bNSG is a broadcast edge QAM system based on the modular Network Services Gateway™ (NSG) 9000 hardware platform. This system is designed as a highly integrated digital video gateway that multiplexes broadcast content transmission streams over IP networks. The NSG 9000 platform is engineered for scalability, with QAM density on each device capable of growing from 1 QAM to 54 QAM. In addition to providing unique output density, bNSG is also designed to be robust and highly available, supporting MPEG processing and scrambling within a single device.
The bNSG 9000 is housed in a modular 2RU chassis, capable of simultaneously performing PID filtering, multiplexing, scrambling, QAM modulation, and RF upconversion on up to 54 MPEG transport streams; bNSG receives digital MPEG inputs through its Gigabit Ethernet port and sends them to different QAM and upconverters to create output transport streams for QAM RF output signals. The bNSG 9000 is also designed to accommodate real-time scrambling using different encryption methods, while supporting future MPEG processing applications.
To maximize scalability and flexibility, the NSG 9000 platform is designed as a fully modular system, featuring a passive backplane. All processing and functional modules are hot-swappable, and the chassis includes 9 QAM RF module slots; each module has 2 QAM RF output ports, with each port providing 3 adjacent frequency QAM RF output channels (Annex B/C, 4 channels). The system can be configured with two DC or AC power supply modules, which serve as backups for each other.
The processing module includes 3 1000BaseT ports and 3 SFP optical module slots, as well as 2 10/100BaseT ports for management and CAS. An onboard ASI monitoring port is available for monitoring internal transport streams through an MPEG analyzer.
For ease of operation, both the bNSG 9000 QAM RF modules and power supply modules are designed to be hot-swappable, allowing for smooth upgrades to the system without interrupting service. The removable front panel of the bNSG 9000 device unit allows for field replacement.
Management
The bNSG features a local control panel with an LCD display and buttons for accessing device information and performing basic configuration.
The bNSG 9000 can also be fully monitored, controlled, and managed for statistics and alarms through Harmonic's NMX Digital Business Management System. Through NMX, operators can create strategies such as low-latency 1:1 automatic redundancy backup and socket redundancy backup.