Cisco ASR 903 Router Specifications |
| Physical specifications | Height: 5.22 in. (132.6 mm) - 3RU Width: 17.44 in. (443 mm) Depth: 9.22 in. (234.2 mm) Weight: ● 34.17 lb (15.5 kg) with two RSPs, two DC power supplies, and loaded with a typical combination of interface module cards ● 11.2 lb (5.1 kg) for an empty chassis ● 38 lb shipment weight |
| Rack mounts | ETSI rack mount kit 19 in. rack mount kit 23 in. rack mount kit |
| Power supplies | 2 power supply slots |
| Interface modules | 6 interface module slots |
| Route switch processors | 2 RSP slots |
| Fan tray | 1 fan tray with fan redundancy 4 dry contact input alarms on the fan tray |
| Air flow | Side-to-side airflow; inlet on the right side, outlet on the left side when looking from the front |
| Power supplies | Up to 2 power supplies (AC or DC) Modules operate in load-share mode System can operate on a single power supply and supports mixing of one AC and one DC power supplies in a single chassis. |
| Chassis MTBF at 40ºC operating temperature | 900,000 hours |
| Fan Tray MTBF at 40ºC operating temperature | 600,000 hours |
| Power consumption | Maximum input power 1350W (including loss). This is equivalent to 4600 BTU per hr. |
| AC input voltage and frequency | Voltage range: 85 to 264 VAC, nominal 115 to 230 VAC Frequency Range: 47 to 63 Hz, nominal 50 to 60 Hz |
| AC Power Supply MTBF at 40ºC operating temperature | 300,000 hours |
| DC input voltage | For 550W DC power supply, voltage range: 19.2V to 72V DC, nominal +24V DC, -48V/–60V DC. For 1200W DC power supply, voltage range: –40.8V to –72V DC, nominal –48V/–60V DC |
| DC Power Supply MTBF at 40ºC operating temperature | 300,000 hours |
| Power Supply shipment packaging size (L x W x H) | 15.44 in. x 9.44 in. x 4.31 in. |
| Power Supply shipment weight | 3.6 lbs. |
| Operating environment and altitude | –40 to 65ºC operating temperature (DC operation, with both the 550W and the 1200W power supplies) –40 to 65ºC operating temperature (AC operation, with the 1200W power supply) –5 to 55ºC operating temperature (AC operation, with 550W AC power supply) 0 to 40ºC operating temperature (AC operation, with 550W AC power supply) –60 to 1800m operating altitude (for full operating temperature range) Up to 4000m operating altitude (at up to 40ºC temperature) |
