Technical specifications
SMXA A31 10G Uplink & Main Control Board (for ZXA10 C320 OLT)
Product Model: SMXA (A31)
Product Type: Integrated Main Control + 10G Uplink Board
Compatible Platform: ZXA10 C320 Compact OLT Chassis
1. Product Overview
The SMXA A31 is a high-performance, integrated main control and 10G uplink board designed exclusively for the ZXA10 C320 2U compact optical line terminal (OLT). It combines system management, centralized control, high-speed switching, and 10GE/GE uplink connectivity in a single slot. As the core processing unit of the C320 OLT, it enables stable operation, high-bandwidth uplink, and full-service support for FTTH, FTTB, and enterprise access networks.

2. Key Specifications
Basic Parameters
- Switching Capacity: 128Gbps full-duplex
- MAC Address Table: 32K entries
- Slots: Dedicated control slot (single-slot width)
- Hot-Swappable: Yes (in-service replacement)
- Power Consumption:
- Static: 22W
- Typical: 27W
- Max: 30W
- Dimensions (W×H×D): 200.25 × 37 × 225 mm
- Weight: Approx. 0.8 kg
- MTBF: >100,000 hours
Uplink Interfaces
- 1 × 10GE Uplink Port: SFP+ socket (supports 10GBASE-R/10GBASE-LR)
- 1 × GE Uplink Port: SFP socket (100/1000BASE-X)
- 1 × GE Electrical Port: RJ45 (10/100/1000BASE-T)
- Console Port: RJ45 (RS-232 serial)
- Debug/Management: 1 × RJ45 COM/TST port
LED Indicators
- RUN (Green): Slow blink = normal; Solid = self-test pass; Off = fault
- ALM (Red): On = hardware fault; Blink = abnormal status
- PWR (Green): Power input normal
- LINK/ACT (Yellow): Port link/activity status
Environmental Specifications
- Operating Temperature: -40°C to +65°C
- Storage Temperature: -40°C to +70°C
- Humidity: 5%–95% (non-condensing)
- Altitude: Up to 4,000 m
- EMI/EMC: Complies with telecom EMC standards
Protection & Reliability
- Over-voltage / under-voltage protection
- Over-current & short-circuit protection
- Surge/lightning protection (±6kV)
- Reverse polarity protection
- Support 1+1 main control redundancy (with second SMXA A31)
- Uplink protection: LACP, UAPS, STP, ERPS (G.8032)
Management & Protocols
- Management: SNMP v1/v2c/v3, CLI (Telnet/SSH), Web GUI, EMS/NMS
- Firmware: In-service remote upgrade
- Protocols: IPv4/IPv6, QoS, ACL, VLAN, IGMP, DHCP, AAA
- Security: ONU authentication, port isolation, packet filtering, broadcast suppression
3. Core Features
- Integrated Control & Uplink: Combines main control, switching, and 10G uplink in one board.
- High-Speed 10G Uplink: 1 × 10GE SFP+ port for high-bandwidth aggregation.
- Compact & Efficient: Fits C320 2U chassis, low power (max 30W).
- Carrier-Grade Stability: Full protections, redundant control support, 99.999% uptime.
- Full-Service Support: GPON/EPON/XG-PON1/P2P, VoIP, IPTV, HSI, mobile backhaul.
- Flexible Uplink: 10GE optical + GE optical + GE electrical for diverse uplink options.
- Hot-Swappable: Maintenance without OLT shutdown.
- Advanced QoS: Hierarchical scheduling, traffic shaping, priority mapping.
- High Compatibility: Works with all C300/C320 service boards (GTGH, ETGH, etc.).
4. Typical Applications
- ZXA10 C320 OLT main control & uplink
- FTTH/FTTB triple-play broadband networks
- Enterprise/campus optical access
- Mobile backhaul (5G/4G)
- Small/medium CO fiber access
- High-density ONU aggregation (up to 4096 ONUs)