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Ericsson

AIR 21 B7A2P

What it does: Radio transmission / reception

2 part numbers: KRC 118 070/1 / KRC118070/1

Viewing: model overview

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Additional technical information
Family
PN KRC118070 / 1; AIR 21
For PN KRC118070 / 1.
TX / RX modes
PN KRC118070/1; Active radio: 2T4R; two integrated RUs; two columns of dual-polarized antennas (four receive antennas)
For PN KRC118070/1.
Dimensions
PN KRC118070/1; 1429 × 307 × 200 mm (H × W × D)
For PN KRC118070/1.
Weight
PN KRC118070/1; 44.3 kg without installation kit
For PN KRC118070/1.
Installation environment
PN KRC118070/1; Outdoor only; pole/mast/tower or wall mounting; cable connections face down
For PN KRC118070/1.
IP rating
PN KRC118070/1; IP55
For PN KRC118070/1.
Interfaces / connectors
PN KRC118070/1; −48 V DC input; M8 grounding point; 1 required + 1 optional optical SFP; 4 × 7/16 passive-antenna RF
For PN KRC118070/1.
Interfaces and data rates
PN KRC118070/1; 2 data port(s); cascading support: yes; different line rates on different ports: no; CPRI line rates: 2.5 Gbps; optical cable 1 required and cable 2 optional between active AIR and main unit; 4 passive-antenna RF interface(s); −48 V DC and ground
For PN KRC118070/1.
Power supply
PN KRC118070/1; −48 V DC nominal; −38.0 to −58.5 V DC operating range; 15/16 A recommended fuse/circuit breaker
For PN KRC118070/1.
Technologies
PN KRC118070/1; Active radio: LTE; two passive X-pol antenna parts are not additional radios
For PN KRC118070/1.
Operating RF bands / ranges
PN KRC118070/1; Active radio: B7; two passive antennas: each 1710–2170 MHz (bands 1/2/3/4)
For PN KRC118070/1.
RF output power
PN KRC118070/1; Without HWAC: 20 W total (2 × 10 W); with HWAC: 60 W total (2 × 30 W)
For PN KRC118070/1.
Capacity
PN KRC118070/1; With license: up to 4 LTE carriers; WCDMA and GSM not used on the active B7 radio
For PN KRC118070/1.
Synchronization
PN KRC118070/1; 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
For PN KRC118070/1.
Chassis
PN KRC118070/1; Single outdoor AIR enclosure with radome, integrated solar-shield/cooling surfaces, lifting eyes, mounting brackets and connection panel; optional external PSU
For PN KRC118070/1.
Modules
PN KRC118070/1; 2 integrated radio boards/RUs with common MMI; integrated active/passive antenna and RETs; 1 required and 1 optional optical SFP module; optional PSU AC 02
For PN KRC118070/1.
Functional role
PN KRC118070/1; Outdoor antenna-integrated radio: two active Radio Units integrated with a dual-polarized active/passive antenna
For PN KRC118070/1.
Architecture
PN KRC118070/1; Two physically separate radio boards/RUs with common MMI integrated into the same enclosure as a dual-polarized active/passive antenna; one or two optical links connect the active part to the RBS main unit
For PN KRC118070/1.
Subtype
PN KRC118070/1; AIR 21 with 2TX/4RX active radio, two integrated radio boards and passive antenna part
For PN KRC118070/1.
Details
PN KRC118070/1; Normal environment −40 to +55 °C, 5–100% RH, solar radiation ≤1120 W/m²; no acoustic noise; 730 N maximum wind load at 42 m/s
For PN KRC118070/1.
Connection notes
DU/Baseband via CPRI

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