| Physical dimensions (includes ejector bracket/lever); (H x W x D); weight | ASR 9902 chassis (including 2 RPs, 2 PSUs, 3 FANs): H x W x D: 3.45 x 17.3 x 19 in.; 46.39 lb (87.63 x 439.74 x 482.60 mm; 21.04 kg) Note: Excluding ejector, the depth is 19 in./482.6 mm | 
| Redundancy | Route processor redundancy Power supply redundancy Fan redundancy Software redundancy | 
| Port density | ASR 9902 chassis with integrated ports:2 QSFP-DD ports capable of 10Gb, 40Gb, and 100Gb Ethernet6 QSFP28 ports capable of 10Gb, 40Gb, and 100Gb Ethernet16 SFP28 dual-rate ports capable of 25Gb and 10Gb Ethernet24 SFP  ports capable of 10Gb Ethernet (LAN) and WAN (OTN)
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| RP CPU memory | SDRAM DDR4 – 32GB | 
| Rack mounting | 2-post and 4-post 19-in. and 23-in. | 
| Airflow | Front to back | 
| Power | 1.6 kW DC power module (up to 2 modules), redundancy: 1 11.6 kW AC power module (up to 2 modules), redundancy: 1 1 Note: Mixing of AC and DC modules is not supported.
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| Ethernet | 10-Gbps IEEE 802.3ae compliant25-Gbps IEEE 802.3by and IEEE 802.3cc compliant40/100-Gbps IEEE 802.3ba compliant100 Gigabit Ethernet PHY monitoringIEEE 802.x flow controlFull-duplex operationPer-port byte and packet counters for policy drops; oversubscription drops; Cyclic Redundancy Check (CRC) error drops; packet sizes; and unicast, multicast, and broadcast packets
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| Performance | 10-Gbps line-rate throughput per SFP  port25-Gbps line-rate throughput per SFP28 port100-Gbps line-rate throughput per QSFP28 or QSFP-DD port
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| Operating temperature | 41 to 104°F (5 to 40°C) Note: Limitations may apply when using high-power optics | 
| Operating humidity (nominal) (relative humidity) | 10 to 85% | 
| Storage temperature | –40 to 158°F (–40 to 70°C) | 
| Storage (relative humidity) | 5 to 95% Note: Not to exceed 0.024 kg of water per kg of dry air | 
| Operating altitude | 0 to 4000 m Note: Limitations may apply when using high-power optics | 
| ETSI/EN standards | The Cisco ASR 9902 Router is designed to meet:EN300 386: Telecommunications Network Equipment (EMC)ETSI 300 019 Storage Class 1.1ETSI 300 019 Transportation Class 2.3ETSI 300 019 Stationary Use Class 3.1EN55022: Information Technology Equipment (Emissions)EN55024: Information Technology Equipment (Immunity)EN50082-1/EN-61000-6-1: Generic Immunity Standard
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| EMC standards | The Cisco ASR 9902 Router is designed to meet:FCC Class AICES 003 Class AAS/NZS 3548 Class ACISPR 22 (EN55022) Class AVCCI Class ABSMI Class AIEC/EN 61000-3-2: Power Line HarmonicsIEC/EN 61000-3-3: Voltage Fluctuations and FlickerEN50121-4 Railway Applications Part 4: Emission and immunity of the signaling and telecommunications apparatus
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| Immunity | The Cisco ASR 9902 Router is designed to meet:IEC/EN-61000-4-2: Electrostatic Discharge Immunity (8kV Contact, 15kV Air)IEC/EN-61000-4-3: Radiated Immunity (10V/m)IEC/EN-61000-4-4: Electrical Fast Transient Immunity (2kV Power, 1kV Signal)IEC/EN-61000-4-5: Surge AC Port (4kV CM, 2kV DM)IEC/EN-61000-4-5: Signal Ports (1kV)IEC/EN-61000-4-5: Surge DC Port (1kV)IEC/EN-61000-4-6: Immunity to Conducted Disturbances (10Vrms)IEC/EN-61000-4-8: Power Frequency Magnetic Field Immunity (30A/m)IEC/EN-61000-4-11: Voltage DIPS, Short Interruptions, and Voltage VariationsEN 50121-4: Railway EMC
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| Safety | The Cisco ASR 9902 Router is designed to meet:UL/CSA/IEC/EN 60950-1IEC/EN 60825 Laser SafetyACA TS001AS/NZS 60950FDA: Code of Federal Regulations Laser Safety
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| Network Equipment Building Systems (NEBS) | The Cisco ASR 9902 Router is designed to meet:SR-3580: NEBS Criteria Levels (Level 3)GR-1089-CORE: NEBS EMC and SafetyGR-63-CORE: NEBS Physical Protection
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