J9991A HPE 20-Port PoE+ LAN Expansion Module

HPE 20-Port PoE+ Gigabit Ethernet Expansion Module

The is a high-performance network expansion solution designed to enhance enterprise networking infrastructure. Featuring 20 Gigabit PoE+ ports and 4 multi-gigabit PoE+ uplink ports, this plug-in module delivers reliable wired connectivity, high-speed data transmission, and advanced network security. It is an ideal choice for businesses seeking scalable, efficient, and secure network expansion.

Manufacturer Information

• Brand: HPE
• Part Number: J9991A
• Product Type: Network Expansion Module

Network Performance

• 10Base-T Ethernet
• 100Base-TX Fast Ethernet
• 1000Base-T Gigabit Ethernet
• 2.5GBase-T Ethernet
• 5GBase-T Ethernet
• 10GBase-T Ethernet

Supported Data Link Protocols

• 10 Mbps LAN
• 100 Mbps LAN
• 1 Gigabit Ethernet
• 2.5 Gigabit Ethernet
• 5 Gigabit Ethernet
• 10 Gigabit Ethernet

PoE+ Benefits

• Simplified network deployment
• Reduced cabling costs
• Power delivery for IP phones, wireless access points, and surveillance cameras
• Improved installation flexibility
• Centralized power management

Physical Interfaces

• 20 x 1000Base-T Gigabit Ethernet PoE+ RJ-45 ports
• 4 x 1/2.5/5/10GBase-T Multi-Gigabit PoE+ RJ-45 ports

HPE J9991A 20-Ports POE+ LAN Expansion Module Overview

The HPE J9991A 20-Ports 10/100/1000Base-T PoE+ LAN Expansion Module is a high-performance networking solution designed to enhance enterprise-grade switches with additional port density and advanced Power over Ethernet Plus capabilities. This expansion module integrates seamlessly into compatible HPE switch chassis, offering twenty Gigabit Ethernet ports that support both data transmission and PoE+ functionality. By combining speed, scalability, and power delivery, it provides organizations with the flexibility to connect a wide range of devices including IP phones, wireless access points, surveillance cameras, and other PoE-enabled equipment.

Port Configuration and Speed

The module features twenty auto-sensing 10/100/1000Base-T ports, ensuring compatibility with legacy Fast Ethernet devices while delivering Gigabit speeds for modern applications. Each port is capable of negotiating the optimal speed based on connected devices, which allows seamless integration across diverse network environments. The Gigabit capability ensures that bandwidth-intensive applications such as video conferencing, cloud computing, and large file transfers operate without bottlenecks.

PoE+ Power Delivery

Power over Ethernet Plus (PoE+) is a critical feature of the HPE J9991A expansion module. Each port can deliver up to 30 watts of power, enabling the connection of high-powered devices such as pan-tilt-zoom surveillance cameras and advanced wireless access points. This eliminates the need for separate power supplies, reducing cabling complexity and installation costs. The module supports IEEE 802.3at standards, ensuring interoperability with a wide range of PoE-enabled devices.

Integration with HPE Switches

Designed specifically for HPE switch chassis, the J9991A expansion module integrates seamlessly into modular switch platforms. This allows network administrators to scale port density as needed without replacing the entire switch. The module is engineered for reliability and performance, ensuring that enterprise networks maintain consistent uptime and throughput even under heavy workloads.

Enterprise Connectivity

In corporate environments, the HPE J9991A expansion module provides the backbone for connecting workstations, VoIP phones, and wireless access points. Its Gigabit speed ensures that employees experience fast and reliable connectivity, while PoE+ capability simplifies deployment of powered devices across office floors. This makes it an ideal solution for businesses seeking to expand their network infrastructure without incurring excessive costs.

Campus and Educational Institutions

Educational institutions benefit from the scalability and power delivery of the J9991A module. Classrooms equipped with interactive whiteboards, IP cameras, and wireless access points can be powered directly through the module’s ports. The ability to deliver both data and power over a single cable reduces installation complexity and supports the growing demand for digital learning environments.

Healthcare and Security Systems

Hospitals and healthcare facilities rely on secure and reliable networks to support patient monitoring systems, IP cameras, and communication devices. The PoE+ capability of the J9991A module ensures that critical devices remain powered and connected. Similarly, security systems benefit from the module’s ability to power surveillance cameras and access control systems, providing comprehensive coverage without additional power infrastructure.

High Bandwidth Support

With Gigabit Ethernet across all twenty ports, the module supports high-bandwidth applications such as video streaming, cloud services, and large-scale data transfers. This ensures that organizations can meet the demands of modern digital workflows without experiencing latency or congestion.

Energy Efficiency

The HPE J9991A module is designed with energy efficiency in mind. It supports intelligent power management features that allocate PoE+ power only when required, reducing unnecessary energy consumption. This contributes to lower operational costs and aligns with sustainability goals for environmentally conscious organizations.

Reliability and Uptime

Enterprise networks demand consistent uptime, and the J9991A module is engineered to deliver. With robust hardware design and integration into HPE’s proven switch platforms, the module ensures reliable performance even under demanding workloads. This reliability is critical for organizations where downtime can result in significant productivity or financial losses.

Modular Expansion

One of the key advantages of the HPE J9991A module is its modular design. Organizations can expand their network capacity incrementally by adding modules as needed. This scalability allows businesses to align network growth with operational needs, avoiding unnecessary upfront investment in oversized infrastructure.

Support for Emerging Technologies

As organizations adopt emerging technologies such as IoT devices, smart building systems, and advanced collaboration tools, the demand for PoE+ and Gigabit connectivity continues to grow. The J9991A module provides the necessary infrastructure to support these technologies, ensuring that networks remain future-ready.

Deployment Scenarios

In office environments, the module simplifies deployment of VoIP phones, wireless access points, and IP cameras. By delivering both power and data over a single cable, it reduces installation costs and enhances flexibility in device placement. This is particularly valuable in open office layouts where devices may need to be relocated frequently.

Retail Stores

Retail environments benefit from the module’s ability to power point-of-sale systems, digital signage, and surveillance cameras. The Gigabit connectivity ensures that transaction data and video feeds are transmitted reliably, supporting both customer experience and security requirements.

Industrial Facilities

In industrial settings, the module supports ruggedized IP cameras, sensors, and communication devices. Its PoE+ capability ensures that devices remain powered even in challenging environments, while Gigabit connectivity supports real-time monitoring and control systems.

Security Integration

The HPE J9991A module supports advanced security features when integrated with HPE switch platforms. These include access control lists, port security, and VLAN segmentation, which help protect networks from unauthorized access and potential threats. This makes the module suitable for organizations with stringent security requirements.

Quality of Service (QoS)

Quality of Service features ensure that critical applications such as voice and video receive priority bandwidth. The module supports QoS configurations that optimize traffic flow, reducing latency and ensuring consistent performance for time-sensitive applications.

IEEE Standards Compliance

The module complies with IEEE 802.3at PoE+ standards, ensuring interoperability with a wide range of devices. It also supports IEEE 802.3ab Gigabit Ethernet standards, guaranteeing compatibility with modern networking equipment. This standards compliance provides assurance that the module will integrate seamlessly into diverse network environments.

Interoperability with Devices

From IP phones to wireless access points, the J9991A module supports a broad spectrum of devices. Its auto-sensing ports detect and adjust to connected devices, ensuring optimal performance without manual configuration. This interoperability simplifies deployment and reduces the risk of compatibility issues.