为什么你会想要它
IEEE 802.3af/at
Compliant with IEEE 802.3af/at PoE devices and meets IEEE 802.3, 802.3u, and 802.3x standards for reliable performance.
Support VLAN, Extend Modes & Watchdog
● Watchdog: Auto-reboot on anomaly for stable operation. ● VLAN：端口隔离，用于阻挡广播风暴。 ● 扩展：通过 UTP 线缆，以 10Mbps 速率传输 250 米。
即插即用
支持桌面安装，采用即插即用设计，便于部署。
流控制方法
支持全双工 (IEEE 802.3x) 和半双工 (背压) 流控方式。
自动MDI/MDIX
5.Support Automatic port flipping eliminates the need for crossover cables, simplifying setup.
Store-and-forward
6.Utilizes a store-and-forward switching mechanism for efficient data handling.
Compact Long-Range PoE Switch for Small Deployments
With 4 Fast Ethernet PoE ports and 2 uplink RJ45 ports, HY4H2-48 is ideal for space-constrained environments. It supports VLAN, Default, and Extend modes, with Extend mode delivering stable 10Mbps transmission up to 250 meters—perfect for IP cameras in small shops or offices.
Plug-and-Play & Fanless desktop design
Operating at 0°C to 40°C, this unmanaged plug-and-play switch features IEEE 802.3af/at PoE and a watchdog function for basic link monitoring. Its fanless desktop design ensures silent operation.
规格
| 型号 | HY4H2-48 |
| 接口 | 4 *100Mbps PoE ports |
| 2 *100Mbps uplink RJ45 port | |
| 端口标准 | IEEE802.3 (Ethernet) |
| IEEE802.3u (Fast Ethernet) | |
| IEEE802.3x (Flow Control) | |
| 交换容量 | 1.2Gbps |
| 报文转发速率 | 0.8928Mpps |
| Packet Buffer | 768Kbit |
| MAC 地址表 | 2K |
| 传输方式 | Store and Forward |
| 端口标准 | IEEE802.3af （15.4W） |
| IEEE802.3at （30W） | |
| PoE 端口输出电压 | DC 44-57V |
| PoE Ports | Port 1-4 PoE power output <30W |
| PoE 功率预算 | 43W |
| Power Supply | AC 100-240V 50/60Hz |
| DC 48W | |
| 结构信息 | Product Dimensions : 160*90*35mm |
| Product Net Weight: 0.41KG | |
| Fan | Fanless |
| 安装 | desktop |
| Operating Temperature | 0~40°C |
| Storage Temperature | -40 °C to 70 °C |
| Operation Humidity | 10%~90%，non condensing |
| Storage Humidity | 5%~95%，non condensing |
支持
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