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Chassis
Console
ports
10/100/1000Base-T
auto-sensing Ethernet
ports
1000Base-X
SFP ports
Interafce
card slots
5120-48G EI (2 slots)
5120-48G EI TAA (2 slots)
1 48 4 2
5120-48G-PoE+ EI (2 slots)
5120-48G-PoE+ EI TAA (2 slots)
1 48, PoE+ 4 2
5120-8G SI 1 8 1 N/A
5120-16G SI 1 16 4 N/A
5120-24G SI 1 24 4 N/A
5120-8G-PoE+ SI 1 8, PoE+ 1 N/A
5120-8G-PPoE+ SI 1 8, PPoE+ 1 N/A
5120-24G-PoE+ SI 1 24, PoE+ 4 N/A
5120-24G-PPoE+ SI 1 24, PPoE+ 4 N/A
5120-48G SI 1 48 4 N/A
NOTE:
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 o
ne
port in a pair is activated, the other port automatically shuts down.
Environmental specifications
Chassis Operating temperature Relative humidity
All chassis 0°C to 45°C (32°F to 113°F) 10% to 90%, noncondensing
Power specifications
Power input types
Chassis AC-input power receptacle RPS receptacle
All 5120 EI chassis,
5120-24G-PoE+ SI
1 1
All 5120 SI chassis but the
5120-24G-PoE+ SI
1 N/A
The RPS can supply power to your switch when the AC power line fails or cannot supply sufficient power.