Nortel NT6Q21GA 2xGE/FX + 8x10/100BT L2 1G2 Interface Module

The Nortel NT6Q21GA (Part Number 130-PCA000026-E) is a high-performance Layer 2 Ethernet interface module designed for the Media Gateway 15000 (MG 15000) and multiservice switching platforms. This module provides a versatile combination of connectivity options, featuring two Gigabit Ethernet (GE/FX) ports via SFP slots and eight 10/100Base-TX Fast Ethernet ports. Engineered for carrier-grade environments, the 1G2 revision is optimized for increased backplane throughput, supporting the aggregation and transport of packet-based traffic over high-speed 1.2 Gbps switching fabrics.The hardware architecture supports advanced Layer 2 switching functionalities, including IEEE 802.1Q VLAN tagging, Quality of Service (QoS) prioritization, and sophisticated traffic policing mechanisms. It is designed to bridge local Ethernet-based subscriber traffic with core optical transport networks, ensuring low-latency packet forwarding and high data integrity. The NT6Q21GA incorporates integrated buffering to manage traffic bursts and features comprehensive diagnostic capabilities such as port-level statistics, link monitoring, and remote loopback testing. Built for mission-critical reliability, the module supports hot-swappable installation and can be configured in redundant mode to ensure continuous service availability. Its robust mechanical design and high-quality electrical components ensure compliance with stringent telecommunications standards for electromagnetic compatibility and thermal management in high-density central office deployments.