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3Com Baseline Switch 2928-SFP Plus 
Front Panel 
Figure 1-3 3Com Baseline Switch 2928-SFP Plus front panel 
 
 
(1) 10/100/1000Base-T auto-sensing Ethernet port  (2) Port status LED 
(3) Power LED (Power)  (4) Console port 
(5) 1000Base-X SFP interface 
 
Rear Panel 
Figure 1-4 3Com Baseline Switch 2928-SFP 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-SFP Plus is equipped with one fan for heat dissipation.