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ASR 902

Cisco ASR 902, ASR 902U Hardware Installation Manual

Overview
Note
The Cisco ASR 902 Router and the Cisco ASR 902U Router are collectively referred to as the Cisco ASR 902 Router in this document. Any differences between the routers are specifically called out.
The Cisco ASR 902 Router is a full-featured aggregation platform designed for cost-effective delivery of converged mobile and business services. With shallow depth, low power consumption, and an extended temperature range, this compact 2-rack unit (RU) router provides high service scale and flexible hardware configuration.
The Cisco ASR 902 Router is positioned as a preaggregation router in IP Radio Access Network (RAN) (Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Image Maximum (iMAX), Code division multiple access (CDMA), and Long Term Evolution (LTE)) networks or an aggregation router in Carrier Ethernet networks.
Cisco ASR 902 Router Features, page 1
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Interface Numbering, page 36
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Regulatory Compliance, page 37
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Cisco ASR 902 Router Features
The Cisco ASR 902 Router has the following hardware features:
2-RU modular chassis designed for installation in a 300-mm European Telecommunications Standards
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Institute (ETSI) cabinet
Dedicated slots in the chassis that support the following:
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Up to four interface modules
◦
One Route Switch Processor (RSP)
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Up to two DC or two AC or a combination of AC and DC power supply units
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Cisco ASR 902 Router Features
Network frequency, phase, and time inputs and outputs for network interfaces (SyncE and TDM), BITS,
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1 PPS or 10 MHz and Timing over Packet (IEEE 1588-2008)
Adjustable front and rear rail mounting locations
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Front panel access to power supplies, fan tray, RSP, and interface modules
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Online insertion and removal (OIR) of interface modules, power supplies, and fan tray
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Discrete status LEDs on power supply, interface module, RSP, and fan tray units
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Two alarm dry contact inputs (either normally open or normally closed)
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Environmental-monitoring and environmental-reporting functions
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LED indicators for critical, major, and minor alarms
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Side-to-side forced air cooling
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Temperature range of -40 to 149 degrees F (-40 to 65 degrees C) with 550W DC power supply
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One fan tray
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Overview
Temperature range of 32 to 122 degrees F (-5 to 55 degrees C) with 550W AC power supply
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The figure below illustrates the Cisco ASR 902 Router chassis design.
Figure 1: Cisco ASR 902 Router Chassis Design
ComponentLabel
Interface modules1
RSP unit2
4
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
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Fan tray3
Redundant power units (two DC power units are shown)
Overview
System Specifications
The table below summarizes the system specifications and environmental requirements for the Cisco ASR 902 Router.
Table 1: Cisco ASR 902 Router System Specifications
System Specifications
Dimensions (Height x Width x Depth)
Weight
Operating Temperature
3.56 in. x17.44 in. x 10.565 in. (90.424 x 442.976 x
268.351 mm)
Note
This measurement includes handles from the power supply, fan tray, and interface modules installed in the chassis.
24.030 pounds (10.9 kg)
Note
This weight includes a power supply.
The Cisco ASR 902 Router supports the following temperature ranges with the DC power supply:
• –60 to 4000 meters: –40 to 104ºF (–40 to +
40ºC)
• –60 to 1800 meters: –40 to 149ºF (–40 to +
65ºC)
The Cisco ASR 902 Router supports the following temperature ranges with the AC power supply:
• –60 to 4000 meters: 32 to 104ºF (0 to 40ºC)
• –60 to 1800 meters: 23 to 140ºF(–5 to 55ºC)
Nonoperating Temperature
Operating Altitude
Nonoperating Vibration
–40 to 185ºF (–40 to +85ºC) storage temperature
5 to 95% operating noncondensing relative humidityOperating Humidity
–60 to 1800m operating altitude for full operating temperature range; up to 4000m at up to 40ºC.
4572m storage altitudeNonoperating Altitude
1.0 g from 1.0 to 150 HzVibration
30 G half sine 6 and 11 msShock
Random: 1.15 gRMS 3 to 200 Hz, 30 minutes/axis
Sine: 10 to 500 Hz @ 0.8 G peak/5 sweep cycles/axis
< 68.5 dBa @ 27ºCOperating Acoustics
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Power Supply Features
Power Supply Features
The Cisco ASR 902 Router supports AC and DC power supplies. For more information about installing the Cisco ASR 902 Router power supplies, see the Installing the Power Supply section. The power sections provide more information about the power supply:
Redundancy
The Cisco ASR 902 Router chassis includes a slot for optional redundant power supply. The redundant power supply option provides a second power supply to ensure that power to the chassis continues uninterrupted if one power supply fails or input power on one line fails. Redundancy is supported either with identical power supplies or a combination of AC and DC power supply. The Cisco ASR 902 Router supports current sharing between the power supplies.
A redundant power supply on the Cisco ASR 902 Router is recommended. Each power supply should be connected to separate independent power sources to ensure that the router maintains power in the event of a power interruption caused by an electrical failure, a wiring fault, or a tripped circuit breaker.
Overview
Caution
Dying Gasp
Note
Status LEDs
To comply with IEC 61850-3 (voltage interruptions), redundant power supplies with separately derived power feeds are required.
The Cisco ASR 902 Router DC power supply supports the Dying Gasp feature, which allows the router to provide an input power loss notification to the RSP so that the RSP can send appropriate SNMP traps or OAM messages and update log files on the router. With the DC power supply, the router supports a minimum input power loss detection time of 2 milliseconds (DC) and continued operation of at least 6 milliseconds (DC) after the notification.
Continued DC power supply operation may vary for voltages other than +24/–48V.
Dying Gasp is not supported on the ASR 900 RSP3 module with the 1200 W DC power supply.Note
LEDs are also provided on each power supply to indicate the status of the input power and the health of the power supply. For more information about the LEDs on the Cisco ASR 902 Router, see Troubleshooting.
DC Power Specifications
The Cisco ASR 902 Router uses a +24/-48 DC voltage power supply (with DC voltage tolerance from -19 to
-72 VDC).
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Overview
Power Supply Features
The power supply provides 550W output power for the system. The power supply is field replaceable, hot swappable, and operates separately from the fan tray. The power supply contains a front panel with mounting screws, a handle for insertion and removal, and two status LEDs. No ON/OFF switch is provided.
The DC PSU models supported on the router are:
• A900-PWR550-D—Uses an Euro-style three-position terminal block connector ( Figure 1-2 )
• A900-PWR550-D-E—Uses a T-shaped connector ( Figure 1-3 )
• A900-PWR1200-D—Provides 975 W output power for system 12 V power with the A902-FAN-E
module. As most of the system configurations using A900-RSP3C-200-S RSP modules require power exceeding 550 W, we recommend using the A900-PWR1200-D power supply with A900-RSP3C-200-S RSP modules. ( Figure 1-4 )
Figure 2: DC PSU Module (A900-PWR550-D) with Euro-Style Connector
ComponentLabel
Euro-style connector1
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
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Power Supply Features
Figure 3: DC PSU (A900-PWR550-D-E) with T-Shaped Connector
Overview
Table 2: DC Power Supply Specifications‘(550 W)
Nominal input voltage specification
Input voltage range
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ComponentLabel
T-shaped connector1
A900-PWR550-D, A900-PWR550-D-EPart numbers
+24 VDC/–48 VDC
–19.2 VDC to –72 VDC
Overview
Power Supply Features
+12 VDCOutput voltage
Wire gauge for DC input power connections
Figure 4: DC PSU Module (A900-PWR1200-D)
12 AWG minimum for –48/-60 VDC
8 AWG minimum for 24 VDC
Connector accepts 8 AWG maximum
550 WMaximum power output
ComponentLabel
T-shaped connector1
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Power Supply Features
Table 3: DC Power Supply Specifications (A900-PWR1200-D)
Overview
A900-PWR1200-DPart numbers
48V, GND, -48VNominal input voltage specification
-40.8 VDC to -72 VDCInput voltage range
+12 VDCOutput voltage
Wire gauge for DC input power connections
Maximum power output
AC Power Specifications
The AC PSU models supported on the router are:
• A900-PWR550-A—Provides 550 W power
• A900-PWR1200-D—Provides 1200 W power
The table below summarizes the input power specifications for the Cisco ASR 902 Router AC power supply units.
Table 4: AC Power Supply Specifications (A900-PWR550-A)
8-10 AWG minimum for -48/-60 VDC.
Connector accepts 8 AWG maximum.
1200 W
975W with A902-FAN-E
A900-PWR550-APart number
115VAC/ 230VACInput power specification
• A900-PWR1200-A—Provides 975 W output power for system 12 V power with the A902-FAN-E
module. As most of the system configurations using A900-RSP3C-200-S RSP modules require power
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
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85/264 VACInput voltage
85 VACMinimum input voltage
264 VACMaximum input voltage
12 VDCMinimum output voltage
12.4 VDCMaximum output voltage
550 WMaximum power output
Overview
Fan Tray
exceeding 550 W, we recommend using the A900-PWR1200-A power supply with A900-RSP3C-200-S RSP modules. ( see the figure below )
Figure 5: Power Supply (A900-PWR1200-A)
Fan Tray
Table 5: AC Power Supply Specifications (A900-PWR1200-A)
Maximum power output
A900-PWR1200-APart number
115VAC/ 230VACInput power specification
85/264 VACInput voltage
85 VACMinimum input voltage
264 VACMaximum input voltage
12VMinimum output voltage
12.4VMaximum output voltage
1200 W
975W with A902-FAN-E
The fan tray has the following hardware features:
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Fan Tray
It provides side-to-side forced air cooling
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It provides redundant fans
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It is field replaceable
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It contains status LEDs
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It contains two alarm ports with two external alarm inputs
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The fan tray modules supported on the router are:
A902-FAN-E ( Figure 1-6 )
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For more information about air flow guidelines, see the Air Flow Guidelines section . For instructions on how to install the fan tray, see the Installing the Fan Tray section. For a summary of the LEDs on the fan tray, see the LED Summary section .
Fan Tray (A902-FAN-E)
Overview
The Cisco ASR 902 Router uses a modular fan tray that is separate from the power supply. The A902-FAN-E is a fan tray containing eight (40 x 40 x 20 mm) fans and provides sufficient capacity to maintain operations indefinitely in the event of an individual fan failure. It has a 8-mm fan dust filter that prevents dust from entering the unit and avoids possible damage to the components. The fan tray is IEC60950-1 compliant.
Figure 6: Cisco ASR 902 Fan Tray with Dust Filter and Dummy Cover (A902-FAN-E)
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
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ComponentLabelComponentLabel
Dummy cover4Label1
Pull tab5Alarm2
Overview
Air Plenum
ComponentLabelComponentLabel
Dust Filter (A902-FAN-F)
Air Plenum
Note
Dust filter3
The dust filter (as shown in the figure in Fan Tray (A902-FAN-E section) on the fan tray is a quadrafoam 45PPI filter that is 85 percent dust resistant. A dummy cover (A902-FAN-F-B) secures the dust filter in the chassis. For installing the fan filter, see the Installing the Dust Filter section.
Use the pull tab to easily access the filter.Note
Air plenum or air baffle assembly is used to change the air flow pattern of the unit. When the router is installed with the plenum, the air flow pattern is changed from side-side to front-back. The front-back air flow pattern provides a rack installation bay with a cool front zone and a hot rear zone. For information about installing the plenum, see Installing the Router Chassis in the Air Plenum.
When the air plenum and the fan filter are installed in the chassis, the system’s maximum operating temperature should be 55 degrees Celsius.
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RSP Modules
To order an air plenum, contact the Sales and Marketing staff at GAW (www.GawTechnology.net) (see Table
A-2).
The Cisco ASR 902 Router is designed to use a single RSP module to handle the data plane, network timing, and control plane functionalities for the router. The RSP configuration allows you to use Cisco IOS software to control chassis management, external management, and system status indications on the router.
RSP features include:
Loading software onto processor-based interface modules
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Packet processing
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Traffic management, including buffering, queuing, and scheduling, Ethernet MAC functions.
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Network clocking functions, including phase and time-of-day for Building Integrated Timing Source
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(BITS), 1 PPS, 10 MHz, and 1588 Precision Time Protocol (PTP) clock references.
Storage of software images, system configuration, Onboard Failure Logging (OBFL), syslog.
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PTP packet processing, including IEEE 1588-2008 for recovering network timing (frequency, phase,
•
and time) from upstream PTP clocks for generating PTP frequency and phase references as inputs to
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RSP Modules
Supported RSPs
The Cisco ASR 902 Router supports the following RSPs:
Overview
the Synchronous Equipment Timing Source (SETS), and for distributing them to downstream PTP clocks.
External management interfaces (RS232 console, management ENET, USB console, USB storage) and
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system-status LED indicators.
• A900-RSP1A-55—Provides 2-GB of synchronous dynamic random access memory (SDRAM), 5 Mb
of Ternary content-addressable memory (TCAM), 3-Mb buffer table, 576-Mb forwarding memory, and 1,536-Mb packet buffer memory.
• A900-RSP1B-55—Provides 4-GB of SDRAM, 20 Mb of TCAM memory, 144-Mb buffer table, 1152-Mb
forwarding memory, and 1,536-Mb packet buffer memory.
• A900-RSP2A-128—Provides 4-GB double data rate type three (DDR3) memory and 128-Gbps aggregate
throughput.
• A900-RSP2A-64—Provides 4-GB double data rate type three (DDR3) memory and 64-Gbps aggregate
throughput.
• A900-RSP3C-200-S—Provides 8 GB DDR3 memory, 64MB flash memory, 20 Mb of TCAM memory,
8 GB of SDRAM, 200 Gbps throughput, and a USB port for mass storage on the faceplate.
The Cisco ASR 902U Router supports the following RSPs:
• A900U-RSP2A-128—Provides 4-GB double data rate type three (DDR3) memory and 128-Gbps
aggregate throughput.
• A900U-RSP2A-64—Provides 4-GB double data rate type three (DDR3) memory and 64-Gbps aggregate
throughput.
The SD memory card is not field replaceable. Do not try to remove or replace it.Caution
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