研华工业级的带光纤端口的以太网交换机可以让用户快速有效地扩充工业网络。应用光纤可防止系统噪声干扰，传输距离也可高在2km。此外，上述产品的顶级工业化设计还保证了可靠性和稳定性。因此，工业级的带光纤端口的以太网交换机特别适合有以太网需求的工业环境。

研华交换机选型及分类：

 EKI-4668C  24 FE + 4 Combo Port L3 Managed Industrial Ethernet Switch 
 
 EKI-2548I  8Tx Managed Ethernet Switch with Wide Temperature 
 
 EKI-2548MI  6Tx+2 Fiber Optic Managed Ethernet Switches with Wide Temperature 
 
 EKI-2548SI  6Tx+2 Fiber Optic Managed Ethernet Switches with Wide Temperature 
 
 EKI-2748CI  6Gx+2 Combo Managed Ethernet Switch with Wide Temperature 
 
 EKI-2748FI  4Gx+4SFP Managed Ethernet Switch with Wide Temperature 
 
 EKI-4654R  24 FE + 2 SFP (Mini-GBIC) Managed Redundant Ethernet Switch 
 
 EKI-7554MI  4+2 SC Type Fiber Optic Managed Industrial Ethernet Switch with Wide Temperature 
 
 EKI-7554SI  4+2 SC Type Fiber Optic Managed Industrial Ethernet Switch with Wide Temperature 
 
 EKI-7556MI  16+2 SC Type Fiber Optic Managed Industrial Ethernet Switch with Wide Temperature 
 
 EKI-7559MI  8+2 SC Type Fiber Optic Managed Industrial Ethernet Switch with Wide Temperature 
 
 EKI-7559SI  8+2 SC Type Fiber Optic Managed Industrial Ethernet Switch with Wide Temperature 
 
 EKI-7654C  4+2G Combo Port Gigabit Managed Redundant Industrial Ethernet Switch 
 
 EKI-7656C  16+2G Combo Port Gigabit Managed Redundant Industrial Ethernet Switch 
 
 EKI-7656CI  16+2G Combo Port Gigabit Managed Redundant Industrial Ethernet Switch w/ Wide Temp 
 
 EKI-7657C  7+3G Combo Port Gigabit Managed Redundant Industrial Ethernet Switch with 2 x DI/O 
 
 EKI-7659C  8+2G Combo Port Gigabit Managed Redundant Industrial Ethernet Switch 
 
 EKI-7659CI  8+2G Combo Port Gigabit Managed Redundant Industrial Ethernet Switch w/ Wide Temp 
 
 EKI-7758F  4G+4 SFP Gigabit Managed Redundant Industrial Ethernet Switch