1-8 
Figure 1-11 Front panel of the S5120-48P-EI Ethernet switch 
 
(1) 10/100/1000 Base-T auto-sensing Ethernet port 
(2) 10/100/1000 Base-T auto-sensing Ethernet port status LED 
(3) Console port  (4) Seven-segment LED 
(5) Port mode LED (Mode)  (6) System status LED (PWR) 
(7) RPS status LED (RPS)  (8) Port status LED mode switching button 
(9) 1000 Base-X SFP port  (10) 1000Base-X SFP port status LED 
 
Rear Panel 
Figure 1-12 Rear panel of the S5120-48P-EI Ethernet switch 
 
(1) AC power input  (2) RPS power input (shipped with a protective cover) 
(3) Grounding screw  (4) “DO NOT REMOVE” label 
 
 
The S5120-48P-EI does not support any interface modules.  
 
Ports 
Console Port 
Each S5120-EI series provides one console port on the front panel. Table 1-2 describes the console 
port specifications. 
Table 1-2 Console port specifications 
Item  Specification 
Connector type
 
RJ-45 
Compliant standard
 
EIA/TIA-232 
Transmission baud 
rate 
9600 bps to 115200 bps (defaulting to 9600 bps)