10 RF TxRx; 2 x LC on SFP28 FullAXS DATA; 14-pin DIN EXT-ALARM/FAN; ALD Ctrl; -48 V DC input; grounding interface
Interfaces and data rates2 optical CPRI ports, supporting radio cascading up to 24.3 Gbit/s; RET/TMA control including 2-wire and 3-wire connections
Power supplyRated -48 V DC; operating -36.0 to -58.5 V DC; startup above -46 V DC; 20 A recommended and 32 A maximum circuit breaker
FamilyRadio 2271
Installation environmentIndoor or outdoor; wall, pole, tower or mast mounting; portrait or bookshelf orientation; natural-convection base unit with optional fan; normal -40 to +55 C
Additional technical information
Dimensions
Without fan: 409 × 269 × 111 mm (H x W x D); with fan: 409 × 269 × 152 mm
Weight
9.6 kg without fan; 11.0 kg with fan (both +/-5%)
Synchronization
When operated over its documented classic CPRI interface: CPRI slave synchronization; the radio recovers the incoming CPRI bit clock for radio/link transmission and receives time information from the REC/Baseband
Chassis
Standalone Radio 2271 enclosure; optional fan increases depth from 111 to 152 mm
Modules
Pluggable SFP28 optical transceiver modules; optional fan unit; optional optical-indicator cover
Functional role
Indoor/outdoor 2TX/2RX FDD radio unit for external antenna systems
Architecture
Self-contained two-branch radio enclosure with two external-antenna RF paths, two pluggable SFP28 optical CPRI interfaces, RET/TMA and alarm functions, plus optional fan unit and optical-indicator cover
Subtype
2TX/2RX external-antenna wide-area FDD radio
Details
Normal environment -40 to +55 C, 5-100% RH, solar radiation <=1120 W/m2; fan power/control, EC-light and external alarms share the 14-pin DIN interface

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