The ISCOM5508-GP is a compact GPON OLT with enhanced functionality that complies with ITU-T G.984 GPON standard. The device can provide up to 8 GPON ports, 10 x 1GbE and 2 x 10GbE uplink interfaces, also supporting 1 CATV input and 4 triple-lambda outputs on WDFA4 expansion card. The full modular design of the ISCOM5508-GP enables maximum flexibility in deploying, maintaining and expanding services while maintaining a low total cost of ownership. Designed for small ISPs and cable operators for residential fiber broadband access, ISCOM5508-GP offers a broad range of features delivering triple-play services, simplifying network management, and providing a high network reliability. The security is assured by implementations of RADIUS and/or TACACS+ authentications, while maximum network uptime is guaranteed by ring architecture, real-time monitoring and hot-swappable redundant power supplies.