Huawei UMPTg3 — Universal Main Processing & Transmission Board (for BBU3900/BBU3910/BBU5900/BBU5900A)

1) Product role

UMPTg3 is the main control / switching / transmission board in Huawei DBS/BBU systems. It provides system control, timing/clock distribution, O&M, and packet/TDM transport interfaces toward the backhaul, while interfacing with baseband boards (UBBP) and RRUs via the BBU backplane/CPRI. It is used across BBU3900/3910/5900 families. Infinity Supply

2) Compatibility & model evidence

• Applicable BBUs: BBU3910, BBU5900, BBU5900A (and used in BBU3900 deployments by channel evidence). LonRise Equipment Co. Ltd.

• Observed commercial / part codes:

• WD2DUMPTG300 (model code), PN 03057253 (ITPrice listing). itprice.com

• Further market evidence lists PN 03057253 and commercial code WD2DUMPTg3 / 03050GJN on UMPTg3 units. Alibaba+2Alibaba+2

Note: Huawei uses multiple orderable PNs for the same functional board across releases/markets. Always verify against the nameplate.

3) Interfaces (front-panel / functionality)

Exact port population can vary by sub-version, but the UMPTg3 family consistently exposes electrical and optical Ethernet for transport/O&M; some versions also expose legacy E1/STM-1.

• Ethernet transport/O&M: 2 × electrical FE/GE + 2 × optical GE/10GE/“XGE/YGE” (SFP/SFP+) — per Huawei ITPrice entry for WD2DUMPTG300 (03058738). itprice.com

• Legacy transport (variant-dependent): Certain UMPT “TNHM…” variants provide E1/FE/STM-1 mixes (for hybrid packet/TDM sites). Use project BOM to confirm. LonRise Equipment Co. Ltd.

• System/control: Clock/timing, O&M (maintenance) and switching functions as the main processing board in the BBU chassis. Infinity Supply

4) RAT & software context (planning)

• UMPT boards carry the RAT control plane and transport resources that are shared among LTE/UMTS/GSM (and, on later issues, NR/eCPRI preparation depending on BBU generation and software). Exact feature availability is software/license dependent per Huawei BBU5900 Hardware Description. Infinity Supply

5) Electrical, mechanical & power

• Typical power (UMPTg3): ≈ 55 W (ITPrice listing for WD2DUMPTG300 / 03058738). itprice.com

• Board dimensions (net): ≈ 314 × 155 × 20 mm (same listing). itprice.com

• Chassis power input: Provided by the BBU power module (−48 V DC range); the UMPTg3 itself plugs into the BBU backplane. (Platform reference.) Infinity Supply

6) Typical deployment & topology

• Works with UBBP baseband boards and RRUs over CPRI through the BBU (e.g., BBU5900).

• Supports star/chain/ring front-haul topologies at the system level; UMPT handles the site’s transport uplinks (GE/10GE) to aggregation/backhaul. Infinity Supply

7) Incoming inspection (recommended)

1. Verify PN & label: check model (UMPTg3), commercial code (WD2DUMPTG3xx), and PN (e.g., 03058738 / 03058543) against the PO. itprice.com+1

2. Port mapping: confirm required GE/10GE SFP/SFP+ optics; if the site needs E1/STM-1, verify your exact sub-version supports it. itprice.com+1

3. Software baseline: ensure the UMPTg3 firmware/licensing matches your SRAN/DBS version and RAT mix. Infinity Supply

Key open sources (for verification)

• Huawei BBU5900 – Hardware Description (V100R013C10): UMPT role, RAT sharing, transmission spec tables. Infinity Supply

• ITPrice — WD2DUMPTG300 (PN 03058738): interface mix (2× FE/GE electrical + 2× optical GE/10GE), dimensions 314×155×20 mm, typical power ~55 W. itprice.com

• Reseller evidence (opticaltransceiver-module / Alibaba / 1COM partners): UMPTg3 applicability to BBU3910/5900/5900A, part numbers 03058738 / 03058543, and commercial code WD2DUMPTg3 / 03050GJN. ztndtrade.com+3LonRise Equipment Co. Ltd.+3Alibaba+3

Notes

• Huawei’s UMPT family includes multiple lettered generations (e/d/g, etc.) and sub-versions. The panel ports and transport features can differ slightly; always match to your exact PN and software baseline. Infinity Supply