Huawei MCUD Overview
Huawei MCUD (Main Control Unit/Board) cards, primarily for their MA5608T OLTs, offer high-capacity, reliable control for Optical Line Terminals, featuring massive switching capacity (up to 512G in load sharing), integrated GE/10GE uplink ports, support for advanced QoS, ISSU for hitless upgrades, and essential functions like Layer 2/3 forwarding, IP/MPLS routing, and synchronization for broadband access and mobile backhaul.
Product Features
- High Switching Capacity: Supports large backplane capacity and significant switching performance (e.g., 256G active/standby, 512G load sharing).
- Integrated Uplinks: Includes multiple GE/10GE optical/electrical ports for high-density service aggregation and cascading without extra switches.
- Reliability & Redundancy: Offers Active/Standby or Load Sharing modes, ISSU (In-Service Software Upgrade) for zero downtime, and support for ONU dual-homing.
- Advanced Service Support: Handles IPTV, H-QoS (4-level QoS), traditional E1 services (via Native TDM/CESoP) for mobile backhaul, and supports IPv4/IPv6 routing.
- Synchronization: Provides precise clock synchronization (BITS, 1588v2, etc.) essential for mobile networks.
- Scalability: Supports a large number of subscribers, MAC addresses, and multicast channels.
Application Scenarios
Medium-Scale Suburban FTTH Network Control for Asian Operators
A regional telecom operator in Southeast Asia deployed Huawei MA5683T OLTs with MCUD units to build an FTTH network covering 60,000 suburban households. Each OLT was configured with 2 MCUD boards in 1+1 backup mode: the active board managed 10 service slots (GPBD/GPBH GPON boards) and aggregated user traffic via 2 GE uplinks to the backbone network. The standby MCUD synchronized data in real time, ensuring zero service interruption during active board maintenance. MCUD’s -40°C~+65°C design adapted to the operator’s unconditioned rural machine rooms, and unified remote O&M reduced on-site workload by 35%. The solution maintained stable operation during peak-hour 4K IPTV and video conferencing traffic, achieving 99.99% user service availability.
Downloadable resources
| Huawei MCUD Board Datasheet |
| Front panel |
|

|
| Specification |
| LAN switch |
24 x GE + 4 x 10GE |
| Switching capacity |
256 Gbit/s (active/standby mode) 512 Gbit/s (load sharing mode) |
| Bandwidth per slot |
10 Gbit/s (active/standby mode) 20 Gbit/s (load sharing mode) |
| MAC address table |
32768 |
| Access user |
2048 |
| Multicast user |
2048 |
| Configurable multicast channel |
4096 |
| Concurrent multicast channel |
2000 |
| IPv4 routing table |
5120 |
| IPv6 routing table |
5120 |
| Service port |
20480 |
| ARP table |
8192 |
| ACL rule |
896 |
| Maximum Frame Size |
2052 bytes. After the jumbo frame function is enabled, a maximum of 9216 bytes can be supported. |
| VRF (L3 VPN) |
Supported |
| Operating temperature |
-25°C to +65°C |
| Power consumption |
Static: 24 W Maximum: 26 W |
| Mechanical Specification |
| Dimensions(mm) |
233 (W) x 134 (D) x 34 (H) |
| Weight(kg) |
1 |
FAQ
Q: How many uplink ports does MCUD have, and what types are they?
A: It has 2 GE uplink ports, compatible with GE optical/electrical modules, enabling flexible connection to backbone networks or aggregation switches.
Q: Which Huawei OLT models are compatible with MCUD?
A: It is compatible with Huawei MA5608T, MA5683T, MA5600T, and other mainstream OLT devices, with plug-and-play integration.
Q: What temperature range does MCUD support, and where can it be deployed?
A: It operates in -25°C~+65°C, suitable for indoor machine rooms, outdoor cabinets, remote mountainous sites, and other harsh environments.
Q: How does MF-Telecom support the MCUD purchase?
A: We provide genuine Huawei hardware, 1-year warranty, global shipping (3-5 days).
Q: Does the MCUD board require matching specific modules for operation?
A: It typically works with standard SFP/SFP+ optical modules (depending on service requirements) and is compatible with Huawei’s standard control or service modules for flexible deployment.