Huawei SCUN Overview
The Huawei SCUN (Super Control Unit) board is the central brain for Huawei's MA5600T/MA5680T/MA5683T OLTs, handling system control, service switching, and management for integrated access (GPON, P2P, xDSL), featuring high switching capacity (480G/960G), active/standby or load-sharing modes for redundancy, multiple GE/10GE uplink ports, management interfaces (CON, ETH, ESC), and support for advanced functions like 1588v2 timing and ISSU for seamless upgrades, ensuring efficient and resilient network operations.
Product Features
- High Performance: Offers 480 Gbit/s switching capacity in active/standby mode and 960 Gbit/s in load-sharing mode.
- Redundancy: Supports active/standby and load-sharing (with a standby SCUN) for high availability.
- Versatile Uplinks: Provides multiple GE/10GE ports for connecting to the core network.
- Management Interfaces: Includes CON (RS-232), ETH (Ethernet), and ESC (RS-485) ports for local/remote management and environmental monitoring.
- Advanced Protocols: Implements simple routing protocols and supports 1588v2 timing (with daughterboard) for accurate synchronization.
- Seamless Upgrades: Supports ISSU (In-Service Software Upgrade) to minimize service interruption during updates.
Application Scenarios
Medium-Scale Urban FTTH Network Control for European Regional Operators
A regional telecom operator in Southern Europe deployed Huawei MA5683T OLTs with SCUN units to build an FTTH network covering 50,000 urban households. Each OLT was configured with 2 SCUN boards in 1+1 backup mode: the active board managed 8 service slots (GPBD/GPBH GPON boards) and aggregated user traffic via 2 GE uplinks to the backbone network. The standby SCUN synchronized data in real time, ensuring zero service interruption during active board maintenance. SCUN’s -40°C~+65°C design adapted to the operator’s unconditioned mountainous machine rooms, and unified remote O&M reduced on-site workload by 40%. The solution maintained stable operation during peak-hour 4K IPTV and video conferencing traffic, achieving 99.99% user service availability.
Downloadable resources
| Huawei SCUN Board Datasheet |
| LAN switch |
24 x 10GE + 4 x GE |
| Switching capacity |
480 Gbit/s (active/standby mode)
960 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 |
8192 |
| Multicast user |
8192 |
| Configurable multicast channel |
4096 |
| Concurrent multicast channel |
2000 |
| IPv4 routing table |
5120 |
| IPv6 routing table |
5120 |
| Service port |
32768 |
| ARP table |
8192 |
| ACL rule |
1024 |
| Maximum Frame Size |
2052 bytes. After 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: 30
Maximum: 50 W |
| Mechanical Specification |
| Dimensions(mm) |
25.40 (W)x 237.00 (D) x 395.40(H) |
| Weight(kg) |
0.5 |
FAQ
Q: How does MF-Telecom support the GPBH purchase?
A: We provide genuine Huawei hardware, 1-year warranty, global shipping (3-5 days).
Q: How many uplink ports does SCUN have,?
A: It has 4 GE uplink ports, compatible with GE optical/electrical modules.
Q: Which Huawei OLT models are compatible with SCUN?
A: It is compatible with Huawei MA5608T, MA5683T, MA5600T, and other mainstream OLT devices, with plug-and-play integration.
Q: What temperature range does SCUN 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: What is the Huawei SCUN card?
A: It is a primary main control card specifically designed for Huawei MA5680T and MA5683T OLTs, integrating core management functions and uplink capabilities.
