Question 1

What are the core electrical, RF power output, and optical CPRI specifications of the Nokia Flexi Multiradio 2219 RRU?

Accepted Answer

The Nokia NSN Flexi Multiradio 2219 RRU (SKU: NOK-BTS-NSN-2219-RRU) features a 2T2R MIMO architecture running on nominal -48V DC power (operating range -36V to -57V DC) with a typical power consumption of approximately 380W under full RF load. Its RF section supplies two 7/16 DIN or 4.3-10 female connectors delivering up to 2x60W or 2x80W rated output, backed by an advanced Doherty power amplifier and Digital Pre-Distortion (DPD) to ensure strict 3GPP ACLR and IMD3 compliance. For baseband connectivity, it houses dual optical SFP/SFP+ transceivers supporting OBSAI (3.072/6.144 Gbps) and CPRI protocols (up to 9.8 Gbps), facilitating low-latency fiber links over standard single-mode fiber (SMF) up to 10-20 km.

Question 2

What is the BBU compatibility profile of the Nokia 2219 RRU, and does it support cross-generation AirScale integration and optical cascading?

Accepted Answer

The Nokia 2219 RRU natively integrates with legacy Nokia Flexi Multiradio BTS baseband units (e.g., FSMF system modules with FBBA/FBBC sub-modules) and provides seamless cross-generation connectivity to the Nokia AirScale platform (ASIA/ASIK control cores paired with ABIA/ABIL baseband capacity cards) via standardized CPRI/OBSAI links. The unit supports dynamic power sharing across GSM, WCDMA, and LTE FDD multi-carrier modes. With dual CPRI ports, it enables daisy-chain or star cascading topologies equipped with automated optical delay calibration and path redundancy, ensuring cost-efficient expansion and minimal downtime during network modernization.

Question 3

What are the environmental durability, thermal design, and surge protection ratings for the Nokia 2219 RRU in outdoor harsh environments?

Accepted Answer

Engineered for hostile outdoor deployments, the Nokia 2219 RRU features a fanless, high-grade die-cast aluminum chassis certified to IP65 and NEMA 4X, providing exceptional resistance against UV radiation, acid rain, and salt-fog corrosion. It relies on passive convection cooling without moving parts, operating stably across -40°C to +55°C ambient temperatures. Electrically, it incorporates integrated surge protection compliant with ITU-T K.21/K.45 and IEC 61000-4-5 standards (handling RF port surges up to 20kA), along with DC reverse-polarity protection, over-voltage/over-current cut-offs, and self-recovering load isolation.

Key specifications	Value
Board Type	Outdoor distributed base station multimode remote radio unit (RRU/RRH 2T2R)
Port Density & Specs	2 RF antenna feeder outputs (7/16 DIN or 4.3-10) + dual high-bandwidth CPRI optical fiber ports
Supported Chassis	Compatible with Nokia Flexi Multiradio BTS / AirScale system baseband units
Subscriber Capacity	Supports GSM / WCDMA / LTE multi-carrier integrated RF amplified output
Typical Power Consumption	Typical operating power consumption: approximately 380W (-48V DC power supply)
Operating Temperature	-40°C ~ +55°C (IP65 naturally cooled corrosion-resistant cast-aluminum enclosure)

Nokia Siemens NSN Flexi Multiradio 2219 Remote Radio Unit (RRU 2T2R IP65)

What this product is

What this product is

What problem it solves

Who and where it is for

Core advantages

Technical specifications

Applications

Cellular macro tower-mounted wireless coverage

Rooftop antenna-adjacent distributed base stations

Railway and highway cellular corridor links

Frequently asked questions

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