1-6 
3Com Baseline Switch 2928-PWR Plus 
Front Panel 
Figure 1-7 3Com Baseline Switch 2928-PWR Plus front panel 
 
 
(1) 10/100/1000Base-T auto-sensing Ethernet port (2) Port status LED mode switching button 
(3) Port status LED  (4) Power LED (Power) 
(5) Port mode LED  (6) Console port Port 
(7) 1000Base-X SFP interface 
 
Rear Panel 
Figure 1-8 3Com Baseline Switch 2928-PWR Plus rear panel 
 
 
(1) AC receptacle  (2) Grounding screw 
 
Power Supply System 
AC power input: 
Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz 
Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz 
Cooling System 
The 3Com Baseline Switch 2928-PWR Plus is equipped with three fans for heat dissipation.