Introduction to the Switch 4210 Family Non-PWR Models 15Combo port, either the SFP port or the corresponding 10/100/1000BASE-TEthernet port can be used at one time.Figure 12 shows the Switch 4210 18-port model’s front panel.Figure 12 The Switch 4210 18-port model’s front panelRear panelFigure 13 The Switch 4210 18-port model’s rear panelPower systemThe Switch 4210 18-port model’s support AC input.■ Rate voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz■ Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 HzCooling system3Com Switch 4210 non-PWR models have a fanless design cooled from naturalairflow.Switch 4210 26-port Front panelThe Switch 4210 26-port front panel provides 24 10/100Base-TX autosensingEthernet ports, two 10/100/1000Base-T autosensing Ethernet ports, two100/1000Base-X SFP ports, and one Console port. Each SFP port and thecorresponding 10/100/1000BASE-T autosensing Ethernet port form a Comboport. For each Combo port, either the SFP port or the corresponding10/100/1000BASE-T Ethernet port can be used at a time.(1) (2) (4)(5)(6)(7)(8)(3)(7)(1) 10/100Base-TX autosensing port Speed LED (green)(2) 10/100Base-TX autosensing port (3) Combo port Speed LED (green)(4) 10/100/1000Base-T autosensing port (5) Console port(6) 100/1000Base-X SFP port (7) Link/Act LED (green)(8) Power LED (PWR)(1) (2)(1) Grounding screw (2) AC input terminal block