76 
Combo interface (only available on the 5120 EI switches) 
On a 5120 EI switch, the last four 10/100/1000Base-T Ethernet ports and the four SFP ports are 
copper/fiber combo ports in pairs, as shown in Table 17.
 They form four combo interfaces. When one 
port in a pair is activated, the other port automatically shuts down. For more information about combo 
interfaces, see HP 5120 EI Switch Series Configuration Guides. 
Table 17 Copper/fiber combo ports in pairs 
Chassis  SFP port  10/100/1000Base-T Ethernet port
GigabitEthernet 1/0/25  GigabitEthernet 1/0/22 
GigabitEthernet 1/0/26  GigabitEthernet 1/0/24 
GigabitEthernet 1/0/27  GigabitEthernet 1/0/21 
5120-24G EI (2 slots) 
5120-24G EI TAA (2 slots) 
5120-24G-PoE+ EI (2 slots) 
5120-24G-PoE+ EI TAA (2 slots) 
5120-24G EI 
GigabitEthernet 1/0/28  GigabitEthernet 1/0/23 
GigabitEthernet 1/0/49  GigabitEthernet 1/0/46 
GigabitEthernet 1/0/50  GigabitEthernet 1/0/48 
GigabitEthernet 1/0/51  GigabitEthernet 1/0/45 
5120-48G EI (2 slots) 
5120-48G EI TAA (2 slots) 
5120-48G-PoE+ EI (2 slots) 
5120-48G-PoE+ EI TAA (2 slots) 
5120-48G EI 
GigabitEthernet 1/0/52  GigabitEthernet 1/0/47 
 
LEDs (for the 5120 EI switches) 
Table 18 LEDs at a glance 
LED Availability 
System status LED  Entire series 
RPS status LED   Entire series 
Port mode LED  Entire series 
Seven-segment LED  Entire series 
10/100/1000Base-T Ethernet port LED  Entire series 
SFP port LED  Entire series 
Interface card status LED  Entire series (except the 5120-24G EI and 5120-48G EI) 
 
System status LED 
The system status LED shows the operating status of the switch. 
Table 19 System status LED description 
LED mark  Status  Description 
Steady green  The switch is operating properly. PWR 
Flashing green (1 Hz) 
The switch is performing power-on self 
test (POST).