Detailed Specifications
HPE J9311A 3500-48G-PoE+ yl Switch
Overview
The HPE J9311A is a managed access-layer switch intended for enterprise network environments that require 48 10/100/1000 Base-T PoE+ ports with the flexibility to add 10-Gigabit uplink modules for future growth. It supports up to 4 10 GbE ports via the optional yl module slot, enabling migration toward higher-speed uplinks while maintaining dense Gigabit edge connectivity. Designed to fit in a 1 RU rack-mount footprint, the switch is well suited for wiring closets, branch offices or campus floor access layers. It integrates advanced Layer 2-plus features including static routing, dual-personality ports, PoE+ support and expansion slot capability, delivering a forward-looking access platform that protects investments in client-side Gigabit connectivity but allows uplink scaling. Management is via CLI, web GUI, SNMP and RMON, with support for PoE budget management, intelligent power control and advanced QoS and security features.
Key Features
48 × 10/100/1000Base-T RJ-45 ports with PoE+ support
4 dual-personality ports usable as RJ-45 or mini-GBIC uplinks
Single yl module slot supporting up to 4 10 GbE uplink ports
Switching capacity up to 149.8 Gb/s with 10-Gb uplink growth path
Advanced edge-routing support, intelligent PoE management and full-featured layer 2-4 services
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | J9311A |
| Product Type | 3500-48G-PoE+ yl Managed Switch |
| Access Ports | 48 × 10/100/1000 Base-T RJ-45 (autosensing) |
| Dual-Personality Ports | 4 ports (RJ-45 or mini-GBIC) |
| Uplink/Module Slot | 1 × yl module slot supporting up to 4 10 GbE ports |
| Switching Capacity | 149.8 Gb/s |
| Throughput (64-byte packets) | Up to 111.5 Mpps |
| Form Factor (H × W × D) | 1.73 in × 17.44 in × 16.93 in |
| Weight | 15.54 lbs |
| Max Power Consumption | Up to 638 W |
| PoE Power Budget | 398 W |
| Operating Temperature | 0 °C to 55 °C (32 °F to 131 °F) |
| Non-Operating Temperature | -40 °C to 70 °C |
| MAC Address Table Size | 64,000 entries |
| Routing Table Size | 10,000 entries (IPv4) |
