| Physical specifications |  			 			 				- Dimensions (W x D x H): 442.0 mm x 600.0 mm x 88.1 mm (17.4 in. x 23.6 in. x 3.47 in.)
  				- Weight (with two power modules and two fan modules, calculated based on the heaviest model if multiple models are supported): 21.3 kg
  			  			 |  		
 		 			| Environment parameters |  			Temperature |  			 			 				- Operating temperature: 0°C to 40°C (32°F to 104°F) at altitude of 0-1800 m (0-5906 ft.)
  				- Storage temperature: -40°C to +70°C (-40°F to +158°F)
  			  			 |  		
 		 			| Relative humidity |  			5% RH to 95% RH, noncondensing |  		
 		 			| Altitude |  			< 5000 m (16404 ft.) |  		
 		 			| Noise (sound pressure, 27°C) |  			 			 				- Back-to-front airflow: < 58 dBA
  				- Front-to-back airflow: < 56 dBA
  			  			 |  		
 		 			| Power specifications |  			Power source type |  			AC/DC/high-voltage DC |  		
 		 			| AC power input |  			 			 				- Rated input voltage range: 100 V AC to 130 V AC/200 V AC to 240 V AC, 50/60 Hz
  				- Maximum input voltage range: 90 V AC to 290 V AC, 47 Hz to 63 Hz
  			  			 |  		
 		 			| DC power input |  			 			 				- Rated voltage range: -48 V DC to -60 V DC
  				- Maximum voltage range: -38.4 V DC to -72 V DC
  			  			 |  		
 		 			| High-voltage DC power input |  			 			 				- Rated voltage of 240 V high-voltage DC power input: 240 V DC
  				- Maximum voltage range of 240 V high-voltage DC power input: 188 V DC to 290 V DC
  				- Rated voltage range of 380 V high-voltage DC power input: 240 V DC to 380 V DC
  				- Maximum voltage range of 380 V high-voltage DC power input: 188 V DC to 400 V DC
  			  			 |  		
 		 			| Rated input current |  			 			 				- 1200 W AC&240 V DC power module (PAC-1K2WA series): 10 A (100 V AC to 130 V AC)/8 A (200 V AC to 240 V AC)/8 A (240 V DC)
  				- 1200 W high-voltage DC power module (PHD-1K2WA series): 8 A (240 V DC to 380 V DC)
  				- 1200 W DC power (PDC-1K2WA series): 38 A (-48 V DC to -60 V DC)
  			  			 |  		
 		 			| Chassis power consumption |  			Maximum power consumption |  			 			 				- Fully configured with four CE88-D8CQ cards: 658 W
  				- Fully configured with four CE88-D16Q cards: 620 W
  				- Fully configured with four CE88-D24T2CQ cards: 747 W
  				- Fully configured with four CE88-D24S2CQ cards: 674 W
  				- Fully configured with four CE88-D24S2CQ-U cards: 795 W
  			  			 |  		
 		 			| Typical power consumption |  			 			 				- Fully configured with four CE88-D8CQ cards: 398 W (100% throughput, QSFP28 cables on 32 ports, double power modules)
  				- Fully configured with four CE88-D16Q cards: 383 W (100% throughput, QSFP+ cables on 64 ports, double power modules)
  				- Fully configured with four CE88-D24T2CQ cards: 532 W (100% throughput, 3 m Ethernet cables on 96 ports and QSFP28 cables on 8 ports, double power modules)
  				- Fully configured with four CE88-D24S2CQ cards: 437 W (100% throughput, SFP28 cables on 96 ports and QSFP28 cables on 8 ports, double power modules)
  				- Fully configured with four CE88-D24S2CQ-U cards: 525 W (100% throughput, SFP28 cables on 96 ports and QSFP28 cables on 8 ports, double power modules)
  			  			 |  		
 		 			| Chassis heat dissipation |  			Maximum heat dissipation |  			 			 				- Fully configured with four CE88-D8CQ cards: 2245 BTU/hr
  				- Fully configured with four CE88-D16Q cards: 2116 BTU/hr
  				- Fully configured with four CE88-D24T2CQ cards: 2549 BTU/hr
  				- Fully configured with four CE88-D24S2CQ cards: 2300 BTU/hr
  				- Fully configured with four CE88-D24S2CQ-U cards: 2713 BTU/hr
  			  			 |  		
 		 			| Typical heat dissipation |  			 			 				- Fully configured with four CE88-D8CQ cards: 1358 BTU/hr (100% throughput, QSFP28 cables on 32 ports, double power modules)
  				- Fully configured with four CE88-D16Q cards: 1307 BTU/hr (100% throughput, QSFP+ cables on 64 ports, double power modules)
  				- Fully configured with four CE88-D24T2CQ cards: 1815 BTU/hr (100% throughput, 3 m Ethernet cables on 96 ports and QSFP28 cables on 8 ports, double power modules)
  				- Fully configured with four CE88-D24S2CQ cards: 1491 BTU/hr (100% throughput, SFP28 cables on 96 ports and QSFP28 cables on 8 ports, double power modules)
  				- Fully configured with four CE88-D24S2CQ-U cards: 1791 BTU/hr (100% throughput, SFP28 cables on 96 ports and QSFP28 cables on 8 ports, double power modules)
  			  			 |  		
 		 			| Surge protection |  			 			Power module: 			 				- AC: 4 kV in common mode and 2.5 kV in differential mode
  				- DC: 4 kV in common mode and 2 kV in differential mode
  			  			  			 |  		
 		 			| Heat dissipation |  			Heat dissipation mode |  			Air cooling |  		
 		 			| Airflow |  			Front-to-back or back-to-front, which is determined by features of fan modules and power modules |  		
 		 			| Reliability and availability |  			Power module backup |  			1+1 backup |  		
 		 			| Fan module backup |  			Two fan modules, working in 1+1 backup mode when the temperature is below 35°C |  		
 		 			| Hot swap |  			Supported by all power modules and fan modules |  		
 		 			| Mean time between failures (MTBF) |  			36.02 years |  		
 		 			| Mean time to repair (MTTR) |  			1.87 hours |  		
 		 			| Availability |  			0.9999940608 |  		
 		 			| Technical specifications |  			Processor |  			1.5 GHz, eight-core |  		
 		 			| DRAM Memory |  			4 GB |  		
 		 			| NOR Flash |  			32 MB |  		
 		 			| NAND Flash |  			2 GB |  		
 		 			| Stack |  			Service port supporting the stack function |  			See the description of ports on each card. |  		
 		 			| Certification |  			 			 				- Safety standards compliance
  				- EMC standards compliance
  				- Environmental standards compliance
  			  			 |