Overview

Welcome to our comprehensive technical FAQ for the Nokia 7360 ISAM (Intelligent Services Access Manager) OLT (Optical Line Terminal). This guide is designed for network architects, telecom engineers, and procurement specialists seeking definitive answers on integrating third-party ONUs, diagnosing optical signal issues, and understanding the full capabilities of the 7360 FX series. We address both pre-sales sizing questions and post-sales troubleshooting scenarios, leveraging the platform's RSSI diagnostic features to ensure network stability .

Frequently Asked Questions

Q1: Can a Nokia 7360 ISAM OLT read the optical power of an OEM (third-party) ONU?

Yes, the Nokia 7360 ISAM OLT can read the optical power of an OEM ONU via the Received Signal Strength Indicator (RSSI) feature. This diagnostic tool allows Network Operations Centers (NOCs) to monitor the exact optical power received from any connected ONT in real-time, regardless of whether it is a Nokia-branded or third-party unit . By leveraging RSSI, operators can proactively detect macro-bends, degrading splices, or failing optics before they result in customer outages, significantly reducing truck rolls and MTTR. The OLT polls the upstream optical parameters; as long as the OEM ONU adheres to the relevant ITU-T GPON or XGS-PON standards, these metrics are accessible via the standard management interfaces .

Q2: What is the maximum switching capacity and throughput of the Nokia 7360 ISAM FX-8?

The Nokia 7360 ISAM FX-8 chassis supports a non-blocking switching capacity of over 200 Gbps per slot, with an aggregate backplane capacity exceeding 1.6 Tbps. The exact maximum throughput depends on the line cards installed. For example, a fully populated FX-8 with 16-port GPON cards (like the FGLT-B) delivers a total downlink rate of 40 Gbps (16x2.488 Gbps) per card and an uplink rate of 20 Gbps . This line-rate performance is driven by a high-capacity, dual-star backplane architecture that connects every service slot directly to the active and standby network controllers . This design ensures zero packet loss and minimal latency under full load, which is critical for delivering converged services like 4K IPTV and high-speed internet .

Q3: What is the difference between the Nokia 7360 ISAM FX-4, FX-8, and FX-16 OLT chassis?

The primary difference lies in the number of line card slots, which scales the maximum subscriber capacity. The FX-4 has 4 slots, the FX-8 has 8 slots, and the FX-16 has 16 slots, fitting into 8, 11, and 14 rack units (RU) respectively . With 16-port GPON cards and a 1:64 split ratio, they serve approximately 4,096, 8,192, and 16,384 subscribers each. While the FX-8 retains a non-blocking backplane with 2 x 100 Gb/s per slot, the larger chassis offer higher density for central offices .

Q4: Does the Nokia 7360 ISAM OLT support third-party SFP/SFP+ optical transceivers?

While the Nokia 7360 ISAM supports industry-standard SFP/SFP+ form factors, using Nokia-certified optics is strongly recommended for guaranteed performance and Digital Diagnostic Monitoring (DDM) access. The platform requires transceivers that adhere to specific Class B+ or Class C+ specifications . For example, a 10GBASE-LR SFP+ module (1310nm, 10km) is commonly used on NT cards . However, for full optical link budgets and compatibility with advanced features like RSSI and DDM, certified modules ensure you can monitor critical parameters like bias current and temperature without errors .

Q5: How do I configure basic VLANs and QoS on the 7360 ISAM FX via CLI?

Basic CLI configuration involves creating service profiles, defining VLANs, and applying Dynamic Bandwidth Allocation (DBA) profiles to ONUs. Network engineers typically start by connecting via console or SSH and entering configuration mode. Key steps include setting up VLANs (e.g., for Internet, VoIP, and IPTV), applying Q-in-Q (VLAN stacking) to aggregate traffic, and assigning T-CONT (Transmission Container) types to ensure strict Quality of Service . The specific commands may vary by firmware, but the core logic involves mapping traffic to different service queues.

Q6: What is the maximum optical link budget and reach of the 7360 ISAM OLT with Class C+ optics?

With Class C+ optics, the Nokia 7360 ISAM OLT provides a robust optical link budget of up to 32 dB, supporting physical reaches of up to 40 km or high split ratios like 1:128. The typical transmit power ranges from +3.0 dBm to +7.0 dBm, with a receiver sensitivity as low as -32.0 dBm . In practical deployments, accounting for fiber attenuation and splitter loss, this allows reliable connectivity across distances of 30 to 60 km, making it suitable for both rural and suburban deployments .

Q7: How does the 7360 ISAM FX handle power supply or fan tray redundancy?

The Nokia 7360 ISAM FX supports fully redundant dual power feeds and hot-swappable, intelligent fan trays to ensure carrier-grade reliability. The chassis is designed for -48/60V DC telecom power, with Branch A and Branch B inputs that guarantee isolated PSU failures do not interrupt service . Additionally, intelligent fan trays with over-temperature sensors and dust filters manage thermal loads, capable of operating in temperatures ranging from -40°C to +65°C .

Q8: What protocols does the Nokia 7360 ISAM support for Layer 3 routing and multicasting?

The Nokia 7360 ISAM FX supports advanced Layer 3 protocols including OSPF, BGP, and VRRP for routing redundancy, alongside IGMP snooping for efficient multicast video delivery. For IPTV and video services, it leverages IGMP v2/v3 snooping and Multicast VLAN Registration (MVR) to replicate multicast streams at the hardware level . This prevents network backbone congestion by ensuring video streams are only sent to subscribers who request them .