| S5731S-S48T4X-A Specification | |
| Memory (RAM) | 4 GB | 
| Flash | 1 GB in total. To view the available flash memory size, run the display version command. | 
| Mean time between failures (MTBF) | 55.31 years | 
| Mean time to repair (MTTR) | 2 hours | 
| Availability | > 0.99999 | 
| Service port surge protection | Common mode: ±6 kV | 
| Power supply surge protection | • Using AC power modules: ±6 kV in differential mode, ±6 kV in common mode • Using DC power modules: ±2 kV in differential mode, ±4 kV in common mode | 
| Dimensions (H x W x D) | • Basic dimensions (excluding the parts protruding from the body): 43.6 mm x 442.0 mm x 420.0 mm (1.72 in. x 17.4 in. x 16.5 in.) • Maximum dimensions (the depth is the distance from ports on the front panel to the handle on the rear panel): 43.6 mm x 442.0 mm x 448.0 mm (1.72 in. x 17.4 in. x 17.7 in.) | 
| Weight (with packaging) | 9.5 kg (20.94 lb) | 
| Stack ports | 10GE SFP+ ports on the front panel | 
| RTC | Supported | 
| RPS | Not supported | 
| PoE | Not supported | 
| Rated voltage range | • AC input: 100 V AC to 240 V AC, 50/60 Hz • High-Voltage DC input: 240 V DC • DC input: -48 V DC to -60 V DC | 
| Maximum voltage range | • AC input: 90 V AC to 290 V AC, 45 Hz to 65 Hz • High-Voltage DC input: 190 V DC to 290 V DC • DC input: -38.4 V DC to -72 V DC | 
| Maximum power consumption (100% throughput, full speed of fans) | 124 W | 
| Typical power consumption (30% of traffic load, tested according to ATIS standard) | 101 W | 
| Operating temperature | -5°C to +45°C (23°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.) NOTE: When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.). The switch cannot be started when the ambient temperature is lower than 0°C (32°F). | 
| Storage temperature | -40°C to +70°C (-40°F to +158°F) | 
| Noise under normal temperature (27°C, sound power) | < 57.5 dB(A) | 
| Relative humidity | 5% to 95%, noncondensing | 
 
                     
                
                 
                 
                        







 
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                    