Module / Infrastructure Function
| Main Category | System Modules, Boards & Subracks |
|---|
| Equipment Subtype | Power Distribution Unit |
|---|
| Platform / Host System | BBU Chassis / Support |
|---|
| Primary Function | Plug-in module, board, common/capacity unit, support unit or subrack component. |
|---|
Host & Equipment Compatibility
| Compatible Host / Equipment | Compatible BBU/Baseband: Huawei BBU3900/3910/5900 host matching the board generation. Compatible RRU/RRH/AAU: Connected RRU/AAU family depends on board capability, RAT and software. System modules: Host chassis, UMPT control, UBBP/WBBP/LBBP processing, UPEU/UPBA power/support. Cabinets/subracks: 19-inch rack or Huawei cabinet with suitable backplane and -48 V DC distribution. Antennas/AAU: Determined by connected radio. |
|---|
| Required Companion Equipment | Compatible BBU chassis/backplane, UMPT control, UBBP/WBBP/LBBP processing as applicable, power entry/support and cooling. |
|---|
| Related Radios / BBU | Connected RRU/AAU family depends on board capability, RAT and software |
|---|
| Compatible Cabinet / Subrack | 19-inch rack or Huawei cabinet with suitable backplane and -48 V DC distribution |
|---|
| Slot / Form Factor | 19-inch or vendor-specific form factor; verify exact chassis |
|---|
Interfaces & Power
| Interfaces & Connectors | RF: No RF connectors; Fronthaul/transport: no data/fronthaul interfaces; Power: -48 V DC input and multiple DC outputs using terminals/power connectors; Management/synchronization: alarm/monitoring through a service connector when provided; Other: grounding and power-distribution busbar |
|---|
| Transport / Optical Interfaces | No data/fronthaul interfaces |
|---|
| Power Source | -48 V DC input with multiple protected DC outputs |
|---|
| Power Connector Type | Screw terminal block / power OT-lug terminals for -48 V DC input and distributed outputs |
|---|
| Required Power / Internal Cable | Two-core power cable with crimped OT lugs or cord-end terminals, depending on the DCDU version |
|---|
| Power Consumption | Estimated maximum 250 W |
|---|
Installation & Thermal Role
| Cooling / Thermal Role | Host-chassis airflow; observe current and thermal derating |
|---|
| Installation Location | Inside host chassis/subrack |
|---|
| Mounting Method | Plug-in slot, backplane or internal rack position |
|---|
| Mounting Kit / Hardware | No separate external mounting kit; use host chassis guide rails, ejector handles, captive screws and filler panels |
|---|
| Known Mounting Kit PNs | No standalone mounting-kit PN; host chassis hardware applies |
|---|
| Fasteners / Fixings | Captive faceplate screws, board ejector handles, guide rails and slot filler panels. Do not improvise external mounting. |
|---|
| Cables & Connections | Host backplane connection; optical/Ethernet patch cord where the module exposes front ports; internal power through backplane; alarm/synchronization cable only when the specific module provides that interface |
|---|
| Dimensions | 86 × 442 × 310 mm |
|---|
| Weight | 5.0 kg net |
|---|
| Operating Temperature | -5 to +55 °C |
|---|
Identity & Verification
| Data / Compatibility Status | Mixed / revision check; Board/module installation confirmed at host-platform level |
|---|
| Battery / Shipping | No battery installed in the DCDU; The DCDU itself is not battery-powered cargo. Separately supplied Huawei DBU lithium batteries require their own transport declaration |
|---|
Structured equipment graph
Compatible Equipment & Engineering Relationships
1 relationship rows
Each relation retains its evidence level. Family-level, platform-level and engineering-selection relations are not displayed as exact part-number compatibility.
Powers equipment
BBU5900 Box; Huawei RRU/AAU families
Architecture-level Required in applicable site design
Target part number(s): 02311VFF; external radio PNs by site BOM
Interface / role: External -48 V DC distribution
Conditions: Current rating, breaker allocation and cable gauge must match