3Com Switch 4210 Series Getting Started page 9

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If the left screw hole above the security slot is used, the security slot cannot be
used.
Power system
Switch 4210s 9-port PWR support AC input.
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Cooling system
Switch 4210s 9-port PWR each run two fans for heat dissipation.
Switch 4210 PWR Front panel
18-port
Switch 4210s 18-port PWR each provide sixteen 10/100Base-TX autosensing
Ethernet ports, two 10/100/1000Base-T Ethernet ports, two 100/1000Base SFP
ports, and one Console port. Each SFP port and the corresponding
10/100/1000BASE-T Ethernet port form a Combo port. For each Combo port,
either the SFP port or the corresponding 10/100/1000BASE-T Ethernet port can be
used at a time.
Figure 5 shows the front panel of an Switch 4210 18-port PWR.
Figure 5 Front panel of an Switch 4210 18-port PWR
(1) 10/100Base-TX autosensing Ethernet port status LED
(2) Link LED for Combo port
(4) Power LED (PWR)
(6) D/S LED
(8) Active LED for Combo port
Rate voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz
Input voltage range: 90 VAC to 264 VAC, 47 HZ to 63 Hz
(1)
Introduction to the Switch 4210 Family PWR Switches
(2) (3)
(8)
(3) Console port
(5) A/L LED
(7) Mode button
(4)
(7) (6) (5)
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