Danh mục

Product Code	Cisco ASR-903=
Physical specifications	Height: 3.56 in. 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 slot
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 specifications
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 (LxWxH)	15.44 in. x 9.44 in. x 4.31 in.
Power Supply shipment weight	3.6 lbs.
Environmental
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) 2 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)
Outside plant	For an outside plant installation, it is required that the router be protected against airborne contaminants, dust, moisture, insects, pests, corrosive gases, polluted air, or other reactive elements present in the outside air. To achieve this level of protection, it is recommended that the unit be installed in a fully sealed enclosure. Examples of such cabinets include IP65 cabinets with heat exchanger complying with Telecordia GR487.
Relative humidity	5 to 95%, noncondensing
Acoustic noise	Acoustic noise peak operation complies with Network Equipment Building Standards (NEBS) GR-63-Core Issue 3 sound power level of 78 dB at 27ºC operation as measured by the ANSI S12.10/ISO 7779 NAIS noise measurement test standard.
Storage environment	Temperature: –40 to 70ºC altitude: 15,000 ft (4570m)
Seismic	Zone 4
Hazardous substances	Reduction of Hazardous Substances (ROHS) 6

Data sheet Cisco ASR 900 Series Aggregation Services Routers

Hardware components Router Cisco ASR-903

Part Number	Description
ASR 903 System Components
ASR-903	ASR 903 Router Chassis
ASR-903=	ASR 903 Router Chassis, Spare
A903-FAN	ASR 903 FAN Tray
A903-FAN=	ASR 903 FAN Tray, Spare
A903-FAN-E	ASR 903 Enhanced FAN Tray with FAN Filter Slot
A903-FAN-E=	ASR 903 Enhanced FAN Tray with FAN Filter Slot, Spare
A903-FAN-F	ASR 903 FAN Tray Filter
A903-FAN-F=	ASR 903 FAN Tray Filter, Spare
A903-FAN-F-B=	ASR 903 FAN Tray Filter Blank Panel, Spare
A903-RCKMNT-ETSI=	ETSI Rack Mount Option for the Cisco ASR 903, Spare
A903-RCKMNT-19IN=	EIA 19in Rack Mount Option for the Cisco ASR 903, Spare
A903-CAB-GUIDE=	ASR 903 Cable Guide Bracket, Spare
A903-CAB-BRACKET=	ASR 903 Cable Guide Bracket Option, Spare