Ericsson small-cell category illustration
Illustration
Ericsson

IRU 2242

What it does: Provides coverage for a local radio cell. Operating RF bands / ranges: Frequency-independent IRU; RF band is selected by the connected Radio Dot variant.

2 part numbers: KRC161444/1 / KRC161444/1; KRC161444/2; KRC161444/3

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Main specifications

Operating RF bands / rangesFrequency-independent IRU; RF band is selected by the connected Radio Dot variant
Interfaces / connectors2 × SFP+ CPRI ports; 8 × RJ-45 Radio Dot Interface ports; -48 V DC supply; external-alarm interface
Interfaces and data rates2 × CPRI SFP+ (electrical or optical): /2 2.5/4.9 Gbps, /3 2.5/4.9/9.8/10.1 Gbps; 8 × CAT6/RJ-45 RDI carrying signal and power; 2 external alarms
Power supply-48 V DC; maximum consumption 175 W; supplies DC power to connected Radio Dots over RDI
Installation environmentIndoor RBS 6601 or RBS 6202 chassis; alternatively rack/wall deployment in Remote IRU Enclosure
Additional technical information
Weight
3.2 kg
Dimensions
350 × 280 × 31 mm (8U notation in source; axis order not printed)
IP rating
IP20
Capacity
Up to 8 RD 2242/RD 2243 single-band 2 × 2 MIMO Dots per IRU; a pair of IRUs supports up to 8 dual-band RD 4442 Dots with Y-splitter; 2 external-alarm conditions
Chassis
350 × 280 × 31 mm (8U) RBS 6000 plug-in module for RBS 6601/RBS 6202; optional separate 19-inch Remote IRU Enclosure
Modules
2 pluggable CPRI SFP+ transceiver positions; optional Y-splitter accessory for dual-band RD 4442; optional Remote IRU Enclosure
Functional role
Radio Dot System hub/module: converts Baseband CPRI/baseband to IF and distributes signal, DC power and control to up to eight Radio Dots
Architecture
DU/Baseband → dual CPRI SFP+ → IRU 2242 (DC/control/baseband-to-IF) → eight CAT6/RJ-45 Radio Dot Interfaces → Radio Dots (IF-to-RF/transceiver)
Subtype
RBS 6000 Indoor Radio Unit; /2 standard 5 Gbps CPRI, /3 enhanced 10 Gbps CPRI
Details
Green Operational LED; red Fault LED; non-destructive temperature -15 to +65 °C; operating temperature follows the host-enclosure specification
Connection notes
Baseband; up to 8 RD2242/RD2243; RD4442 via two IRU and Y-splitter
Installation conditions
RBS 6601 / RBS 6202 / Remote IRU Enclosure

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