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分类：Ericsson base station
产品时间：2025-10-12
简要描述：
Baseband 6651（KDU 137 0093/11）Buy the Ericsson Baseband 6651 (KDU 137 0093/11) — a 5G-ready RAN Compute unit designed for macro 4G/5G sites.Features 12 × CPRI/eCPRI SFP28 ports, QSFP28 high-speed transport, and dual −48 V DC power inputs in a compact 1U / 19-inch chassis.Supports LTE, NR, and mixed NR+LTE operation, delivering powerful baseband processing for C-RAN / D-RAN architectures.
The Baseband 6651 (also marketed as RAN Processor 6651) is a high-capacity RAN Compute unit for 4G LTE and 5G NR macro sites. It handles switching, timing, IP traffic management, baseband processing, and radio interconnect with radios/AIR over CPRI or eCPRI. It is positioned for mid-band/high-band 5G and mixed LTE+NR deployments.
Form factor: 1U, 19-inch indoor unit with field-replaceable fan tray; supports horizontal or vertical rack mounting.
Radio interconnect (RI): 12 × SFP28 ports; all radio ports support CPRI and eCPRI (line rates up to CPRI 24.3G / eCPRI 25G).
Baseband-to-baseband / transport: TN/IDL A–D interfaces including QSFP+/QSFP28 and SFP/SFP+/SFP28 for 1/10/25G Ethernet (aggregation/backhaul and inter-BBU).
Operations & alarms: 1 × RJ45 LMT (local maintenance terminal) and external alarm inputs (panel-marked EA).
Power: Dual −48 V DC inputs (2- or 3-wire) with recommended 15 A fuse (max 25 A) for the 6651.
Operating modes: NR, LTE (FDD/TDD), mixed NR+LTE, Massive-IoT, Ericsson Spectrum Sharing; Elastic RAN and backhaul cascading supported.
25G front-haul: Simplifies connection to new AIR/Radio over 25G optics; designed for high-capacity 4G/5G sites.
Note: Final sector/cell/throughput limits depend on ERS software baseline, licensing, radio mix, and site topology.
| Item | Specification |
|---|---|
| Dimensions (H×W×D) | 44 × 483 × 383 mm (depth 383 mm, older tables also list “352 mm with protrusion” reference) |
| Weight | ≈ 7.7 kg. |
| Operating temperature | 0…+55 °C; indoor, temperature-controlled environment. |
| Ingress protection | IP20 (indoor). |
| Voltage range | −38.0…−58.5 V DC (nominal −48 V). |
| Approvals (published) | NEBS GR-63 / GR-1089 / GR-3108, CE/CB, FCC/ICES EMC classes. |
Compatible radios: Ericsson Radio / AIR portfolio; front-haul over CPRI/eCPRI.
Topologies: Star, daisy-chain, or ring; supports inter-BBU links (TN/IDL A–D) for coordination/aggregation.
Marketing / model name: RAN Processor 6651 / Baseband 6651.
Typical part number (PN): KDU 137 0093/11 (verify against unit nameplate on receipt).
Nameplate & revision — confirm KDU 137 0093/11, hardware rev, and ERS software baseline.
Optical ports — loopback/fiber-power tests on RI (12× SFP28) and TN/IDL (QSFP+/QSFP28/SFP28) per site optics.
Power feed — dual −48 V with fuse ratings per table (min 15 A, max 25 A).
Cooling — verify fan tray operation and airflow; confirm ambient temp within 0–55 °C.
Licenses & features — validate NR/LTE/M-IoT feature keys and required cell/carrier capacities.
Ericsson “RAN Compute Description — RAN Processor 6647/6651” (Uen 313/1551-LZA 701 6001/1) — functions; 12 CPRI/eCPRI ports; dimensions/weight; environmental; power ranges; interfaces (TN/IDL, RI, LMT, EA); install/maintenance.
RAN Processor 6651 Technical Specs (StudyLib, 2023-01-03) — mechanical 44×483×383 mm, 7.70 kg; IP20; line rates up to CPRI 24.3 G / eCPRI 25 G; interface table with 12× SFP28 RI and QSFP+/QSFP28/SFP28 transport.
Tessco product entry — confirms model name Baseband 6651 and PN KDU 137 0093/11.
Channel/briefs (PDF/retail listings) — positioning for high-capacity 4G/5G mid-/high-band sites and 25G front-haul to AIR/Radio.
