研华EKI-7720E-4F工业以太网交换机

• 16 Fast Ethernet ports + 4 SFP ports
• SFP socket for Easy and Flexible Fiber Expansion
• Redundancy: X-Ring Pro (ultra high-speed recovery time < 20 ms), RSTP/STP (802.1w/1D)
• IXM function enables fast deployment
• Security: 802.1x (Port-Based, MD5/TLS/TTLS/PEAP Encryption), RADIUS
• NEMA TS2 for Traffic Control
• EN50121-4 approval for Railway trackside deployment
• -40 ~ 75°C wide-range operating temperature (EKI-7720E-4FI)
• Dual 12~48 VDC power input and 1 relay output