Product Short Description

Product Overview

Enterprise-grade stackable Layer 2 full gigabit managed switch, designed for medium-to-large enterprise wiring closets, industrial control system central communication cabinets, factory DCS network core access layer deployment. It provides 48 gigabit Ethernet access ports plus 4 dual-personality uplink ports supporting copper gigabit or fiber SFP mini-GBIC transceivers, with complete network security, traffic prioritization and stackable expansion capabilities.
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HP PROCURVE J9022A

Description

Basic Hardware Parameters

  • Processor: MIPS BCM5836 264MHz dedicated network processing chip
  • System Memory: 64MB DRAM operating memory
  • Packet Buffer Memory: 1.5MB shared packet cache buffer
  • MAC Address Table Capacity: 8000 independent MAC address entries, configurable address aging timer
  • Switching Architecture: Store-and-forward packet switching mode
  • Backplane Bandwidth: 96 Gbps full non-blocking switching capacity
  • Maximum Packet Forwarding Rate: 71.4 Mpps gigabit packet forwarding performance

Port Configuration

  • 44 x Fixed 10/100/1000Base-T RJ45 Gigabit Access Ports
  • 4 x Dual-Personality Uplink Composite Ports: Each port supports either 10/100/1000Base-T copper RJ45 or mini-GBIC SFP fiber gigabit transceiver module
  • 1 x RJ45 Serial Console Out-of-Band Management Port
  • Support External Redundant Power Supply (RPS) backup power interface

Electrical & Environmental Specifications

  • Input Power Supply: Internal built-in AC power supply, 100~240VAC universal mains input, 50/60Hz
  • Maximum Power Consumption: 160VA
  • Operating Ambient Temperature: 0°C ~ +45°C
  • Storage Temperature: -40°C ~ +70°C
  • Operating Humidity: 10% ~ 90% non-condensing
  • Installation Standard: 19-inch standard industrial rack mount chassis, 1U rack height

8.4 Complete Network Protocol & Function Features

Standard Supported IEEE Network Protocols

IEEE 802.3 (10BASE-T), IEEE 802.3u (100BASE-TX), IEEE 802.3ab (1000BASE-T), IEEE 802.3x full-duplex flow control, IEEE 802.1Q VLAN tagging, IEEE 802.1D spanning tree protocol, IEEE 802.1w rapid spanning tree, IEEE 802.1s multiple spanning tree, IEEE 802.3ad static LACP link aggregation, IEEE 802.1X port-based network access control authentication

Core Functional Features

  1. Auto MDI/MDI-X automatic port cable crossover detection on all RJ45 ports, eliminating cross-over cable requirement
  2. Jumbo frame support up to 9000-byte large data frames for industrial control large packet transmission optimization
  3. Advanced QoS traffic prioritization: 8 hardware-based 802.1p Class of Service priority queues per port, strict priority and weighted round-robin scheduling modes for real-time industrial control data priority forwarding
  4. Comprehensive network security functions: Port MAC address locking, static MAC address binding, port isolation, 802.1X user authentication, broadcast storm suppression, illegal DHCP server filtering
  5. Stackable expansion capability: Multiple J9022A switches can be stacked together via dedicated stacking cables to realize unified single-device management of hundreds of gigabit ports
  6. Multiple multi-method management interfaces: Local serial console CLI command line, web browser graphical web management, remote Telnet, SSH encrypted remote management, compatible HP ProCurve Manager centralized network management platform software
  7. Complete fault diagnosis indicators: Independent LED status indicators for each port link/activity, power supply fault, fan operation, redundant power supply status, dedicated test button for rapid network fault troubleshooting

8.5 Working Principle

Adopts store-and-forward gigabit packet switching architecture: After Ethernet data packets enter the RJ45 port, the switch chip first fully receives and caches the complete data packet into the internal packet buffer, verifies packet CRC checksum to filter damaged error packets, queries the local MAC address table to match target port forwarding rules, then forwards intact valid packets to the corresponding destination port through the high-speed backplane bus, realizing isolated independent gigabit data transmission between different network ports without broadcast data interference across ports.

8.6 Material Composition & Structural Characteristics

  • Chassis Shell: Cold-rolled steel metal rack mount chassis, black anti-static matte paint coating, anti-electromagnetic interference shielding performance
  • Port Interface Panel: High-strength plastic front panel with integrated LED status indicator light circuit board, metal RJ45 port shielding shells
  • Internal Circuit Board: Multi-layer high-temperature resistant FR4 gigabit switching mainboard, industrial grade stable electronic components
  • Cooling System: Built-in silent temperature-controlled axial cooling fans with fan fault alarm monitoring circuit
  • Mounting Accessories: Complete set of 19-inch rack mounting brackets, fixed screws, rubber anti-slip foot pads for desktop temporary placement

8.7 Application Scenarios

  1. Medium & large enterprise office building wiring closet core access layer network switching equipment
  2. Industrial automation DCS distributed control system factory workshop central control room gigabit communication switch, connecting PLC, vibration monitoring modules, industrial touch screens and industrial computers
  3. Power plant, petrochemical plant, metallurgical factory industrial control dedicated isolated safety network switch
  4. Campus education network classroom building access layer gigabit switching equipment
  5. Hospital medical equipment dedicated local area network centralized data switching platform

8.8 Installation Requirements

  1. Install the switch into standard 19-inch 1U rack cabinet via matching metal mounting brackets; fix all mounting screws tightly to prevent equipment vibration loosening during long-term operation
  2. Ensure unobstructed ventilation space at the left, right and rear sides of the switch chassis; reserve minimum 10cm ventilation gap between adjacent rack equipment to avoid heat accumulation overheating
  3. Connect standard three-core grounded AC power supply cable to the built-in power supply socket; reliable chassis grounding is mandatory to eliminate static electricity and electromagnetic interference
  4. Select matched CAT5e or CAT6 shielded gigabit twisted-pair copper cables for RJ45 port connection; for long-distance inter-device communication, install compatible SFP fiber mini-GBIC transceivers into dual-personality uplink ports with single-mode/multi-mode fiber optical cables
  5. Complete basic switch IP address, VLAN division, user authentication and stack configuration via serial console cable before connecting to the formal production network

8.9 Usage Precautions

  1. Strictly prohibit blocking the chassis cooling fan air intake and exhaust vents; poor heat dissipation will cause the switch chip to overheat, leading to network packet loss, port drop-off and permanent hardware burnout
  2. Do not install the switch in environments with high humidity condensed water, flammable dust, corrosive chemical gas and direct sunlight long-term exposure
  3. Use only original matching external redundant power supply modules if redundant backup power is required; non-original power supplies will cause unstable voltage output and equipment damage
  4. Regularly inspect cooling fan operation status via front panel fan fault LED indicator; replace faulty cooling fans promptly to avoid equipment overheating shutdown
  5. Configure reasonable VLAN isolation for industrial control network deployment; strictly separate industrial control equipment communication ports and office computer network ports to prevent office network virus broadcast packets from interfering with industrial control safe operation

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