The GC8B C+ is an 8-port GPON OLT interface board, which can be used in the Fiberhome AN5516 serie OLT: AN5516-04, AN5516-06, AN5116-06B/AN5516-01. GCOB card can works with the optical network terminal (ONT) to provide GPON access service. Also, GC8B card can work with some optical network unit (ONU) or MxU to provide GE/FE Ethernet service. This GC8B board comes with C+ class SFP, but you can choose with Gpon SFP B+ or C++. If GC8B card come with B+, supports ONT/ONU access of up to 512 subscribers. if GC8B card comes with C+/C++, supports ONT/ONU access of up to 1024 subscribers. The GC8B card has two version: R1B and R1C. GC8B R1B is the mainstream version of the market.
Application Scenarios
1. Suburban Multi-Service Deployment in Italy
An Italian ISP integrated Fiberhome GC8B Boards into AN5516-06 OLTs for suburban communities near Milan. The 8-port GPON card’s 1:128 splitting ratio efficiently served 1,000+ households, delivering gigabit data, VoIP, and 4K IPTV. Equipped with C++ SFP modules, it supported 20km transmission, covering scattered neighborhoods. Its H-QoS feature prioritized traffic, ensuring smooth streaming and video calls, while 30% lower power consumption than industry averages reduced operational costs. Compliance with ITU-T G.984.3 standards ensured interoperability with existing ONUs, making it a cost-effective upgrade for legacy networks.
2. Rural & Small Business Connectivity in Kenya
A Kenyan telecom deployed GC8B Boards in AN5516-04 OLTs to bridge rural digital gaps in Nairobi’s outskirts. The board’s compatibility with B+/C+/C++ modules adapted to 10–20km coverage needs, connecting villages and small enterprises. With 1024 T-CONTs per port, it allocated bandwidth for business cloud applications and residential browsing. Its compact design fit small outdoor cabinets, and -38.4V to -72V DC power support worked with local solar-powered systems. Dual-board redundancy minimized downtime in remote areas, enabling online education and e-commerce for underserved communities.
Fiberhome GC8B Board Datasheet | ||
| Service ports | ||
| GPON Port | 8-GPON Port | |
| GPON SFP Module Specification | ||
| Type | C+ Module | |
| Interface type | SC/PC | |
| Transmitter | Signal nominal rate | 2.5 Gbit/s ± 100 ppm |
| Wavelength range | 1480 nm to 1500 nm | |
| Mean launched power (maximum) | +7 dBm | |
| Mean launched power (minimum) | +3 dBm | |
| Average launched power of OFF transmitter | -39 dBm | |
| Extinction ratio (minimum) | +9 dB | |
| Receiver | Signal nominal rate | 1.25 Gbit/s ± 100 ppm |
| Wavelength range | 1260 nm to 1360 nm | |
| Maximum receiving sensitivity | -30 dBm | |
| Minimum overload optical power | -8 dBm | |
| Power Consumption | ≤ 50W | |
| MTBF (hour) | 146606.07 | |
| MTBF (year) | 16.74 | |
| Failure Rate (ppm) | 6.821 | |
