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Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
First Published: 2015-10-01
Last Modified: 2018-02-20
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©
2015 - 2018 Cisco Systems, Inc. All rights reserved.
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CONTENTS
CHAPTER 1
Overview 1
Cisco ASR 903 Router Features 1
Power Supply Features 2
Redundancy 2
Dying Gasp 3
Status LEDs 3
DC Power Specifications 3
AC Power Specifications 7
Fan Tray 8
Fan Tray (A903-FAN) 9
Fan Tray (A903-FAN-E) 10
Air Plenum 11
RSP Modules 12
Supported RSPs 12
A900-RSP1 Supported Interface Modules 14
A900-RSP2 Supported Interface Modules 15
A900-RSP3C-400-S Supported Interface Modules 17
A900-RSP3C-200-S Supported Interface Modules 18
Supported RSP Features 19
RSP Redundancy 19
Network Timing Interfaces 20
RSP Interfaces 20
GNSS Module (A900-CM-GNSS) 22
GNSS Module RF Input Requirements 23
Interface Modules 24
8-Port 1 Gigabit Ethernet SFP Interface Module 24
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8-Port 1Gigabit Ethernet RJ45 Interface Module 24
1-Port 10 Gigabit Ethernet XFP Interface Module 25
8-port 10 Gigabit Ethernet Interface Module (8x10GE) 26
8-Port 1 Gigabit Ethernet SFP with 1-Port 10 Gigabit Ethernet Combination Interface Module
26
8-Port 1 Gigabit Ethernet + 1-Port 10 Gigabit Ethernet SFP+ Combination Interface Module
27
2-Port 10 Gigabit Ethernet SFP+ Interface Module 28
1-Port 100 Gigabit Ethernet Interface Module (1x100GE) 29
2-Port 40 Gigabit Ethernet QSFP Interface Module (2x40GE) 29
8/16-Port 1 Gigabit Ethernet (SFP / SFP) + 1-port 10 Gigabit Ethernet (SFP+) / 2-port 1 Gigabit
Ethernet (CSFP) Interface Module 30
16-Port T1/E1 Interface Module 31
32-Port T1/E1 Interface Module 31
8-port T1/E1 Interface Module 32
48-Port T1/E1 CEM Interface Module 33
48-Port T3/E3 CEM Interface Module 33
4-Port OC3/STM-1 (OC-3) or 1-port OC12/STM-4 (OC-12) Interface Module 34
1-port OC-48/STM-16 or 4-port OC-12/OC-3 / STM-1/STM-4 + 12-Port T1/E1 + 4-Port T3/E3
CEM Interface Module 35
1-Port OC-192 or 8-Port Low Rate CEM Interface Module (10G HO / 10G LO) 36
14-Port Serial Interface Module 38
6-Port E and M Interface Module 39
4-Port C37.94 Interface Module 40
Blank Deflector (A900-IMA-BLNK-DEF) 40
Maximum Operating Ambient Temperature Support for RSP3 Modules 40
Example: Configuration with A900-RSP3-200-S with Blank Deflector (A900-IMA-BLNK-DEF)
42
Temperature Sensor 42
Temperature Sensors on the A900 RSP1 and A900 RSP2 modules 42
Temperature Sensors on the A900 RSP3 modules 42
Serial Number Label Location 42
Patch Panels 43
Interface Numbering 44
Regulatory Compliance 46
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CHAPTER 2
Preparing for Installation 47
Safety Guidelines 47
Standard Warning Statements 47
Safety Guidelines for Personal Safety and Equipment Protection 50
Safety Precautions for Module Installation and Removal 50
Safety with Electricity 51
Power Supply Considerations 56
Preventing ESD Damage 56
Site Planning 57
General Precautions 57
Site Planning Checklist 57
Site Selection Guidelines 58
Environmental Requirements 58
Physical Characteristics 58
Air Flow Guidelines 58
Air Flow Guidelines for Enclosed Rack Installation 59
Floor Loading Considerations 60
Site Power Guidelines 60
Electrical Circuit Requirements 62
Site Cabling Guidelines 62
Asynchronous Terminal Connections 63
Interference Considerations 63
Rack-Mounting Guidelines 64
Precautions for Rack-Mounting 64
Rack Selection Guidelines 64
Equipment Rack Guidelines 65
Installation Checklist 66
Creating a Site Log 66
Receiving the Cisco ASR 903 Router 67
Chassis-Lifting Guidelines 67
Tools and Equipment 68
Unpacking and Verifying the Shipped Contents 69
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CHAPTER 3
Installing the Cisco ASR 903 Router 71
Prerequisites 71
Installing the Router in a Rack 71
Installing the Chassis Brackets 71
Installing the Router Chassis in the Rack 72
Installing Plenum A903-F2B-AIR-U Assembly and Chassis in the Rack 75
Installing the Chassis in the Air Plenum 82
Attaching the Cable Management Brackets 82
Installing the Chassis Ground Connection 83
Installing the Fan Tray 86
Installing the Dust Filter 86
Removing the Dust Filter 87
Dust Filter Maintenance 87
Removing and Replacing the Fan Tray 87
RSP Installation 89
Installing an RSP Module 89
Removing an RSP Module 90
Hot-Swapping an RSP Module 91
Interface Module Installation 92
Installing an Interface Module 92
Removing an Interface Module 93
Hot-Swapping an Interface Module 93
Swapping of Interface Modules 94
Installing the Power Supply 96
Preventing Power Loss 97
Power Connection Guidelines 97
Guidelines for DC-Powered Systems 97
Installing the DC Power Supply 98
Installing the DC Power Supply Module 98
Connecting DC Power Supply Unit (A900-PWR900-D2) 99
Activating the DC Power Supply 100
Removing and Replacing the DC Power Supply 101
Installing the AC power Supply 102
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Installing the AC Power Supply Module for A900-PWR550-A (550 W) and A900-PWR1200-A
(1200 W) 102
Recommended Power Cables 103
Activating the AC Power Supply 105
Removing and Replacing the AC Power Supply 105
Installing Dust Caps 106
Connecting the Cisco ASR 903 Router to the Network 107
Connecting Console Cables 107
Connecting to the Serial Port using Microsoft Windows 107
Connecting to the Console Port using Mac OS X 109
Connecting to the Console Port using Linux 110
Installing the Cisco Microsoft Windows USB Device Driver 110
Uninstalling the Cisco Microsoft Windows USB Driver 112
Connecting to the Auxiliary Port 113
Contents
Connecting a Management Ethernet Cable 114
Installing and Removing SFP and XFP Modules 114
Connecting a USB Flash Device 115
Removing a USB Flash Device 115
Connecting Timing Cables 116
Connecting Cables to the BITS Interface 116
Connecting Cables to a GNSS Interface 116
Connecting a Cable to the GNSS Antenna Interface 117
Connecting Ethernet Cables 118
Connecting Cables to SFP Modules 119
Connecting T1/E1 cables 119
Installing the Cable Connectors 119
T1/E1 Cable Connectors 122
Patch Panel Cabling for Redundancy 122
RJ45 Cable Pinouts 124
Connecting Cables to the Patch Panel 124
Patch Panel Connectors 125
Recommended Patch Panel 125
Installing Patch Panel 126
Installing the 3G Patch Panel 129
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Attaching the 3G Patch Panel Cable Management Brackets 137
Patch Panel Pinout 149
Panel and Bracket 150
Connecting Serial Cables 151
Connecting the Fan Tray Alarm Port 151
Connector and Cable Specifications 152
CHAPTER 4
CHAPTER 5
Cisco ASR 903 Initial Configuration 153
Checking Conditions Prior to System Startup 153
Powering Up the Cisco ASR 903 Router 154
Verifying the Front Panel LEDs 156
Verifying the Hardware Configuration 157
Checking Hardware and Software Compatibility 157
Configuring the Cisco ASR 903 Router at Startup 157
Using the Console Interface 157
Configuring Global Parameters 158
Checking the Running Configuration Settings 159
Saving the Running Configuration to NVRAM 160
Safely Powering Off the Cisco ASR 903 Router 160
Troubleshooting 161
BITS Port Pinout 161
GPS Port Pinout 162
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Time of Day Port Pinout 163
Alarm Port Pinout 164
Console/Aux RJ45 RS232 Serial Port Pinout 164
16 T1/E1 Interface Module Pinout 165
32 T1/E1 Interface Module Pinout 167
8 T1/E1 Interface Module RJ48C Port Pinnouts 170
T1/E1 Port Pinout 171
RJ48 T1/E1 Port Pinouts 171
Serial Cable Pinouts 172
DB-9 Connector Pinouts 172
RJ-45 Connector Pinouts 173
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E and M Interface Module Pinouts 174
Management Ethernet Port Pinout 174
USB Console Port Pinout 175
USB Flash/MEM Port Pinout 176
Fiber-Optic Specifications 176
Cabling Guidelines 176
LED Summary 177
RSP LEDs 177
ASR900-RSP LED 177
A900-RSP2 and A900-RSP3 LED Information 178
Interface Module LEDs 179
OC-3 and OC-192 Interface Module LEDs 180
T1/E1 Interface Module LEDs 180
Contents
APPENDIX A
Serial Interface Module LEDs 183
E and M Interface Module LEDs 184
4-Port C37.94 Interface Module LEDs 185
Power Supply LEDs 185
Fan Tray LEDs 186
Alarm Conditions 187
Site Log and Manufactures 189
Manufactures 190
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CHAPTER 1
Overview
Note
The Cisco ASR 903 Router and the Cisco ASR 903U Router are collectively referred to as the Cisco ASR
903 Router in this document. Any differences between the routers are specifically called out.
The Cisco ASR 903 Router is a fully-featured aggregation platform designed for the cost-effective delivery
of converged mobile and business services. With shallow depth, low power consumption, and an extended
temperature range, this compact 3-rack-unit (RU) router provides high service scale, full redundancy, and
flexible hardware configuration.
The Cisco ASR 903 Router expands the Cisco service provider product portfolio by providing a rich and
scalable feature set of Layer 2 VPN (L2VPN) and Layer 3 VPN (L3VPN) services in a compact package. It
also supports a variety of software features, including Carrier Ethernet features, Timing over Packet, and
pseudowire.
The Cisco ASR 903 Router is positioned as a pre-aggregation router in IP RAN (GSM, UMTS, iMAX, CDMA,
and LTE) networks or an aggregation router in Carrier Ethernet networks.
• Cisco ASR 903 Router Features, on page 1
• Interface Numbering, on page 44
• Regulatory Compliance, on page 46
Cisco ASR 903 Router Features
The Cisco ASR 903 Router has the following hardware features:
• 3-RU modular chassis designed for installation in a 300 mm European Telecommunications Standards
Institute (ETSI) cabinet
• Dedicated slots in the chassis that support the following:
• Up to six interface modules
• Up to two Route Switch Processors (RSP)
• Up to two AC or DC power supply units
• One fan tray
• Network frequency, phase, and time inputs and outputs for network interfaces (SyncE and TDM), BITS,
1 PPS or 10 MHz and Timing over Packet (IEEE 1588-2008)
• Adjustable front and rear rail mounting locations
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Power Supply Features
Overview
• Front panel access to power supplies, fan tray, RSPs, and interface modules
• Online insertion and removal (OIR) of RSP, interface modules, power supplies, and fan tray
• Discrete status LEDs on power supply, interface module, RSP, and fan tray units
• Four alarm dry contact inputs (either normally open or normally closed)
• Environmental monitoring and reporting functions
• LED indicators for critical, major, and minor alarms
• Side-to-side forced air cooling
• Temperature range, see Cisco ASR 900 Series Aggregation Services Routers Data Sheet.
The figure below illustrates the Cisco ASR 903 Router chassis design.
Figure 1: Cisco ASR 903 Router Chassis Design
Interface modules1
RSP unit (with active and standby RSP slots)2
Fan tray3
Redundant power units (two DC power units are shown)4
Power Supply Features
The Cisco ASR 903 Router support AC and DC power supplies. For more information about installing the
Cisco ASR 903 Router power supplies, see the Installing the Power Supply.
To estimate the required power supply, use the Cisco Power Calculator.
The power sections provide more information about the power supply:
Redundancy
The Cisco ASR 903 Router chassis includes a slot for an 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
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Overview
Dying Gasp
supplies or a combination of AC and DC power supply. The Cisco ASR 903 Router supports current sharing
between the power supplies.
A redundant power supply on the Cisco ASR 903 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.
Caution
Dying Gasp
Status LEDs
To comply with IEC 61850-3 (voltage interruptions), redundant power supplies with separately derived power
feeds are required.
The Cisco ASR 903 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.
Note
Continued DC power supply operation may vary for voltages other than +24/-48V.
Note
Dying Gasp is not supported on the ASR 900 RSP3 module for 1200W DC power supply.
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 903 Router, see Troubleshooting.
DC Power Specifications
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—Provides 550 W output power for system 12 V power. Uses a euro-style three-position
terminal block connector.
• A900-PWR550-D-E—Provides 550 W output power for system 12 V power. Uses a T-shaped connector.
Note
The A900-PWR550-D and the A900-PWR550-E power supply can be used with the A900-RSP3C-400-S
RSP modules only if the power consumption is within 550 W. However, A900-PWR1200-D is recommended.
• A900-PWR1200-D—Provides 975 W output power for system 12 V power with the A903-FAN module.
As most of the system configurations using A900-RSP3C-400-S RSP modules require power exceeding
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DC Power Specifications
Overview
550 W, we recommend using the A900-PWR1200-D power supply with A900-RSP3C-400-S RSP
modules.
Figure 2: DC PSU Module (A900-PWR550-D) with Euro-style Connector
—Euro-style connector1
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Overview
DC Power Specifications
Figure 3: DC PSU Module (A900-PWR550-D-E) with T-Shaped Connector
—T-shaped connector1
Table 1: DC Power Supply Specifications (550 W)
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
A900-PWR550-D, A900-PWR550-D-EPart numbers
+24V/-48V or -60V VDCInput power specification
19.2 VDCMinimum input voltage
72 VDCMaximum input voltage
+12 VDCOutput voltage
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DC Power Specifications
Overview
Wire gauge for DC input power connections
Figure 4: DC PSU Module (A900-PWR1200-D)
10 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
Table 2: DC Power Supply Specifications (A900-PWR1200-D)
A900-PWR1200-DPart numbers
48V, GRD, -48VInput power specification
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Overview
AC Power Specifications
-40.8 VDCMinimum input voltage
-72 VDCMaximum input voltage
+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 output power for system 12 V power. Uses an IEC 320 C14 type
15 Amp power receptacle connector,
8–10 AWG minimum for –48/–60 VDC.
Connector accepts 8 AWG maximum.
1200 W
975W with A903-FAN-E
The A900-PWR550-A power supply can be used with the A900-RSP3C-400-S RSP modules only if the power
consumption is within 550 W. However, A900-PWR1200-A is recommended.
Table 3: AC Power Supply Specifications (A900-PWR550-A)
A900-PWR550-APart number
115VAC/ 230VACInput power specification
85/264 VACInput voltage
85 VACMinimum input voltage
264 VACMaximum input voltage
12VMinimum output voltage
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Fan Tray
Overview
12.4VMaximum output voltage
550 WMaximum power output
• A900-PWR1200-A—Provides 975 W output power for system 12 V power with the A903-FAN module.
As most of the system configurations using A900-RSP3C-400-S RSP modules require power exceeding
550 W, we recommend using the A900-PWR1200-A power supply with A900-RSP3C-400-S RSP
modules. See the figure below.
Figure 5: AC Power Supply (A900-PWR1200-A)
Fan Tray
Table 4: AC Power Supply Specifications (A900-PWR1200-A)
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 WMaximum power output
The fan tray has the following hardware features:
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Overview
Fan Tray (A903-FAN)
• It provides side-to-side forced air cooling
• It provides redundant fans
• It is field replaceable
• It contains status LEDs
• It contains an alarm port with four external alarm inputs
The fan tray modules supported on the router are:
• A903-FAN, Figure 1-6
• A903-FAN-E, Figure 1-7
For more information about air flow guidelines, see Air Flow Guidelines . For instructions on how to install
the fan tray, see Installing the Fan Tray . For a summary of the LEDs on the fan tray, see LED Summary.
Note
The show environment command does not display the fan speed of the fan when the A900-RSP1B-55 module
is configured on ASR 903 router.
Fan Tray (A903-FAN)
The Cisco ASR 903 Router uses a modular fan tray that is separate from the power supply. The fan tray
contains twelve fans and provides sufficient capacity to maintain operation indefinitely in the event of an
individual fan failure.
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Fan Tray (A903-FAN-E)
Overview
Figure 6: Cisco ASR 903 Router Fan Tray (A903-FAN)
Fan Tray (A903-FAN-E)
The A903-FAN-E is a fan tray containing twelve (40 x 40 x 20 mm) fans and provides sufficient capacity to
maintain operation 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.
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Overview
Dust Filter (A903-FAN-F)
Figure 7: Cisco ASR 903 Fan Tray with Dust Filter and Dummy Cover (A903-FAN-E)
Dust Filter (A903-FAN-F)
Note
Air Plenum
Note
Dummy cover4LEDs1
Pull tab5Alarm2
—Dust filter3
The dust filter on the fan tray is a quadrafoam 45PPI filter which is 85 percent dust resistant. A dummy cover
(A903-FAN-F-B) secures the dust filter in the chassis.
Use the pull tab provided to easily access the filter.
Air Plenum or air baffle assembly is used 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 air flow front-back pattern
provides a rack installation bay with a cool front zone and hot rear zone. For installing the plenum, see Installing
the Chassis in the Air Plenum.
When the air plenum and the fan filter are installed in the chassis, the system operating temperature is limited
to 55 degrees Celsius.
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RSP Modules
RSP Modules
Overview
The air plenum is available from GAW. To order an air plenum, contact the Sales and Marketing support staff
at GAW (see Manufactures).
The Cisco ASR 903 Router is designed to use up to two RSP modules 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, redundancy, external management, and system status indications on the router.
RSP features include:
• Loading software onto processor-based interface modules
• Redundant RSP management—The RSP manages detection of RSPs, exchange of health and status
information, role negotiation, function for detection, health and status exchange, role negotiation
• Packet processing
• Traffic management, including buffering, queuing, and scheduling, Ethernet MAC functions
• Network clocking functions including phase and time-of-day for BITS, 1 PPS, 10 MHz, and 1588 PTP
clock references.
• Storage of software images, system configuration, OBFL, SysLog
• 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 the
SETS, and for distributing them to downstream PTP clocks
• External management interfaces (RS232 console, management ENET, USB console, USB storage) and
system status LED indicators
Supported RSPs
The Cisco ASR 903 Router supports the following RSPs:
• A900-RSP1A-55—Provides 2 GB of SDRAM, 5 Mb of TCAM memory, 36Mb 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, 128 Gbps aggregate
throughput.
• A900-RSP2A-64—Provides 4 GB double data rate type three (DDR3) memory, 64 Gbps aggregate
throughput.
• A900-RSP3C-400-S—Provides 8 GB of SDRAM and non-volatile memory, 64MB flash memory, 40
Mb of TCAM memory, 400Gbps throughput.
• A900-RSP3C-200-S—Provides 8 GB of SDRAM and non-volatile memory, 64MB flash memory, 20
Mb of TCAM memory, 200Gbps throughput.
The Cisco ASR 903U 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.
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Overview
Note
The supported RSPs have different memory capacities, but they have the same interfaces and functionality.
Supported RSPs
Caution
The SD memory card is not field replaceable. Do not try to remove or replace it.
Figure 8: A900-RSP1 Module
Figure 9: A900-RSP2A-128 Module
SD memory card slot2SD memory card1
Note
Installing a mix of RSP modules in the chassis is not supported.
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A900-RSP1 Supported Interface Modules
The RSPs do not provide external network interfaces for user traffic. All network interfaces are provided via
separate IMs.
Figure 10: A900-RSP3C-400-S RSP Module
Overview
Figure 11: A900-RSP3C-200-S RSP Module
A900-RSP1 Supported Interface Modules
The table below is applicable for A900-RSP1A-55 and A900-RSP1B-55 RSP modules.
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Overview
A900-RSP2 Supported Interface Modules
Table 5: A900-RSP1 Supported Interface Modules and Part Numbers
SlotPart NumberInterface Modules
AllA900-IMA8S8-port Gigabit Ethernet SFP Interface Module (8x1GE)
A900-IMA8T8-port Gigabit Ethernet RJ45 (Copper) Interface Module (8x1GE)
A900-RSP2 Supported Interface Modules
Note
The combination interface modules (A900-IMA8S1Z, A900-IMA8T1Z), and the A900-IMA2Z interface
module are not supported on the A900-RSP1A-55 and A900-RSP1B-55 modules on the Cisco ASR 903
Router.
A900-IMA2Z IM supports SFP+ and XFP on ports 0 and 1. Either SFP+ or XFP can be connected on each
port. If both are connected on the same port, the port will go down.
The combination IMs (A900-IMA8S1Z, A900-IMA8T1Z) are not supported on the A900-RSP2-64 RSP
module on the Cisco ASR 903 Router.
The table below is applicable for A900-RSP2A-128 and A900U-RSP2A-128 RSP modules.
A900-IMA1X1-port 10 Gigabit Ethernet XFP Interface Module (1x10GE)
0-3
AllA900-IMA16D16-port T1/E1 Interface Module
A900-IMASER14A/S14-port Serial Interface Module
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A900-RSP2 Supported Interface Modules
Table 6: A900-RSP2A-128 Supported Interface Modules and Part Numbers
(8x1GE)
10 Gigabit Ethernet (1x10GE)
(8x1GE) + 1-port 10 Gigabit Ethernet Interface Module
(1x10GE)
Overview
SlotPart NumbersSupported Interface Modules
AllA900-IMA8S8-port Gigabit Ethernet SFP Interface Module (8x1GE)
A900-IMA8T8-port Gigabit Ethernet RJ45 (Copper) Interface Module
A900-IMA1X1-port 10 Gigabit Ethernet XFP Interface Module (1x10GE)
A900-IMA16D16-port T1/E1 Interface Module
A900-IMA32D32-port T1/E1 Interface Module
A900-IMA8D8-portT1/E1 Interface Module
A900-IMA8S1ZSFP Combo IM—8-port SFP Gigabit Ethernet (8x1GE) + 1-port
A900-IMA8T1ZCopper Combo IM—8-port 10/100/1000 Gigabit Ethernet
A900-IMA2Z2-port 10 Gigabit Ethernet Interface Module (2x10GE)
A900-IMA6EM6-port E & M Interface Module
A900-IMASER14A/S14-port Serial Interface Module
A900-IMA4C37944-port C37.94 Interface Module
The table below is applicable for A900-RSP2A-64 and A900U-RSP2A-64 RSP modules.
Table 7: A900-RSP2A-64 Supported Interface Modules and Part Numbers
A900-IMA2Z2-port 10 Gigabit Ethernet Interface Module (2x10GE)
SlotPart NumbersSupported Interface Modules
0-2A900-IMA1X1-port 10 Gigabit Ethernet XFP Interface Module (1x10GE)
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A900-RSP3C-400-S Supported Interface Modules
SlotPart NumbersSupported Interface Modules
+ 12-Port T1/E1 + 4-Port T3/E3 CEM Interface Module
1
If OC48 is enabled, then the remaining 3 ports are disabled.
A900-RSP3C-400-S Supported Interface Modules
The table below is applicable for A900-RSP3C-400-S RSP module.
A900-IMA8S8-port Gigabit Ethernet SFP Interface Module (8x1GE)
3-5
A900-IMA8T8-port Gigabit Ethernet RJ45 (Copper) Interface Module (8x1GE)
A900-IMA3G-IMSG1-port OC481/ STM-16 or 4-port OC-12/OC-3 / STM-1/STM-4
A900-IMA16D16-port T1/E1 Interface Module
A900-IMA32D32-port T1/E1 Interface Module
A900-IMA8D8-port T1/E1 Interface Module
A900-IMA6EM6-port E & M Interface Module
A900-IMASER14A/S14-port Serial Interface Module
A900-IMA4C37944-port C37.94 Interface Module
Note
There are certain restrictions in using the interface modules on different slots with RSP3 module. Contact
Cisco Sales/Support for the valid combinations.
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A900-RSP3C-200-S Supported Interface Modules
Table 8: A900-RSP3C-400 Supported Interface Modules and Part Numbers
Interface Module (8x1GE)
(Copper) Interface Module
(8x1GE)
Interface Module (1x10GE)
Gigabit Ethernet (8x1GE) + 1-port
10 Gigabit Ethernet (1x10GE)
10/100/1000 Gigabit Ethernet
(8x1GE) + 1-port 10 Gigabit
Ethernet Interface Module
(1x10GE)
Overview
SlotPart NumbersSupported Interface Modules
AllA900-IMA8S8-port Gigabit Ethernet SFP
A900-IMA8T8-port Gigabit Ethernet RJ45
A900-IMA1X1-port 10 Gigabit Ethernet XFP
A900-IMA8S1ZSFP Combo IM—8-port SFP
A900-IMA8T1ZCopper Combo IM—8-port
Module (2x10GE)
Module (8x10GE)
Interface Module (1x100GE)
Interface Module (2x40GE)
(SFP/SFP) + 1-port 10 Gigabit
Ethernet (SFP+) / 2-port 1 Gigabit
Ethernet (CSFP) Interface Module
8-port Low Rate Interface Module
Module
Module
A900-IMA2Z2-port 10 Gigabit Ethernet Interface
A900-IMA8Z8-port 10 Gigabit Ethernet Interface
A900-IMA1C1-port 100 Gigabit Ethernet
4 or 5
4 or 5A900-IMA2F2-port 40 Gigabit Ethernet QSFP
0,3,4 or 5A900-IMA8CS1Z-M8/16-port 1 Gigabit Ethernet
2,3,4 or 5A900-IMA1Z8S-CX1-port OC-192 Interface module or
AllA900-IMA48D-C48-port T1/E1 CEM Interface
AllA900-IMA48T-C48-port T3/E3 CEM Interface
A900-RSP3C-200-S Supported Interface Modules
The table below is applicable for A900-RSP3C-200-S RSP module.
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Overview
Supported RSP Features
Note
There are certain restrictions in using the interface modules on different slots with RSP3 module. Contact
Cisco Sales/Support for the valid combinations.
Table 9: A900-RSP3C-200 Supported Interface Modules and Part Numbers
A900-IMA8T8-port Gigabit Ethernet RJ45 (Copper) Interface Module (8x1GE)
SlotPart NumbersSupported Interface Modules
AllA900-IMA8S8-port Gigabit Ethernet SFP Interface Module (8x1GE)
Ethernet (1x10GE)
Gigabit Ethernet Interface Module (1x10GE)
Supported RSP Features
The RSP provides the following features on the Cisco router:
• Centralized data plane, timing, and control plane functions for the system
• High-level control of interface modules
• Management functionalities for the router
• Control plane (host) CPU and associated memory in which IOS-XE and platform control software runs
• Nonvolatile memory for storage of software images, configurations, and system files
• Enabling and monitoring the health and presence of fan trays, interface modules, and power supplies
• Field replacement and hot-swap capabilities
A900-IMA1X1-port 10 Gigabit Ethernet XFP Interface Module (1x10GE)
0, 2 or
4
0-4A900-IMA8S1ZSFP Combo IM—8-port SFP Gigabit Ethernet (8x1GE) + 1-port 10 Gigabit
A900-IMA8T1ZCopper Combo IM—8-port 10/100/1000 Gigabit Ethernet (8x1GE) + 1-port 10
A900-IMA2Z2-port 10 Gigabit Ethernet Interface Module (2x10GE)
A900-IMA8Z8-port 10 Gigabit Ethernet Interface Module (8x10GE)
4
4A900-IMA2F2-port 40 Gigabit Ethernet QSFP Interface Module (2x40GE)
RSP Redundancy
Note
The Cisco ASR 903 Router chassis includes two RSP slots to allow for redundant RSPs. When the router uses
redundant RSPs, one RSP operates in the active mode and the other operates in the hot standby mode. Removal
or failure of the active RSP results in an automatic switchover to the standby RSP.
If you are using redundant RSPs, both the RSPs must be of the same type because a mixed configuration of
two different RSP types is not supported.
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Network Timing Interfaces
Network Timing Interfaces
The RSP supports the following network timing interfaces:
• BITS input/output port—RJ48 jack
• 1 PPS input and output—Mini coax connectors
• 2.048 or 10 MHz input and output—Mini coax connectors
• Time of Day (ToD) or 1 PPS input or output port—Shielded RJ45 jack
Network timing interfaces support redundancy in a redundant RSP configuration. Network timing interfaces
on a redundant RSP remain in operation while the RSP is in hot standby mode.
RSP Interfaces
Figure 12: Cisco RSP1 Interfaces Summary
Overview
InterfaceLabel
USB memory port1
USB console port2
Console port3
1 PPS input timing port4
1 PPS output timing port5
10 MHz input timing port6
10 MHz output timing port7
Time of Day (ToD) timing port8
BITS timing port9
Ethernet management port10
Figure 13: Cisco A900-RSP2A Interface Summary
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Overview
RSP Interfaces
InterfaceLabel
USB memory port1
USB console port2
Console port3
1 PPS input timing port4
1 PPS output timing port5
10 MHz input timing port6
10 MHz output timing port7
Time of Day (ToD) timing port8
BITS timing port9
Ethernet management port10
The Cisco A900-RSP2A module has the following front panel interfaces. For information on cable pinout,
see Troubleshooting.
• 1 USB Type-A Connector for USB-flash (Label = “MEM”)
• 1 USB Type-A Connector for alternate console port (Label = “CONSOLE”)
• RJ45 Connecter for Con/Aux (Label = “CONSOLE”)
• RJ48 Jack for BITS interface. (Label = “BITS”)
• RJ48 Jack for Time-of-Day interface. (Label= “TOD”)
• RJ45 Connecter for Con/Aux (Label = “MGMT ENET”)
• 4 Mini-Coax connectors (Label = “1PPS IN”, “1PPS OUT”, “10MHZ IN”, “10MHZ OUT”)
Figure 14: Cisco A900-RSP3C-400-S Interfaces
InterfaceLabel
GNSS module slot (optional)1
USB memory port2
USB console port3
Console port4
1 PPS input timing port5
1 PPS output timing port6
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GNSS Module (A900-CM-GNSS)
Figure 15: Cisco A900-RSP3C-200-S Interfaces
Overview
InterfaceLabel
10 MHz input timing port7
10 MHz output timing port8
Time of Day (ToD) timing port9
BITS timing port10
Ethernet management port11
InterfaceLabel
GNSS module slot (optional)1
USB memory port2
USB console port3
Console port4
1 PPS input timing port5
1 PPS output timing port6
10 MHz input timing port7
10 MHz output timing port8
Time of Day (ToD) timing port9
BITS timing port10
Ethernet management port11
For more information about installing the RSP, see Installing an RSP Module. For more information about
the RSP LEDs, see RSP LEDs.
GNSS Module (A900-CM-GNSS)
The GNSS module is present on the RSP3 modules. It is a pluggable module that allows direct interface with
the external antenna.
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Overview
Note
Using a single GPS antenna input for both RSPs requires usage of external splitters.
GNSS Module RF Input Requirements
Warning
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord. Statement 1023
Note
The GNSS module is not hot swappable.
GNSS Module RF Input Requirements
• The GNSS module requires an active GPS/GNSS antenna with built-in Low-Noise Amplifier (LNA) for
optimal performance. The antenna LNA amplifies the received satellite signals for two purposes:
• Compensation of losses on the cable
• Lifting the signal amplitude in the suitable range for the receiver frontend
The Amplification required is 22dB gain + cable/connector loss + Splitter signal loss.
The recommended range of LNA gain (LNA gain minus all cable and connector losses) at the connector of
the receiver module is 22dB to 30dB with a minimum of 20dB and a maximum of 35dB.
• GNSS module provides 5V to the active antenna through the same RF input.
• Surge requirement:
GNSS modules have built-in ESD protections on all pins, including the RF-input pin. However, additional
surge protection may be required if rooftop antennas are being connected, to meet the regulations and standards
for lightning protection in the countries where the end-product is installed.
A lightning protection must be mounted at the place where the antenna cable enters the building. The primary
lightning protection must be capable of conducting all potentially dangerous electrical energy to PE (Protective
Earth).
Surge arrestors should support DC-pass and suitable for the GPS frequency range (1.575GHz) with low
attenuation.
• Antenna Sky visibility:
GPS signals can only be received on a direct line of sight between antenna and satellite. The antenna should
see as much as possible from the total sky. For proper timing, minimum of four satellites should be locked.
Note
The antenna terminal should be earthed at the building entrance in accordance with the ANSI/NFPA 70, the
National Electrical Code (NEC), in particular Section 820.93, Grounding of Outer Conductive Shield of a
Coaxial Cable.
• Use a passive splitter if more than one GNSS modules are fed from a single antenna.
For information on pinout, see GPS Port Pinout.
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Interface Modules
Interface Modules
The Cisco ASR 903 Router interface modules are a field-replaceable units. In addition to the ports provided
on an RSP, the Cisco ASR 903 Router supports the following interface modules:
Note
For information about supported interface modules, see the Release Notes for the Cisco ASR 903 Series
Aggregation Services Router.
8-Port 1 Gigabit Ethernet SFP Interface Module
The Gigabit Ethernet Small Form-Factor Pluggable (SFP) interface module provides eight Gigabit Ethernet
SFP modules. The figure below shows the 8-port 1 GE Gigabit Ethernet SFP interface module.
Figure 16: 8-port 1 GE Gigabit Ethernet SFP Interface Module
Overview
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing an SFP Gigabit Ethernet module, see the Interface Module Installation.
8-Port 1Gigabit Ethernet RJ45 Interface Module
The 8-port 1 Gigabit Ethernet RJ45 interface module provides eight Gigabit Ethernet copper ports. The figure
below shows the interface module.
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Overview
1-Port 10 Gigabit Ethernet XFP Interface Module
Figure 17: 8-port 1 GE Gigabit Ethernet RJ45 (Copper) Interface Module
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing an 8-port 1 Gigabit Ethernet RJ45 Gigabit Ethernet module, see the
Interface Module Installation.
1-Port 10 Gigabit Ethernet XFP Interface Module
The 10-Port Gigabit Ethernet XFP interface module provides a single port supporting a 10 Gigabit Ethernet
XFP module. The figure below shows the interface module.
Figure 18: 1-port 10 Gigabit Ethernet XFP Interface Module
Note
1-port 10 Gigabit Ethernet interface modules are not supported in slots 4 and 5.
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing a 1-port 10 GE XFP module, see the Interface Module Installation .
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8-port 10 Gigabit Ethernet Interface Module (8x10GE)
8-port 10 Gigabit Ethernet Interface Module (8x10GE)
Figure 19: 8-port 10 Gigabit Ethernet Interface Module
Overview
The high density 8-port 10 Gigabit Ethernet interface module supports eight 10 Gigabit Ethernet ports using
SFP+ transceivers cages on the faceplate.
Note
It does not support XFP transceivers on the ports.
The 8-port 10 Gigabit Ethernet interface module is supported in slot 0 on the router with the A900-RSP3C-200-S
RSP module. Only 6 ports of the 8 are enabled. The ports enabled are 0, 1, 4, 5, 6, and 7.
Use the hw-module subslot command to enable the interface module in slot 0 of the router. Save the
configuration and reload the router to activate the interface module.
To remove the configuration, use no hw-module subslot command.
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing a 8x10GE module, see the Interface Module Installation.
8-Port 1 Gigabit Ethernet SFP with 1-Port 10 Gigabit Ethernet Combination Interface Module
The 8-port 1 Gigabit Ethernet SFP interface module with the 1-port 10 Gigabit Ethernet interface module is
a high density combination interface module. This module supports 8 Gigabit Ethernet SFP ports and 1 10
Gigabit Ethernet SFP+ port.
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Overview
8-Port 1 Gigabit Ethernet + 1-Port 10 Gigabit Ethernet SFP+ Combination Interface Module
Figure 20: 8-port 1 GE SFP + 1-port 10 GE SFP+ Interface Module
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing the 8-port1 SFP GE + 1-port 10 SFP+ Gigabit Ethernet module, see
Interface Module Installation.
8-Port 1 Gigabit Ethernet + 1-Port 10 Gigabit Ethernet SFP+ Combination Interface Module
This 8-port 1 Gigabit Ethernet (RJ45 Copper) interface module with the 1-port 10 Gigabit Ethernet interface
module is a high density combination interface module. This module supports 8 Gigabit Ethernet Copper
ports and 1 10 Gigabit Ethernet SFP+ port.
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2-Port 10 Gigabit Ethernet SFP+ Interface Module
Figure 21: 8-port 1 GE (RJ45) + 1-port 10 GE SFP+ Interface Module
Overview
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing the 8-port 1 10/100/1000 GE (RJ45) + 1-port 10 SFP Gigabit Ethernet
module, see Interface Module Installation.
2-Port 10 Gigabit Ethernet SFP+ Interface Module
The 2-port 10 Gigabit Ethernet interface module provides a dual port supporting a 10 Gigabit Ethernet SFP+
and XFP module.
Figure 22: 2-port10 Gigabit Ethernet Interface Module
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing the 2-port 10 GE SFP Gigabit Ethernet module, see Interface Module
Installation.
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Overview
1-Port 100 Gigabit Ethernet Interface Module (1x100GE)
Figure 23: 1-port 100 Gigabit Ethernet Interface Module
1-Port 100 Gigabit Ethernet Interface Module (1x100GE)
The 1-port 100 Gigabit Ethernet interface module supports one CPAK optics port.
For information on supported CPAK modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing a 1x100GE module, see the Interface Module Installation.
2-Port 40 Gigabit Ethernet QSFP Interface Module (2x40GE)
The dual port 40 Gigabit Ethernet interface module supports the 40 Gigabit Ethernet port. The 40GE interface
is supported using QSFP+ optics. The figure below shows the interface module.
Figure 24: 2-port 40 Gigabit Ethernet Interface Module
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Overview
8/16-Port 1 Gigabit Ethernet (SFP / SFP) + 1-port 10 Gigabit Ethernet (SFP+) / 2-port 1 Gigabit Ethernet (CSFP) Interface Module
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing a 2x40GE module, see the Interface Module Installation.
8/16-Port 1Gigabit Ethernet (SFP / SFP) + 1-port 10 Gigabit Ethernet (SFP+) / 2-port 1 Gigabit Ethernet
(CSFP) Interface Module
The A900-IMA8CS1Z-M interface module has the flexibility to support SFP+/SFP/CSFP on the modules as
mentioned below:
• The 8-port 1 Gigabit Ethernet ports can also be used as 16-port 1 Gigabit Ethernet ports Small Form-Factor
Pluggable (SFP) .
• The 1-port 10 Gigabit Ethernet port can also be used as 2-port 1 Gigabit Ethernet ports with Small
Form-Factor Pluggable (SFP+).
Figure 25: A900-IMA8CS1Z-M Gigabit Ethernet Interface Module
The following modes are supported for the Interface Module, based on slot capacity:
• 8 x 1GigE (SFP) Fully subscribed mode (FS)
• 8 x 1GigE (SFP) + 1 x 10GigE (SFP+) Fully subscribed mode (FS)
• 16 x 1GigE (C-SFP) + 1 x 10GigE (SFP+) Fully subscribed mode (FS)
• 16 or 18 x 1GigE (C-SFP) Oversubscribed mode (OS)
• 16 x 1GigE (C-SFP) + 1 x 10GigE (SFP+) Oversubscribed mode (OS)
• 8 or 9 x 1GigE (SFP) Fully subscribed mode (FS)
• 1 x 10GigE (SFP+) Fully subscribed mode (FS)
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Overview
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information on port numbering, see Configuring 1-port 10 Gigabit Ethernet (1 X SFP+) / 1-port
Gigabit Ethernet (1 X SFP) / 2-port Gigabit Ethernet (1 X CSFP) and 16-port Gigabit Ethernet (8 X CSFP) /
8-port Gigabit Ethernet (8 X SFP) Interface Module chapter of the Cisco ASR 900 Router Series Configuration
Guide, Cisco IOS XE Everest 16.6.1.
16-Port T1/E1 Interface Module
The 16-port T1/E1 interface module provides connectivity for up to 16 T1/E1 ports through a 100-pin Amplimite
connector. The 16-port T1/E1 interface module requires the use of a patch panel to provide RJ48 (T1) or BNC
(E1) connectors. The figure below shows the interface module.
Figure 26: 16-port T1/E1 Interface Module
16-Port T1/E1 Interface Module
For more information about installing a 16-port T1/E1 interface module, see the Interface Module Installation.
32-Port T1/E1 Interface Module
The 32-port T1/E1 interface module provides connectivity for up to 32 T1/E1 ports through two 68-pin Tyco
connectors. It is supported on the A900-RSP2A-64 module in slots 3, 4 and 5, and on the A900-RSP2A-128
on all slots.
The 32-port T1/E1 interface module requires the use of a patch panel to provide RJ48 or BNC connectors.
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8-port T1/E1 Interface Module
Figure 27: 32-portT1/E1 Interface Module
Overview
For more information about installing a 32-portT1/E1 interface module, see the Interface Module Installation.
8-port T1/E1 Interface Module
The 8-port T1/E1 interface module provides connectivity for up to 8 T1/E1 ports through RJ48C port connectors
on the front panel. The figure below shows the interface module. For information on supported slots, see
Supported RSPs.
Figure 28: 8-portT1/E1 Interface Module
For more information about installing a 8-port T1/E1 interface module, see the Interface Module Installation.
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Overview
48-Port T1/E1 CEM Interface Module
The 48-port T1/E1 interface module provides connectivity for up to 48 T1/E1 ports through 3 high-density
connectors on the front panel (as shown in figure 48-port T1/E1 Faceplate). Each port supports 16 TX and
RX ports. For information on LEDs, see Interface Module LEDs.
Figure 29: 48-port T1/E1 Interface Module
48-Port T1/E1 CEM Interface Module
Figure 30: 48-port T1/E1 Faceplate
For more information about installing an optical interface module, see Interface Module Installation.
48-Port T3/E3 CEM Interface Module
The 48-port T3/E3 interface module provides connectivity for up to 48 T3/E3 ports through 3 high-density
connectors on the front panel (see the figure below ). Each port supports 16 TX and RX ports. For information
on LEDs, see Interface Module LEDs.
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4-Port OC3/STM-1 (OC-3) or 1-port OC12/STM-4 (OC-12) Interface Module
Figure 31: 48 x T3/E3 Interface Module
Figure 32: 48-port T3/E3 Faceplate
Overview
For more information about installing an optical interface module, see Interface Module Installation.
4-Port OC3/STM-1 (OC-3) or 1-port OC12/STM-4 (OC-12) Interface Module
The 4-port OC3/STM-1 (OC-3) or 1-port OC12/STM-4 (OC-12) interface module can operate as up to four
STM-1 interfaces. The figure below shows the interface module.
Note
The optical interface module is designed for OC-3 and OC-12 traffic. OC-12 is only supported on the RSP1
module on the router.
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Overview
1-port OC-48/STM-16 or 4-port OC-12/OC-3 / STM-1/STM-4 + 12-Port T1/E1 + 4-Port T3/E3 CEM Interface Module
Figure 33: 4-port OC-3 Interface Module
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing an optical interface module, see Interface Module Installation.
1-port OC-48/STM-16 or 4-port OC-12/OC-3 / STM-1/STM-4 + 12-Port T1/E1 + 4-Port T3/E3 CEM
Interface Module
The A900-IMA3G-IMSG interface module supports:
• 12xDS1/E1 + 4xDS3/E3 interface over the high-density port.
• 1xOC48/12/3 Gigabit interface and 3xOC12/3 Gigabit interface.
Note
If OC48 is enabled, then the remaining 3 ports are disabled.
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1-Port OC-192 or 8-Port Low Rate CEM Interface Module (10G HO / 10G LO)
Figure 34: A900-IMA3G-IMSG Gigabit Ethernet Interface Module
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
Overview
For more information about installing a T1/E1 or T3/E3 interface module, see the Interface Module Installation.
1-Port OC-192 or 8-Port Low Rate CEM Interface Module (10G HO / 10G LO)
The 1-port OC-192 interface module with 8-port low rate CEM interface module is a high density combination
interface module. This module supports 1 OC-192 port or 8 low rate CEM or 1 Gigabit Ethernet port.
Figure 35: OC-192 Interface Module
Figure 36: OC-192 Interface Module Faceplate
The OC-192 interface modules are supported on slots 2, 3, 4 and 5 on the chassis.
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Overview
Port Restrictions
Port Restrictions
Ports on the OC-192 are numbered from 1 to 8.
• Ports 0 to 7 are multi-rate ports, that support OC-3, OC-12, OC-48, Fast Ethernet interfaces, and the 1
Gigabit Ethernet interfaces.
• Port 8 is the 10 Gigabit Ethernet port that supports the OC-192 interfaces.
• The SFP+ port configuration is supported only on OC-192 interfaces port. If this port is enabled, other
SFP ports cannot be used (see the table given in Port Combinations Usage Guidelines section).
• Each SFP port can be configured for SONET or Ethernet.
• SFP ports configuration parameter, (see the table given in Port Combinations Usage Guidelines section):
• Maximum of 4 x OC-48 interfaces are supported per interface module
• For each OC-48 port enabled, neighboring SFP ports cannot be configured
• OC-3 and OC-12 port configuration is supported on all ports simultaneously
• 1 Gigabit Ethernet port configuration is supported on all ports simultaneously
Note
1 Gigabit Ethernet port configuration is not supported.
• Seamless migration from SONET to 1 Gigabit Ethernet interfaces is supported on all SFP ports
Port Combinations Usage Guidelines
Port
Port
8
Port
OrSFP+
OC-192SFP+
Port
Port
8
—7SPF
Port
OrSFP+
—SFP+
Port
Port
8
OC-487SPF
7SPF
Port
—SFP+
OC-3
OrSFP+
Port
—SFP+
Port
8
1 GE7SPF
Port
SFP+
1 GE6OC-126—6—6
1 GE5OC-125OC-485—5
1 GE4OC-34—4—4
3OC-483—3
1 GE3OC-3
1 GE2OC-122—2—2
1 GE1OC-121OC-481—1
1 GE0OC-30—0—0
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing an optical interface module, see Interface Module Installation.
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14-Port Serial Interface Module
14-Port Serial Interface Module
The Cisco (A900-IMASER14A/S) is a 14-port serial interface module for the Cisco ASR 903 router. The
Cisco ASR 903 Router module has the following interfaces:
• 12-in-1 Connector (6)-Supports synchronous and asynchronous RS-232 interfaces using EIA/TIA-232
DB-25 connectors
• 68-Pin Connector (2)-Supports up to 8 RS-232 interfaces in full or half duplex mode using 4 RS-232
connectors (DB-25, DB-9, or RJ-45)
Figure 37: Serial Interface Module
Overview
Figure 38: 14-port Serial Interfacce Module Front Panel
68-Pin Connector (2)2Captive screws (2)1
Status (STAT) LED412-in-1 Connector (6)3
6Power (PWR) LED5
LEDs-The LEDs are as follows:
• J0-J3 and J4-J7-Indicate the
function of the 68-pin connectors
• J8-J13-Indicate the status of the
12-in-1 connectors
For more information about using the LEDs to troubleshoot the Cisco ASR 903 Router, see LED Summary
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Overview
Supported Standards
Supported Standards
The 14-port serial interface module supports the following standards:
DefinitionStandard
IEEE 1613 2009
IEC 61850-3
IEC 61000-6-5:2001
The serial interface module supports several cable types. For more information, see Connecting Serial Cables.
6-Port E and M Interface Module
The Cisco (A900-IMA6EM) is a 6-port Ear and Mouth (E&M) interface module for the Cisco ASR 903 router.
The interface module provides the router with connectivity to tele-protection equipments. The front panel of
the module consists of:
• six port RJ45 connectors
• two LED that display Power and Status
• one LED per RJ45 port
IEEE Standard for Environmental and Testing Requirements for
Communications Networking Devices in Electric Power Substations
IEC standard specifying general requirements for substation automation
systems (SAS) communications and related system requirements
IEC standard for substation environmental conditionsIEC 60870-2-1:1995
IEC standard for substation environmental conditionsIEC 60870-2-2:1996
IEC standard defining immunity for power station and substation
environments
Figure 39: E and M Interface Module
For information on LEDs, see E and M Interface Module LEDs.
For more information about installing the module, see the Interface Module Installation.
For more information, see Connecting Serial Cables and Serial Cable Pinouts.
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4-Port C37.94 Interface Module
4-Port C37.94 Interface Module
The Cisco (A900-IMA4C3794) is a 4-port interface module that provides IEEE C37.94-2002 compliant Nx64
kbps optical interface ports to the router. The interfaces support 50/62.5 multimode fiber at 850nm. The
physical interfaces use 2.5mm ST connectors.
The front panel of the module consists of four ports of IEEE C37.94 interfaces.
Figure 40: C37.94 Interface Module
Overview
Figure 41: C37.94 Interface Module Front Panel
For information on LEDs, see 4-Port C37.94 Interface Module LEDs.
For more information about installing the module, see Interface Module Installation.
Blank Deflector (A900-IMA-BLNK-DEF)
The A900-IMA-BLNK-DEF is a special type of blank filler plate that can be used in empty interface module
slots. In addition to just acting as a filler for the empty slots in the router, this blank deflects additional air
towards the interface modules in the slot below it, thereby enhancing the cooling for the interface module.
Caution
The A900-IMA-BLNK-DEF is module should not be used in slot 0 in the Cisco ASR 903 Router.
For slot 0, always use the filler blank (A900-IMA-BLANK) when a blank filler needs to be used.
For more information on operating temperature, see Example: Configuration with A900-RSP3-200-S with
Blank Deflector (A900-IMA-BLNK-DEF).
Maximum Operating Ambient Temperature Support for RSP3 Modules
The router supports multiple fan trays with different cooling capacities. The maximum operating temperature
of the router using the RSP3 modules, depends on the fan tray and the interface modules used in the router.
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Overview
Maximum Operating Ambient Temperature Support for RSP3 Modules
The tables below provide and overview of the operating ambient temperature limits for different fan tray and
interface module combinations. These values are specified for side-to-side airflow configuration.
Note
The temperature range could further be restricted by the optical modules are used in the router.
Note
If you remove the fan tray from the system, the node thermal shut down is based on ASIC temperature and
not based on the timer value, from release 16.6.x and later.
Table 10: Operating Temperature for A900-RSP3C-400-S Module
Operating Temperature Limit (°C)Fan TrayInterface Modules
–40 to 55A903-FANA900-IMA1X
A900-IMA8T
–40 to 50A903-FAN-E
A900-IMA8S
A900-IMA2Z
A900-IMA8T1Z
A900-IMA8S1Z
A903-FANA900-IMA8Z
A900-IMA2F
A903-FANA900-IMA1C
–40 to 55
–40 to 50A903-FAN-E
–40 to 45
–40 to 40A903-FAN-E
Table 11: Operating Temperature for A900-RSP3C-200-S Module
Operating Temperature Limit (°C)Fan TrayInterface Modules
2
A900-IMA8T
A903-FANA900-IMA1X
–40 to 65
–40 to 65 1A903-FAN-E
A900-IMA8S
A900-IMA2Z
A900-IMA8T1Z
A900-IMA8S1Z
A903-FANA900-IMA8Z
A900-IMA2F
2
Maximum operating temperature of 65°C is supported only with EXT/RGD/IND optical modules.
A903-FAN-E
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–40 to 65 1
–40 to 55
3
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Overview
Example: Configuration with A900-RSP3-200-S with Blank Deflector (A900-IMA-BLNK-DEF)
3
A900-IMA8Z supports a maximum temperature of 65°C with A903-FAN or A903-FAN-E if
A900-IMA-BLNK-DEF is used in the slot above the interface module.
Example: Configuration with A900-RSP3-200-S with Blank Deflector (A900-IMA-BLNK-DEF)
In the below configuration, the overall operating temperature of the router is enhanced by using
A900-IMA-BLNK-DEF in the slots above A900-IMA8Z interface module. The maximum operating temperature
of the router is enhanced from 55°C to 65°C by using A900-IMA-BLNK-DEF in slots 1 and 5 (above
A900-IMA8Z).
Note
To support 65°C ambient temperature, EXT optics need to be used for 10G ports.
A903-FAN-EA900-RSP3C-200A900-IMA-BLNK-DEF
A900-IMA8Z
A900-IMA-8T1Z
A900-IMA-8T1Z
A900-IMA-BLNK-DEF
A900-IMA8Z
A900-RSP3C-200
PSUPSU
Temperature Sensor
The Cisco ASR 903 Router has a temperature sensor to detect overtemperature conditions inside the chassis.
Temperature Sensors on the A900 RSP1 and A900 RSP2 modules
The overtemperature detection trips at 75 degrees C +/- 5% with the ambient (inlet) trip point at 67 degrees
C. This condition is reported to the processor as an interrupt, and the software takes action to generate the
appropriate alarms.
Temperature Sensors on the A900 RSP3 modules
The maximum operating temperature of RSP3 module and the interface modules is less than the maximum
operating temperature of the Cisco ASR 903 router. The IOS software decides the appropriate temperature
thresholds to generate warnings, and shuts down the system when abnormally high temperature is detected.
For more information, see Maximum Operating Ambient Temperature Support for RSP3 Modules.
Serial Number Label Location
The figure below shows the serial number label location on the Cisco ASR 903 Router.
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Overview
Patch Panels
Figure 42: Cisco ASR 903 Router Serial Number Location
Patch Panels
The Cisco NCS 4206 has patch panels modules that provide interconnections with the interface modules.
The following table shows different types of patch panel:
Table 12: T1/E1 Patch Panel
DescriptionPatch Panel
48X75 ohm E1/DS1 termination, through DIN 1.0/2.3 connectorsPANEL-48-1-DIN
48X120 ohm E1/110 ohm DS1 termination, through RJ 48C connectorPANEL-48-1-RJ48
48X120 ohm E1/110 ohm DS1 termination, through 4xAMP 64-pinPANEL-48-1-AMP64
Table 13: T3/E3 Patch Panel
DescriptionPatch Panel
48X75 ohm E3/DS3 termination, through DIN 1.0/2.3 connectorsPANEL-48-3-DIN
48X75 ohm E3/DS3 termination, through HDBNC connectorsPANEL-48-3-HDBNC
The interface modules, 48 X T1/E1 TDM interface module and 48 X T3/E3 TDM interface module supports
a maximum of 48 TDM ports. These ports are available on the interface module through three
Very-High-Density Cable Interconnect (VHDCI) connectors. The patch panels listed above make these 48
ports available to the customer.
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Interface Numbering
Overview
Figure 43: Patch Panel DSX Interface View
Figure 44: Patch Panel DSX Interface View
Figure 45: Patch Panel System Interface View
Interface Numbering
The Cisco ASR 903 Router chassis includes:
• Six interface module slots
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Overview
Interface Numbering
• Two RSP module slots
• Two power supply slots
• One fan tray slot
Each network interface on a Cisco ASR 903 Router is identified by a slot number and a port number.
The figure below shows interface numbering in a Cisco ASR 903 Router.
Figure 46: Cisco ASR 903 Router Slot Numbers
RSP slot 11
RSP slot 02
Fan tray slot3
Power supply slot 14
Power supply slot 05
Interface module slot 06
Interface module slot 17
Interface module slot 28
Interface module slot 39
Interface module slot 410
Interface module slot 511
Following is an explanation of the slot or port numbering:
• The numbering format is Interface type slot or interface number. Interface (port) numbers begin at
logical 0 for each interface type.
• Interface module slots are numbered from bottom to top, with logical interfaces on each module numbered
from left to right. Interfaces are hard-wired. Therefore, port 0 is always logical interface 0/0, port 1 is
always logical interface 0/1, and so on.
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Regulatory Compliance
The input parameter for the following commands changes based on the active RSP slot number. The active
RSP in slot 0 is refereed to as "0/ slot_num", else if the active RSP is slot 1, it is refereed as 1/"slot_num".
The output for the command is displayed accordingly:
• show diag all eeprom detail
• show platform software trace message iomd
• show platform software agent iomd
• show platform software peer shell-manager brief
• show platform software peer chassis-manager
• show platform software memory iomd
• set platform software trace iomd
Regulatory Compliance
For regulatory compliance and safety information, see the Product Documentation and Compliance for the
Cisco ASR 900 Series Aggregation Services Routers document.
Overview
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Preparing for Installation
This chapter describes how to prepare for the installation of the Cisco ASR 903 Router at your site.
• Safety Guidelines, on page 47
• Site Planning, on page 57
• Receiving the Cisco ASR 903 Router, on page 67
Safety Guidelines
Before you begin the installation of the Cisco ASR 903 Router, review the safety guidelines in this chapter
to avoid injuring yourself or damaging the equipment.
In addition, before replacing, configuring, or maintaining the Cisco ASR 903 Router, review the safety
warnings listed in Regulatory Compliance and Safety Information for the Cisco ASR 903 Router.
Standard Warning Statements
To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and
Safety Information document that accompanied this device.
CHAPTER 2
Warning
Warning
Warning
The appliance must be connected to a grounded outlet. Statement 0414
To avoid or reduce the risk of personal injury, do not use the product if the product has been exposed to
irregular environmental conditions, if the product has been misused or if parts of the product have been
damaged. Consult qualified service personnel. Never try to service the product yourself. Statement 0416
To reduce the risk of shock, fire or personal injury, do not place power cables in areas where they may be
walked on or damaged by items placed upon or against it. Statement 0417
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Standard Warning Statements
Preparing for Installation
Warning
Warning
Warning
Warning
This product is intended for use in a normal environment based on the standard IEC 60950-1. Do not use the
product in vehicles, on board ships, in aircrafts or in medical applications with physical connection to the
patient, nor in environments with exposure to moisture, dust, vibration or ingress of water. Statement 0418
Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement
1001
Read the installation instructions before connecting the system to the power source. Statement 1004
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to
ensure that the system remains stable. The following guidelines are provided to ensure your safety: This unit
should be mounted at the bottom of the rack if it is the only unit in the rack. When mounting this unit in a
partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of
the rack. If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack. Statement 1006
Warning
Warning
Warning
Warning
Warning
This unit is intended for installation in restricted access areas. A restricted access area can be accessed only
through the use of a special tool, lock and key, or other means of security. Statement 1017
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord. Statement 1023
If the symbol of suitability with an overlaid cross appears above a port, you must not connect the port to a
public network that follows the European Union standards. Connecting the port to this type of public network
can cause severe injury or damage your router. Statement 1031
Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink or laundry tub, in
a wet basement, or near a swimming pool. Statement 1035
Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
Statement 1036
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Preparing for Installation
Standard Warning Statements
Warning
Warning
Warning
Warning
Warning
Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the
network interface. Statement 1037
Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk
of electric shock from lightning. Statement 1038
To report a gas leak, do not use a telephone in the vicinity of the leak. Statement 1039
Ultimate disposal of this product should be handled according to all national laws and regulations. Statement
1040
Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network
voltages. Statement 1041
Warning
Warning
Warning
Warning
Warning
To prevent the system from overheating, do not operate it in an area that exceeds the maximum recommended
ambient temperature of 149°F (65°C). Statement 1047
The chassis should be mounted on a rack that is permanently affixed to the building. Statement 1049
IMPORTANT SAFETY INSTRUCTIONS: This warning symbol means danger. You are in a situation that
could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical
circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided
at the end of each warning to locate its translation in the translated safety warnings that accompanied this
device. Statement 1071
No user-serviceable parts inside. Do not open. Statement 1073
This is a Class A Device and is registered for EMC requirements for industrial use. The seller or buyer should
be aware of this. If this type was sold or purchased by mistake, it should be replaced with a residential-use
type. Statement 294
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Safety Guidelines for Personal Safety and Equipment Protection
Preparing for Installation
Warning
Warning
This is a class A product. In a domestic environment this product may cause radio interference in which case
the user may be required to take adequate measures. Statement 340
This equipment is in compliance with the essential requirements and other relevant provisions of Directive
1999/5/EC.
Safety Guidelines for Personal Safety and Equipment Protection
The following guidelines help ensure your safety and protect the equipment. This list does not include all the
potentially hazardous situations. Therefore, you should be on alert.
• Before moving the system, always disconnect all the power cords and interface cables.
• Never assume that power is disconnected from a circuit; always check.
• Before and after installation, keep the chassis area clear and dust-free.
• Keep tools and assembly components away from walk areas where you or others could trip over them.
• Do not work alone if potentially hazardous conditions exist.
• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
• Do not wear loose clothing that may get caught in the chassis.
• When working under conditions that may be hazardous to your eyes, wear safety glasses.
Safety Precautions for Module Installation and Removal
Be sure to observe the following safety precautions when you work on the router.
To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and
Safety Information document that accompanied this device.
Warning
Warning
Warning
Warning
For connections outside the building where the equipment is installed, the following ports must be connected
through an approved network termination unit with integral circuit protection. Statement 1044
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or
view directly with optical instruments. Statement 1051
Class 1M laser radiation when open. Do not view directly with optical instruments. Statement 1053
Class 1 (CDRH) and Class 1M (IEC) laser products. Statement 1055
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Preparing for Installation
Safety with Electricity
Warning
Warning
Warning
Warning
Warning
Do not stare into the beam or view it directly with optical instruments. Statement 1011
Invisible laser radiation present. Statement 1016
Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF or ON.
To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end
away from the unit first. Statement 1026
Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages
and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other
equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all
cards, faceplates, front covers, and rear covers are in place. Statement 1029
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when
servicing. Statement 1034
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or
view directly with optical instruments. Statement 1051
Safety with Electricity
Warning
Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect
the power at the circuit breaker on DC units. Statement 12
Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces,
and watches). Metal objects will heat up when connected to power and ground and can cause serious burns
or weld the metal object to the terminals. Statement 43
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Safety with Electricity
Preparing for Installation
Warning
Warning
Warning
Warning
To prevent accidental discharge in the event of a power line cross, route on-premise wiring away from power
cables and off-premise wiring, or use a grounded shield to separate the on-premise wiring from the power
cables and off-premise wiring. A power line cross is an event, such as a lightning strike, that causes a power
surge. Off-premise wiring is designed to withstand power line crosses. On-premise wiring is protected from
power line crosses by a device that provides overcurrent and overvoltage protection. Nevertheless, if the
on-premise wiring is in close proximity to or not shielded from, the off-premise wiring or power cable during
a lightning strike or power surge, the on-premise wiring can carry a dangerous discharge to the attached
interface, equipment, or nearby personnel. Statement 338
High leakage current – earth connection essential before connection to system power supply. Statement 342
Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement
1001
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
Warning
Warning
Warning
Read the installation instructions before connecting the system to the power source. Statement 1004
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated for 550 W DC Power Supply (PID A900-PWR550-D and A900-PWR550-D-E):
For a -48/-60 VDC installation, the wire shall be 12 AWG minimum with a 20 A circuit breaker. For a 24
VDC installation, the wire shall be 8 AWG minimum with a 40 A branch circuit breaker. Statement 1005
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated for 1200 W DC Power Supply (PID A900-PWR1200-D): For a -48/-60 VDC
installation, the wire shall be 10 AWG minimum with a 50 A circuit breaker. Statement 1005
This product relies on the building’s installation for short-circuit (overcurrent) protection. For an AC installation,
ensure that the branch circuit breaker is rated a maximum 20A.
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Preparing for Installation
Safety with Electricity
Warning
Warning
Warning
Warning
Warning
There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same
or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s
instructions. Statement 1015
This unit is intended for installation in restricted access areas. A restricted access area can be accessed only
through the use of a special tool, lock and key, or other means of security. Statement 1017
Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018
The plug-socket combination must be accessible at all times, because it serves as the main disconnecting
device. Statement 1019
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage
(TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and
WAN ports both use RJ45 connectors. Use caution when connecting cables. Statement 1021
Warning
Warning
Warning
Warning
Warning
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 1022
To reduce the risk of fire, use only 26 AWG or larger telecommunication line cord. Statement 1023
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available. Statement 1024
Use copper conductors only. Statement 1025
Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF or ON.
To avoid c shock, use caution when working near WAN ports. When detaching cables, detach the end away
from the unit first. Statement 1026
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Safety with Electricity
Preparing for Installation
Warning
Warning
Warning
Warning
Warning
This unit might have more than one power supply connection. All connections must be removed to de-energize
the unit. Statement 1028
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles
on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the
weight of the unit. Statement 1032
Connect the unit only to DC power source that complies with the safety extra-low voltage (SELV) requirements
in IEC 60950 based safety standards. Statement 1033
Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink or laundry tub, in
a wet basement, or near a swimming pool. Statement 1035
Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
Statement 1036
Warning
Warning
Warning
Warning
Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network
voltages. Statement 1041
This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260. Incorrectly
connecting this equipment to a general-purpose outlet could be hazardous. The telecommunications lines must
be disconnected 1) before unplugging the main power connector or 2) while the housing is open, or both.
Statement 1043
This product requires short-circuit (overturned) protection, to be provided as part of the building installation.
Install only in accordance with national and local wiring regulations. Statement 1045
When installing or replacing the unit, the ground connection must always be made first and disconnected last.
Statement 1046
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Preparing for Installation
Safety with Electricity
Warning
Warning
Warning
Warning
When you connect or disconnect the power and relay connector with power applied, an electrical arc can
occur. This could cause an explosion in hazardous area installations. Be sure that power is removed from the
switch and alarm circuit. Be sure that power cannot be accidentally turned on or verify that the area is
nonhazardous before proceeding. Failure to securely tighten the power and relay connector captive screws
can result in an electrical arc if the connector is accidentally removed. Statement 1058
Failure to securely tighten the power and relay connector captive screws can result in an electrical arc if the
connector is accidentally removed. Statement 397
This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal
use.
If you connect or disconnect the console cable with power applied to the switch or any device on the network,
an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that
power is removed or the area is nonhazardous before proceeding. To verify switch operation, perform POST
on the switch in a nonhazardous location before installation. Statement 1065
Warning
Warning
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Hazardous voltage or energy may be present on DC power terminals. Always replace cover when terminals
are not in service. Be sure uninsulated conductors are not accessible when cover is in place. Statement 1075
When working on equipment powered by electricity, follow these guidelines:
• Locate the room’s emergency power-off switch. If an electrical accident occurs, you will be able to
quickly turn off the power.
• Before working on the system, turn off the DC main circuit breaker and disconnect the power terminal
block cable.
• Before doing the following, disconnect all power:
• Working on or near power supplies
• Installing or removing a router chassis or network processor module
• Performing most hardware upgrades
• Never install equipment that appears damaged.
• Carefully examine your work area for possible hazards, such as moist floors, ungrounded power extension
cables, and missing safety grounds.
• Never assume that power is disconnected from a circuit; always check.
• Never perform any action that creates a potential hazard to people or makes the equipment unsafe.
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Power Supply Considerations
In addition, use the following guidelines when working with any equipment that is disconnected from a power
source, but still connected to telephone wiring or network cabling:
Preparing for Installation
• If an electrical accident occurs, proceed as follows:
• Use caution, and do not become a victim yourself.
• Turn off power to the router.
• If possible, send another person to get medical aid. Otherwise, determine the condition of the victim,
and then call for help.
• Determine whether the person needs rescue breathing or external cardiac compressions; then take
appropriate action.
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for it.
• Never touch uninsulated telephone wires or terminals unless the telephone line is disconnected at the
network interface.
• When installing or modifying telephone lines, use caution.
Power Supply Considerations
Check the power at your site to ensure that you are receiving clean power (free of spikes and noise). Install a
power conditioner if necessary.
Warning
This equipment is designed for connection to TN and IT power systems. Statement 16
Preventing ESD Damage
Warning
This equipment needs to be grounded. Use a green and yellow 6 AWG ground wire to connect the host to
earth ground during normal use. Statement 383
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD can occur when
electronic printed circuit cards are improperly handled and can cause complete or intermittent failures. When
removing and replacing modules, always follow ESD prevention procedures:
• Ensure that the router chassis is electrically connected to earth ground.
• Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. To channel unwanted
ESD voltages safely to ground, connect the clip to an unpainted surface of the chassis frame. To guard
against ESD damage and shocks, the wrist strap and cord must operate effectively.
• If no wrist strap is available, ground yourself by touching a metal part of the chassis.
• When installing a component, use any available ejector levers or captive installation screws to properly
seat the bus connectors in the backplane or midplane. These devices prevent accidental removal, provide
proper grounding for the system, and help to ensure that bus connectors are properly seated.
• When removing a component, use available ejector levers or captive installation screws, if any, to release
the bus connectors from the backplane or midplane.
• Handle components by their handles or edges only; do not touch the printed circuit boards or connectors.
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Preparing for Installation
• Place a removed component board side up on an antistatic surface or in a static-shielding container. If
you plan to return the component to the factory, immediately place it in a static-shielding container.
• Avoid contact between the printed circuit boards and clothing. The wrist strap only protects components
from ESD voltages on the body; ESD voltages on clothing can still cause damage.
• Never attempt to remove the printed circuit board from the metal carrier.
Note
For the safety of your equipment, periodically check the resistance value of the antistatic wrist strap. It should
be between 1 and 10 Mohm.
Site Planning
The following sections describe how to plan for the installation of the Cisco ASR 903 Router:
General Precautions
Site Planning
Observe the following general precautions when using and working with your Cisco ASR 903 Router system:
• Keep your system components away from radiators and heat sources and do not block cooling vents.
• Do not spill food or liquids on your system components and never operate the product in a wet
environment.
• Do not push any objects into the openings of your system components. Doing so can cause fire or electric
shock by shorting out interior components.
• Position system cables and power supply cables carefully. Route system cables and the power supply
cable and plug so that they cannot be stepped on or tripped over. Be sure that nothing else rests on your
system component cables or power cable.
• Do not modify power cables or plugs. Consult a licensed electrician or your power company for site
modifications. Always follow your local and national wiring rules.
• If you turn off your system, wait at least 30 seconds before turning it on again to avoid system component
damage.
Site Planning Checklist
Use the following checklist to perform and account for all the site planning tasks described in this chapter:
• The site meets the environmental requirements.
• The site’s air conditioning system can compensate for the heat dissipation of the Cisco ASR 903 Router.
• The floor space that the Cisco ASR 903 Router occupies can support the weight of the system.
• Electrical service to the site complies with the requirements.
• The electrical circuit servicing the Cisco ASR 903 Router complies with the requirements.
• Consideration has been given to the console port wiring and limitations of the cabling involved, according
to TIA/EIA-232F.
• The Cisco ASR 903 Router Ethernet cabling distances are within limitations.
• The equipment rack in which you plan to install the Cisco ASR 903 Router complies with requirements.
• In selecting the location of the rack, careful consideration has been given to safety, ease of maintenance,
and proper airflow.
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Site Selection Guidelines
Site Selection Guidelines
The Cisco ASR 903 Router requires specific environmental operating conditions. Temperature, humidity,
altitude, and vibration can affect the performance and reliability of the router. The following sections provide
specific information to help you plan for the proper operating environment.
The Cisco ASR 903 Router is designed to meet the industry EMC, safety, and environmental standards
described in the Regulatory, Safety, and Compliance Information for the Cisco ASR 903 Router.
Environmental Requirements
The Cisco ASR 903 Router is Telcordia GR-3108-CORE Class-1 or GR-63-Core Indoor compliant.
Environmental monitoring in the Cisco ASR 903 Router protects the system and components from damage
caused by excessive voltage and temperature conditions. To ensure normal operation and avoid unnecessary
maintenance, plan and prepare your site configuration before installation. After installation, make sure that
the site maintains the environmental characteristics described in Cisco ASR 900 Series Aggregation Services
Routers Data Sheet.
For an outside plant installation (cell site cabinet, hut etc.), it is required that the Cisco ASR 903 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, we recommend that the unit
be installed in a fully sealed enclosure or cabinet. Examples of such cabinets include IP65 cabinets with heat
exchanger complying with Telecordia GR487. Temperature must be maintained within –40ºC to 65ºC
(depending upon which generation of RSP is used).
Preparing for Installation
Physical Characteristics
Be familiar with the physical characteristics of the Cisco ASR 903 Router to assist you in placing the system
in the proper location. For more information, see the Cisco ASR 900 Series Aggregation Services Routers
Data Sheet.
Air Flow Guidelines
Cool air is circulated through the Cisco ASR 903 Router by a fan tray located along the right side of the router.
Air flow is side-to-side, right to left, as shown in the figure below .
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Air Flow Guidelines for Enclosed Rack Installation
Figure 47: Cisco ASR 903 Router Chassis Air Flow
The fan trays maintain acceptable operating temperatures for the internal components by drawing in cool air
through the vents, and circulating the air through the chassis.
The following guidelines will help you plan your equipment rack configuration:
• To ensure adequate air flow through the equipment rack, we recommend that you maintain a clearance
of at least 80 mm on each side of the rack at all times.
• If airflow through the equipment rack and the routers that occupy it is blocked or restricted, or if the
ambient air being drawn into the rack is too warm, an overtemperature condition can occur within the
rack and the routers that occupy it.
• The site should also be as dust-free as possible. Dust tends to clog the router fans, reducing the flow of
cooling air through the equipment rack and the routers that occupy it, thus increasing the risk of an
overtemperature condition.
• Enclosed racks must have adequate ventilation. Ensure that the rack is not congested, because each router
generates heat. An enclosed rack should have louvered sides and a fan to provide cooling air. Heat that
is generated by the equipment near the bottom of the rack can be drawn upward into the intake ports of
the equipment above.
• When mounting a chassis in an open rack, ensure that the rack frame does not block the side intakes and
the exhaust fans.
• When rack-installed equipment fails, especially equipment in an enclosed rack, try operating the equipment
by itself, if possible. Power off all other equipment in the rack (and in adjacent racks) to give the router
maximum cooling air and clean power.
• Avoid locating the Cisco ASR 903 Router in a location in which the chassis air intake vents may draw
in the exhaust air from adjacent equipment. Consider how the air flows through the router; the airflow
direction is side to side, with ambient air drawn in from the vents located on the front right of the chassis.
• Ensure that cables do not obstruct the air-inlet and air-exhaust grid of the chassis as it may lead to improper
ventilation, overheating of the equipment, and dust accumulation.
Air Flow Guidelines for Enclosed Rack Installation
To install a Cisco ASR 903 Router in a 4-post enclosed cabinet, the front and rear doors of the cabinet must
be removed or be perforated with a minimum of 65% open area (70% for ETSI 800mm racks).
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Floor Loading Considerations
If you are mounting the chassis in a 4-post enclosed cabinet, ensure that you have a minimum of 6 inches
(15.24 cm) of clearance on each side of the chassis.
Floor Loading Considerations
Ensure that the floor under the rack supporting the Cisco ASR 903 Routers is capable of supporting the
combined weight of the rack and all the other installed equipment.
To assess the weight of a fully configured Cisco ASR 903 Router, refer to Cisco ASR 900 Series Aggregation
Services Routers Data Sheet.
For additional information about floor loading requirements, consult GR-63-CORE, Network Equipment
Building System (NEBS) Requirements: Physical Protection.
Site Power Guidelines
The Cisco ASR 903 Router has specific power and electrical wiring requirements. Adhering to these
requirements ensures reliable operation of the system. Follow these precautions and recommendations when
planning your site power for the Cisco ASR 903 Router:
Preparing for Installation
Caution
Note
• The redundant power option provides a second, identical power supply to ensure that power to the chassis
continues uninterrupted if one power supply fails or input power on one line fails.
• In systems configured with the redundant power option, connect each of the two power supplies to
separate independent power source. If you fail to do this, your system might be susceptible to total power
failure due to a fault in the external wiring or a tripped circuit breaker.
• To prevent a loss of input power, be sure that the total maximum load on each circuit supplying the power
supplies is within the current ratings of the wiring and the breakers.
• Check the power at your site before installation and periodically after installation to ensure that you are
receiving clean power. Install a power conditioner if necessary.
• Provide proper grounding to avoid personal injury and damage to the equipment due to lightning striking
power lines or due to power surges. The chassis ground must be attached to a central office or other
interior ground system.
This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation.
Install only in accordance with national and local wiring regulations.
The Cisco ASR 903 Router installation must comply with all the applicable codes and is approved for use
with copper conductors only. The ground bond fastening hardware should be of compatible material and
preclude loosening, deterioration, and electrochemical corrosion of hardware and joined material. Attachment
of the chassis ground to a central office or other interior ground system must be made with a 6 AWG gauge
wire, copper ground conductor at a minimum.
The maximum power draw of the Cisco ASR 903 Router chassis and its configurable hardware components
are listed in the following table. The maximum power draw values are not affected by whether the router
chassis contains 1 or 2 power supplies AC or DC.
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Site Power Guidelines
Maximum power draw valueHardware component(s)
195 WRouter chassis with 2 power supplies, 1 fan tray, and 1 RSP1A
210 WRouter chassis with 2 power supplies, 1 fan tray, and 1 RSP1B
100 WA900-RSP1A-55 (standby)
100 WA900-RSP1B-55 (standby)
70 WA900-RSP2A-64 (active)
A900U-RSP2A-64 (active)
55 WA900-RSP2A-64 (standby)
A900U-RSP2A-64 (standby)
100 WA900-RSP2A-128 (active)
A900U-RSP2A-128 (active)
A900U-RSP2A-128 (standby)
Module)
85 WA900-RSP2A-128 (standby)
230 WA900-RSP3-400-S (active)
230 WA900-RSP3-400-S (standby)
160 WA900-RSP3-200-S (active)
160 WA900-RSP3-200-S (standby)
13.0 WA900-IMA1X (1-port 10 GE XFP Interface Module)
17.5 WA900-IMA8T (8-port 1 GE RJ45 Interface Module)
17.5 WA900-IMA8S (8-port 1 GE SFP Interface Module)
14.5 WA900-IMA8D (8-port T1/E1 Interface Module)
14.5 WA900-IMA16D (16-port T1/E1 Interface Module)
18 WA900-IMA32D (32-port T1/E1 Interface Module)
92 WA900-IMA1Z8S-CX (OC-192 Interface Module + 8-port low rate Interface
35 WA900-IMA48D-C (48 port T1/E1 Interface Module)
52 WA900-IMA48T-C (48 port T3/E3 Interface Module)
29 WA900-IMA8S1Z (8-port 1GE SFP + 1-port 10 GE Interface Module)
27 WA900-IMA8T1Z (8-port 1GE RJ-45 Copper + 1 10 GE Interface Module
24 WA900-IMA2Z (2-port 10 GE Interface Module)
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Electrical Circuit Requirements
Gigabit Ethernet (SFP+) / 2-port 1 Gigabit Ethernet (CSFP) Interface Module)
STM-1/STM-4 + 12-port T1/E1 + 4-Port T3/E3 CEM Interface Module)
Preparing for Installation
Maximum power draw valueHardware component(s)
60 WA900-IMA8Z (8-port 10 Gigabit Ethernet Interface Module)
60 WA900-IMA1C (1-port 100 Gigabit Ethernet Interface Module)
60 WA900-IMA2F (2-port 40 Gigabit Ethernet QSFP Interface Module)
20 WA900-IMASER14A/S (14-port Serial Interface Module)
20 WA900-IMA6EM (6-port E & M Interface Module)
14 WA900-IMA4C3794 (4-port C37.94 Interface Module)
54 WA900-IMA8CS1Z-M (8/16-port 1 Gigabit Ethernet (SFP/SFP) + 1-port 10
55 WA900-IMA3G-IMSG (1-port OC-48/STM-16 or 4-port OC-12/OC-3 /
Electrical Circuit Requirements
Each Cisco ASR 903 Router requires a dedicated electrical circuit. If you equip it with dual power feeds,
provide a separate circuit for each power supply to avoid compromising the power redundancy feature.
The Cisco ASR 903 Routers can be powered by a DC source or an AC source. Ensure that equipment grounding
is present and observe the power strip ratings. Make sure that the total ampere rating of all products plugged
into the power strip does not exceed 80% of the rating.
For more information about the Cisco ASR 903 Router power supply, see Power Supply Features.
Site Cabling Guidelines
This section contains guidelines for wiring and cabling at your site. When preparing your site for network
connections to the Cisco ASR 903 Router, consider the type of cable required for each component, and the
cable limitations. Consider the distance limitations for signaling, electromagnetic interference (EMI), and
connector compatibility. Possible cable types are fiber, thick or thin coaxial, foil twisted-pair, or unshielded
twisted-pair cabling.
Also consider any additional interface equipment you need, such as transceivers, hubs, switches, modems,
channel service units (CSU), or data service units (DSU).
Before you begin, read these important notes about cabling:
• The T1/E1 interface module for the Cisco ASR 903 Router uses a high-density connector that requires
the use of a T1/E1 interface cable and a customer-provided patch panel. For more information,
seeConnecting T1/E1 cables.
• Shielded cables must be used to connect to the RS-48 alarm connector on the fan tray in order to comply
with FCC/EN55022/CISPR22 Class A emissions requirements. For information about the fan tray alarm
port, see Connecting the Fan Tray Alarm Port.
Before you install the Cisco ASR 903 Router, have all the additional external equipment and cables on hand.
For information about ordering, contact a Cisco customer service representative.
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Preparing for Installation
The extent of your network and the distances between the network interface connections depend in part on
the following factors:
• Signal type
• Signal speed
• Transmission medium
The distance and rate limits referenced in the following sections are the IEEE-recommended maximum speeds
and distances for signaling purposes. Use this information as a guideline in planning your network connections
prior to installing the Cisco ASR 903 Router.
If wires exceed the recommended distances, or if wires pass between buildings, give special consideration to
the effect of a lightning strike in your vicinity. The electromagnetic pulse caused by lightning or other
high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic
devices. If you have had problems of this sort in the past, you may want to consult experts in electrical surge
suppression and shielding.
Asynchronous Terminal Connections
The RSP provides a console port to connect a terminal or computer for local console access through RJ45
connector or USB connector. The RJ45 port connector supports RS-232 asynchronous data with distance
recommendations specified in the IEEE RS-232 standard.
Asynchronous Terminal Connections
Interference Considerations
When wires are run for any significant distance, there is a risk that stray signals will be induced on the wires
as interference. If interference signals are strong, they can cause data errors or damage to the equipment.
The following sections describe sources of interference and how to minimize its effects on the Cisco ASR
903 Router system.
Electromagnetic Interference
All equipment powered by AC current can propagate electrical energy that can cause EMI and possibly affect
the operation of other equipment. The typical sources of EMI are equipment power cords and power service
cables from electric utility companies.
Strong EMI can destroy the signal drivers and receivers in the Cisco ASR 903 Router and even create an
electrical hazard by causing power surges through the power lines into installed equipment. These problems
are rare but could be catastrophic.
To resolve these problems, you need specialized knowledge and equipment that could consume substantial
time and money. However, you can ensure that you have a properly grounded and shielded electrical
environment, paying special attention to the need for electrical surge suppression.
For information about the electrode magnetic compliance standards supported on the Cisco ASR 903 Router,
see Regulatory Compliance and Safety Information for the Cisco ASR 903 Router.
Radio Frequency Interference
When electromagnetic fields act over a long distance, radio frequency interference (RFI) may be propagated.
Building wiring can often act as an antenna, receiving the RFI signals and creating more EMI on the wiring.
If you use twisted-pair cable in your plant wiring with a good distribution of grounding conductors, the plant
wiring is unlikely to emit radio interference. If you exceed the recommended distances, use a high-quality
twisted-pair cable with one ground conductor for each data signal.
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Lightning and AC Power Fault Interference
Lightning and AC Power Fault Interference
If signal wires exceed the recommended cabling distances, or if signal wires pass between buildings, you
should consider the effect that a lightning strike in your vicinity might have on the Cisco ASR 903 Router.
The electromagnetic pulse (EMP) generated by lightning or other high-energy phenomena can couple enough
energy into unshielded conductors to damage or destroy electronic equipment. If you have previously
experienced such problems, you should consult with RFI and EMI experts to ensure that you have adequate
electrical surge suppression and shielding of signal cables in your Cisco ASR 903 Router operating environment.
Rack-Mounting Guidelines
The following sections provide guidelines for rack-mounting the Cisco ASR 903 Router:
Precautions for Rack-Mounting
The following rack-mount guidelines are provided to ensure your safety:
• Do not move large racks by yourself. Due to the height and weight of a rack, a minimum of two people
are required to accomplish this task.
• Ensure that the rack is level and stable before extending a component from the rack.
• Ensure that proper airflow is provided to the components in the rack.
• Do not step on or stand on any component or system when servicing other systems or components in a
rack.
• When mounting the Cisco ASR 903 Router in a partially filled rack, load the rack from the bottom to
the top, with the heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the
unit in the rack.
Preparing for Installation
Rack Selection Guidelines
The Cisco ASR 903 Router can be mounted in most two-post or four-post, 19-inch equipment racks that
comply with the Electronic Industries Association (EIA) standard for equipment racks (EIA-310-D 19-inch).
The rack must have at least two posts with mounting flanges to mount the chassis.
Caution
When mounting a chassis in any type of rack equipment, ensure that the inlet air to the chassis does not exceed
65°C.
The distance between the center lines of the mounting holes on the two mounting posts must be 18.31 inches
± 0.06 inch (46.50 cm ± 0.15 cm). The rack-mounting hardware included with the chassis is suitable for most
19-inch equipment racks.
Consider installing the Cisco ASR 903 Router in a rack with the following features:
• Network Equipment Building System (NEBS) compliant, 19-inch (48.3 cm) wide rack.
• EIA or European Telecommunications Standards Institute (ETSI) hole patterns in the mounting rails.
The required mounting hardware is shipped with the Cisco ASR 903 Router. If the rack that you plan to
install the system in has metric-threaded rails, you must provide your own metric-mounting hardware.
• Perforated top and open bottom for ventilation to prevent overheating.
• Leveling feet for stability.
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Note
The Cisco ASR 903 Router should not be installed in an enclosed rack because the chassis requires an
unobstructed flow of cooling air to maintain acceptable operating temperatures for its internal components.
Installing the router in any type of enclosed rack—even with the side doors removed —could disrupt the air
flow, trap heat next to the chassis, and cause an overtemperature condition inside the router. If you use an
enclosed rack, ensure that there are air vents on all sides of the rack and there is proper ventilation.
Equipment Rack Guidelines
The placement of the rack can affect personnel safety, system maintenance, and the system’s ability to operate
within the environmental characteristics described in the Cisco ASR 900 Series Aggregation Services Routers
Data Sheet.
Choose a proper location for the Cisco ASR 903 Router by following the guidelines listed below.
Locating for Safety
If the Cisco ASR 903 Router is the heaviest or the only piece of equipment in the rack, consider installing it
at or near the bottom to ensure that the rack’s center of gravity is as low as possible.
Equipment Rack Guidelines
For additional information about the proper placement of electronic equipment, consult the document
GR-63-CORE, Network Equipment Building System (NEBS) Requirements: Physical Protection.
Locating for Easy Maintenance
Keep at least 3 feet of clear space at the front and back of the rack. This space ensures that you can remove
the Cisco ASR 903 Router components and perform routine maintenance and upgrades easily.
Avoid installing the Cisco ASR 903 Router in a congested rack and consider how routing of cables from other
pieces of equipment in the same rack could affect access to the router cards.
The sides of the chassis must remain unobstructed to ensure adequate airflow and prevent overheating inside
the chassis.
Allow the following clearances for normal system maintenance:
• At the top of the chassis—At least 3 inches (7.6 cm)
• Sides of the chassis—3 to 4 ft (91.44 cm to 121.92 cm)
To avoid problems during installation and ongoing operations, follow these general precautions when you
plan equipment locations and connections:
• Use the show environment all command regularly to check the internal system status. The environmental
monitor continually checks the interior chassis environment; it provides warnings about high temperature
and creates reports on other potentially dangerous occurrences. If warning messages are displayed, take
immediate action to identify the cause, and correct the problem.
• Keep the Cisco ASR 903 Router off the floor and out of areas that collect dust.
• Follow ESD-prevention procedures to avoid damage to equipment. Damage from static discharge can
cause immediate or intermittent equipment failure.
Locating for Proper Airflow
Ensure that the Cisco ASR 903 Router location has enough airflow to keep the system operating within the
environmental characteristics and the air temperature is sufficient to compensate for the heat dissipated by
the system. For more information, see Air Flow Guidelines.
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Installation Checklist
Installation Checklist
To assist you with your installation and to provide a record of what was done by whom and when, photocopy
the Cisco ASR 903 Router Installation Checklist shown in the table below. Use this to record the completion
and verification of each procedure. After the checklist is completed, place it in your Site Log along with the
other records pertaining to your new Cisco router.
Table 14: Cisco ASR 903 Router Installation Checklist
Date on which chassis received
Chassis and all accessories unpacked
Types and numbers of interfaces verified
Safety recommendations and guidelines reviewed
Installation Checklist copied
Preparing for Installation
DateVerifiedByTask
Site Log established and background information entered
Site power voltages verified
Site environmental specifications verified
Required passwords, IP addresses, device names, and so on, available
Required tools available
Network connection equipment available
Cable-management brackets installed (optional, but recommended)
AC power cables connected to AC sources and router
DC power cables connected to DC sources and router
Network interface cables and devices connected
System power turned on
System boot complete (STATUS LED is on)
Shared port adapters are operational
Correct software configuration displayed after system banner appears
Creating a Site Log
The Site Log provides a record of all the actions related to installing and maintaining the router. Keep it in
an accessible place near the chassis so that anyone who performs tasks has access to it.
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Preparing for Installation
Create the Site Log prior to the installation. See Site Log and Manufactures for more information on the Site
Log as well as a sample Site Log that can be used to make copies.
Receiving the Cisco ASR 903 Router
Each Cisco ASR 903 Router chassis is shipped in a container. See the figure below .
Figure 48: Cisco ASR 903 Router Packaged for Shipping
Receiving the Cisco ASR 903 Router
Chassis-Lifting Guidelines
The chassis is not intended to be moved frequently. Before you install the system, ensure that your site is
properly prepared so that you can avoid having to move the chassis later to accommodate power sources and
network connections.
Packaging Material4Cap of Accessories tray1
Packaging Material5Accessories tray2
Packaging Container6Cisco ASR 903 router3
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Tools and Equipment
Preparing for Installation
Each time you lift the chassis, follow these guidelines:
• Ensure that your footing is solid, and balance the weight of the chassis between your feet.
• Lift the chassis slowly; never move suddenly or twist your body as you lift.
• Keep your back straight and lift with your legs, not your back. If you must bend down to lift the chassis,
bend at the knees, not at the waist, to reduce the strain on your back muscles.
• Do not remove installed components from the chassis.
• Always disconnect all external cables before lifting or moving the chassis.
• Do not carry the chassis in any other packaging except as provided by Cisco packaging. Usage of other
inferior packaging for equipment movement may cause severe damage to the product.
• If the equipment is opened for testing purposes, and has to be re-packaged for movement, package it
exactly the same way (orientation) as it was previously packaged at the time of product delivery by
including all the packaging counter parts. Wrong orientation may cause damage to the product during
transportation.
• Always use ESD cover to wrap the hardware before packing it into packaging carton.
• If faulty hardware has to be shipped to RMA depot, use same Cisco packaging which was provided at
the time of product delivery.
Warning
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles
on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the
weight of the unit. Lift the unit only by using handles that are an integral part of the chassis, or by grasping
the chassis underneath its lower edge. Statement 163
Tools and Equipment
You need the following tools and equipment to install and upgrade the router and its components:
• ESD-preventive cord and wrist strap
• Antistatic mat or antistatic foam
• Number 1 and Number 2 Phillips-head screwdrivers
• Flat-blade screwdrivers: Small 3/16-inch (0.476 cm) and medium 1/4-inch (0.625 cm):
• To install or remove modules
• To remove the cover if you are upgrading the memory or other components
• #12-24 pan-head screws to secure the router to the equipment rack
• Cables for connecting to the WAN and LAN ports (depending on the configuration)
Note
For more information on cable specifications, see Troubleshooting.
• Ethernet hub or switch or PC with a network interface card for connecting to the Ethernet ports
• Console terminal (an ASCII terminal or a PC running terminal emulation software) that is configured
for 9600 baud, 8 data bits, no parity, and 2 stop bits
• Console cable for connecting to the console port
• (Optional) Modem for connecting to the auxiliary port for remote administrative access
• Auxiliary cable for connecting to the auxiliary port (you can supply this cable or order one)
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Preparing for Installation
Unpacking and Verifying the Shipped Contents
• Ratcheting torque screwdriver with a Phillips head that exerts up to 30 pound-force per square inch (in-lb)
of pressure
• Crimping tool as specified by the ground lug manufacturer
• 18 AWG copper wire for the power cord
• Wire-stripping tools for stripping both 6 AWG and 18 AWG wire
• Tape measure and level
Warning
Only trained and qualified personnel should be allowed to install or replace this equipment. Statement 49
Unpacking and Verifying the Shipped Contents
When you receive your chassis, perform the following steps and use the Shipping Contents Checklist:
Step 1 Inspect the box for any shipping damage. If there is obvious physical damage, contact your Cisco service representative.
Step 2 Unpack the Cisco ASR 903 Router.
Step 3 Perform a visual inspection of the chassis.
Step 4 Use the table below to check the contents of the Cisco ASR 903 Router shipping container. Do not discard the shipping
container. You will need the container if you move or ship the Cisco ASR 903 Router in the future.
What to do next
Table 15: Cisco ASR 903 Router Shipping Container Contents
DescriptionComponent
Cisco ASR 903 Router chassisChassis
Fan tray
Power supplies
RSP
Interface modules
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Unpacking and Verifying the Shipped Contents
DescriptionComponent
Preparing for Installation
Accessories kit
ESD, wrist strap (disposable)
Documentation
Optional equipment
Chassis rack-mount brackets (19-inch EIA)
Three sets of screws:
• Front and rear rack-mount bracket screws (2 sets)
• Cable-management bracket screws
Six cable-management brackets (one per bracket)
One earth lug with two 10-32 screws.
1 RJ45 to RJ45 crossover cable
1 RJ45 to DB-9 (female) adapter
One disposable wrist strap (optional)
Regulatory Compliance and Safety Information for the Cisco ASR 903 Router
Check the container for the following optional equipment:
• Power cord if an AC power supply was shipped. There are no cords for the DC power supply
units.
• T1/E1 cable connector (required only for T1/E1 interface modules)
Note
Most Cisco documentation is available online. Documentation that is shipped with your Cisco ASR 903 Router
includes the Regulatory Compliance and Safety Information for the Cisco ASR 903 Router document, and
the Cisco ASR 903 Router Documentation Roadmap that contains information about the various documents
that are available online and the links to them.
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Installing the Cisco ASR 903 Router
This chapter describes how to install the Cisco ASR 903 Router.
Prerequisites
Before installing the Cisco ASR 903 Router, it is important to prepare for the installation by:
CHAPTER 3
• Prerequisites, on page 71
• Installing the Router in a Rack, on page 71
• Installing the Chassis Ground Connection, on page 83
• Installing the Fan Tray, on page 86
• RSP Installation, on page 89
• Interface Module Installation, on page 92
• Installing the Power Supply, on page 96
• Connecting the Cisco ASR 903 Router to the Network, on page 107
• Preparing the site (site planning) and reviewing the installation plans or method of procedures (MOP)
• Unpacking and inspecting the Cisco ASR 903 Router
• Gathering the tools and test equipment required to properly install the Cisco ASR 903 Router
For more instructions on how to prepare for the installation of the Cisco ASR 903 Router, see Preparing for
Installation, on page 47.
Installing the Router in a Rack
The following sections describe how to install the Cisco ASR 903 Router in a rack:
Installing the Chassis Brackets
The chassis is shipped with mounting brackets that can be installed on the front or rear of the chassis. To
install the brackets on the front of the chassis, perform these steps:
Step 1 Remove the rack-mount brackets from the accessory kit and position them beside the router chassis. The figure below
hows how to attach the brackets on the Cisco ASR 903 Router for a 19-inch EIA rack.
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Installing the Router Chassis in the Rack
Figure 49: Attaching Mounting Brackets for a 19-inch EIA Rack
The figure below shows how to attach the brackets on the Cisco ASR 903 Router for a 300 mm ETSI cabinet.
Figure 50: Attaching Mounting Brackets for a 300 mm ETSI Cabinet
Installing the Cisco ASR 903 Router
Step 2 Position one of the brackets against the chassis side, and align the screw holes.
Step 3 Secure the bracket to the chassis with the screws removed when performing Step 1 . The recommended maximum torque
is 28 in.-lb (3.16 N-m).
The A903-FAN-E fan tray with filter (A903-FAN-F) cannot be mounted using the mounting screws that are supported
for A903-FAN fan tray. This is not an issue with the FAN tray filter blank panel (A903-FAN-F-B). We recommend that
you use the short screws provided in the following rack mount kits to avoid interference of the air filter during rack
mounting and while replacing the fan tray (A903-FAN) with the fan tray (A903-FAN-E):
• 19” rack mount kit (A903-RCKMT-19IN)
• ETSI rack mount kit (A903-RCKMT-ETSI)
What to do next
Repeat Step 2 and Step 3 for the other bracket.
Installing the Router Chassis in the Rack
The procedures in this section apply to both horizontal and vertical mounting of the router in a rack.
To install the router chassis in the equipment rack, perform these steps:
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Installing the Router Chassis in the Rack
Step 1 Position the chassis in the rack as follows:
• If the front of the chassis (front panel) is at the front of the rack, insert the rear of the chassis between the mounting
posts.
• If the rear of the chassis is at the front of the rack, insert the front of the chassis between the mounting posts.
Step 2 Align the mounting holes in the bracket (and optional cable guide) with the mounting holes in the equipment rack.
Caution
Do not use interface module and power supply ejector handles to lift the chassis; using the handles to lift the
chassis can deform or damage the handles.
Figure 51: Installing the Chassis in a 19-inch EIA Rack
Figure 52: Installing the Chassis to support the Japanese JIS Rack Standard
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Figure 53: Installing the Chassis in a 300 mm ETSI Cabinet
Figure 54: Vertical Mounting Installation
Installing the Cisco ASR 903 Router
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Installing Plenum A903-F2B-AIR-U Assembly and Chassis in the Rack
Note
During vertical installation of the router, ensure that the equipment is mounted only on concrete or other
non-combustible surfaces.
Step 3 Install the 8 or 12 (4 or 6 per side) 12-24 x 3/4-inch or 10-32 x 3/4-inch screws through the holes in the bracket and into
the threaded holes in the equipment rack posts.
Step 4 Use a tape measure and level to verify that the chassis is installed straight and level.
Installing Plenum A903-F2B-AIR-U Assembly and Chassis in the Rack
Following steps help you to install the plenum assembly irrespective of the chassis and rack size.
Note
The 19-inches bracket is an integral part of the plenum base. Ensure to select the 21-inches or 23-inches
adapter for your plenum based on your rack size.
Figure 55: Different Adapters
Step 1 Position the air baffle and the side plate to the plenum. Secure the air baffle and the side plate using a maximum torque
of 11.5 in.-lb (1.3 N-m). See figure below.
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Figure 56: Securing the Air Baffle Tray
Installing the Cisco ASR 903 Router
Plenum base3Air baffle1
Secure screw to Plenum base4Side plate2
Step 2 Secure the air baffle using a maximum torque of 11.5 in.-lb (1.3 N-m). See figure below.
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Figure 57: Securing the Side Plate
Installing Plenum A903-F2B-AIR-U Assembly and Chassis in the Rack
——Securing side plate to plenum base1
Step 3 Repeat Step-1 and Step-2 to complete the plenum assembly on the other side of the plenum base.
Step 4 Position the air filter (A903-F2B-AIR-F) assembly on the plenum deflector. Secure the front cover using a recommended
torque of 11.5 in.-lb (1.3 N-m). See figure below.
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Figure 58: Air Filter
Installing the Cisco ASR 903 Router
Note
The filter is applicable only when fans A903-FAN and A903-FAN-H are used and the filter is not applicable
for A903-FAN-E.
Step 5 Using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug to the ground wire and connect
the other end of the ground wire to a suitable grounding point at your site. See figure below.
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Figure 59: Attaching the Ground Lug and Wire Assembly
Installing Plenum A903-F2B-AIR-U Assembly and Chassis in the Rack
Dual ground screws2Dual-hole ground adapter and dual-hole lug1
Step 6 Position the plenum assembly to the rack and secure the cable brackets to the rack using a torque of 11.5 in.-lb (1.3 N-m).
See figure below.
Note
For a 19-inch rack installation, the rack has to have a flat post.
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Figure 60: Plenum Assembly to 21-inch Rack
Installing the Cisco ASR 903 Router
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Figure 61: Plenum Assembly to 23-inch Rack
Installing Plenum A903-F2B-AIR-U Assembly and Chassis in the Rack
——Secure screws to rack1
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Installing the Chassis in the Air Plenum
Installing the Chassis in the Air Plenum
Note
Ensure that the router is not installed in the Air Plenum while mounting it on the rack.
For instructions on mounting the air plenum on the rack, (see Manufactures).
Step 1 Position the chassis so that the rear of the chassis is at the front of the plenum. See the figure below.
Step 2 Slide the chassis into the plenum so that the front of the chassis is in flush with the mounting rails and brackets.
Figure 62: Cisco ASR 903 Chassis with Air Plenum
Air plenum2Cisco ASR 903 router1
Attaching the Cable Management Brackets
The router supports the following brackets:
• A903-CABLE-GUIDE
• A903-CAB-BRACKET—This bracket helps in routing the cables from the interface modules; therefore
enabling a proper cable bending radius.
Note
The mounting brackets and cable mounting brackets are assembled together. We recommend that the brackets
are installed before the chassis is installed in the Air Plenum.
To install the optional cable management brackets, perform these steps:
Step 1 Position the cable management brackets against the front of the chassis and align the four screw holes, as shown in the
figure below.
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Figure 63: Cable Management Bracket Installation
Figure 64: Cable Management Bracket (A903-CAB-BRACKET)
Installing the Chassis Ground Connection
Step 2 Secure the cable management brackets with four M4 screws. The recommended maximum torque is 10 in.-lb (1.12 N-m).
Installing the Chassis Ground Connection
Before you connect the power or turn on the power to the Cisco ASR 903 Router, you must provide an adequate
chassis ground (earth) connection to your router.
This section describes how to ground the Cisco ASR 903 Router chassis. The router provides two locations
for attaching a 2-hole grounding lug according to the rack-mounting brackets you use to install the router.
The Cisco ASR 903 Router supports the following rack-mounting types:
• EIA 19-inch rack—Attach the grounding lug to the rear of the router, as shown in the figure below.
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Figure 65: Attaching a Grounding Lug to the Rear of the Router
Grounding lug (19-inch EIA rack)1
• 300 mm ETSI cabinet—Attach the grounding lug on the rack-mount bracket on the front of the router,
as shown in the figure below.
Figure 66: Attaching a Grounding Lug to the Rack-Mount Bracket
Installing the Cisco ASR 903 Router
Caution
Warning
Grounding lug (300 mm ETSI cabinet)1
To ensure that the chassis ground connection that you provide is adequate, you need the following parts and
tools:
• Ratcheting torque screwdriver with Phillips head that exerts up to 15 in.-lb (1.69 N-m) of pressure for
attaching the ground wire to the router
• Crimping tool as specified by the ground lug manufacturer
• 18 AWG copper wire for the power cord
• 6 AWG or larger copper wire for the ground wire
• Wire-stripping tools appropriate to the wire you are using
Before making connections to the Cisco ASR 903 Router, ensure that you disconnect the power at the circuit
breaker. Otherwise, severe injury to you or damage to the router may occur.
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available. Statement 1024
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Installing the Chassis Ground Connection
Warning
Warning
Use copper conductors only. Statement 1025
When installing the unit, the ground connection must always be made first and disconnected last. Statement
42
This unit is to be installed in a restrictive access location and must be permanently grounded to minimum 6
AWG copper ground wire.
Perform the following procedure to ground the Cisco ASR 903 Router using a 2-hole lug and the corresponding
mounting point. Most carriers require a minimum 6 AWG ground connection. Verify your carrier’s requirements
for the ground connection.
Step 1 If your ground wire is insulated, use a wire-stripping tool to strip the ground wire to 0.5 inch ± 0.02 inch (12.7 mm ±0.5
mm) ( as shown in the figure below).
Figure 67: Stripping a Ground Wire
Step 2 Slide the open end of your 2-hole ground lug over the exposed area of the ground wire.
Step 3 Using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug to the ground wire as shown
in the figure below.
Figure 68: Crimping a Ground Lug onto the Ground Wire
Step 4 Use a Phillips head screwdriver to attach the 2-hole ground lug and wire assembly to the router with the 2 pan-head
Phillips head screws. For a 19-inch EIA rack, attach the 2-hole ground lug to the rear of the router.
Step 5 Connect the other end of the ground wire to a suitable grounding point at your site.
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Installing the Fan Tray
Installing the Fan Tray
The fan tray is a modular unit that provides cooling to the Cisco ASR 903 Router. Follow these steps to install
the fan tray in the chassis:
Step 1 Orient the fan tray so that the captive screws are on the left side of the fan tray’s front panel. The figure below shows
how to orient the fan tray.
Figure 69: Installing the Fan Tray
Step 2 Guide the fan tray into the chassis until it is fully seated.
Caution
Note
Step 3 Secure the fan tray to the chassis using the attached captive installation screws. The recommended maximum torque is
5.5 in.-lb (.62 N-m).
This completes the procedure for installing or replacing the fan tray in a Cisco ASR 903 Router.
For information about connecting cables to the fan tray alarm port, see Connecting the Fan Tray Alarm Port. For a
summary of the LEDs on the fan tray, see LED Summary. For more information about air flow guidelines, see Air Flow
Guidelines.
The fans are exposed on the left side of the fan tray. Keep your fingers, clothing, and jewelry away from the
fans. Always handle the fan tray by the handle.
When installing the cabling to the RSPs, we recommend that you leave a service loop of extra cabling sufficient
to allow for fan tray removal.
Installing the Dust Filter
Step 1 Follow the steps for removing the fan tray (if installed) from the chassis. See Removing and Replacing the Fan Tray, on
page 87.
Step 2 Remove the dummy cover from the fan tray. See the figure in section Fan Tray (A903-FAN-E), on page 10.
Step 3 Slide the dust filter onto the fan tray. See the figure in section Fan Tray (A903-FAN-E), on page 10.
Step 4 Insert the dummy cover on the fan tray to secure the filter within the chassis.
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Step 5 Follow the steps to install the fan tray in the chassis. See Installing the Fan Tray, on page 86.
Removing the Dust Filter
The dust filter must be removed for a replacement.
Note
The dust filter is a single-use component.
Dust Filter Maintenance
A periodic health check of the filter, every three months based on the level of dust in the environment, helps
in avoiding over clogging of the filters and provide a better life. This product's filter is used as a single-use
component. If the product is installed in a controlled environment, check and replace the filter every three
months, otherwise replace the filter every month with PID (A903-FAN-F=) or equivalent.
Removing the Dust Filter
Step 1 Remove the dummy cover from the fan tray.
Step 2 Remove the dust filter from the fan.
Note
Step 3 Slide the replacement dust filter onto the fan tray
Step 4 Insert the dummy cover onto the fan tray to secure the filter within the chassis.
The filter can be accessed by pulling the pull tab by using fingers or pliers. See the figure in section Fan Tray
(A903-FAN-E), on page 10.
Removing and Replacing the Fan Tray
The fan tray supports online insertion and removal (OIR). There is no need to power down the Cisco ASR
903 Router to remove or replace the fan tray. However, there is a finite time to replace the fan tray. This time
depends upon the specific RSP and fan tray combination and also the ambient temperature. The following
table provides the time interval for replacing the fan tray. At higher ambient temperatures, the replacement
time is lower.
Note
If a fan tray is removed, and not replaced within the stipulated time the system will automatically power-off.
The actual shutdown time depends on few parameters like the total traffic load, ambient temperature, type of
fan tray that is used and the dust filter condition (if a filter is present). If the system is powered with PSUs
other than 900W DC or 1200W AC and if the system is powered off, then the system should be completely
powered off for 30 seconds with all the PSU in the system simultaneously, and then turned on for the system
to power on.
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Removing and Replacing the Fan Tray
Table 16: Fan Tray Replacement Time
Installing the Cisco ASR 903 Router
Replacement Time at 25°C AmbientFan TrayRSP Module
5 minutesA903-FAN, A903-FAN-ERSP1, RSP2
2 minutes 15 secondsA903-FANRSP3-200
2 minutes 15 secondsA903-FAN-ERSP3-200
3 minutes 30 secondsA903-FAN-HRSP3-200
1 minuteA903-FANRSP3-400
35 secondsA903-FAN-ERSP3-400
2 minutesA903-FAN-HRSP3-400
Caution
To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize, after the fan tray
has been removed or replaced. This is applicable when the RSP1 and RSP2 modules are installed in the chassis.
Follow these steps to remove and replace the fan tray on the Cisco ASR 903 Router:
Step 1 Using a No. 2 Phillips screwdriver or your fingers, loosen the captive installation screw that secures the fan tray to the
chassis. The following figure shows the front of the fan tray, including the handle and the captive installation screws.
Figure 70: Detaching the Fan Tray
Step 2 Grasp the fan tray handle with one hand and the outside of the chassis with the other hand.
Caution
The fans are exposed on the left side of the fan tray. Keep your fingers, clothing, and jewelry away from the
fans. Always handle the fan tray by the handle.
Step 3 Pull the fan tray backward toward you no more than 1 inch to disengage it from the power receptacle on the midplane,
as shown in the following figure.
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Figure 71: Fan Tray Removal
When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let the fan blades completely
stop before you remove the fan tray. Statement 258
RSP Installation
Step 4 Wait at least 5 seconds to allow the fans to stop spinning. Then, pull the fan tray backward toward you and out of the
chassis.
Note
This completes the steps for removing the fan tray from the chassis.
To install the new fan tray, follow the steps inInstalling the Fan Tray.
As the fan tray slides out of the chassis, support the bottom of the fan tray with one hand and keep your other
hand on the fan tray handle.
RSP Installation
Follow these steps on handling an RSP module in the Cisco ASR 903 Router:
Installing an RSP Module
To install an RSP module in the router chassis, perform the following steps:
Step 1 Choose a slot for the module. Make sure that there is enough clearance to accommodate any equipment that will be
connected to the ports on the module. If a blank module filler plate is installed in the slot in which you plan to install the
module, remove the plate by removing its 2 Phillips pan-head screws.
Step 2 Fully open both the ejector levers on the new module, as shown in the figure below.
Caution
Step 3 Position the module in the slot. Make sure that you align the sides of the module with the guides on each side of the slot,
as shown in the figure below .
To prevent ESD damage, handle modules by carrier edges only.
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Removing an RSP Module
Figure 72: Cisco ASR 903 Router RSP Installation
Step 4 Carefully slide the module into the slot until the EMI gasket on the module makes contact with the module in the adjacent
slot and both the ejector levers have closed to approximately 45 degrees with respect to the module faceplate.
Caution
If the top slot already has an RSP module installed, and you install a second RSP module in the slot below it,
be careful not to damage the EMI gasket of the bottom RSP module against the ejector levers of the top RSP
during insertion.
Step 5 While pressing down, simultaneously close both the ejector levers to fully seat the module in the backplane connector.
The ejector levers are fully closed when they are flush with the module faceplate.
Step 6 Tighten the two captive installation screws on the module. The recommended maximum torque is 5.5 in.-lb (.62 N-m).
Note
Make sure that the ejector levers are fully closed before tightening the captive installation screws.
Step 7 Verify that the captive installation screws are tightened on all of the modules installed in the chassis. This step ensures
that the EMI gaskets on all the modules are fully compressed in order to maximize the opening space for the new or
replacement module.
Note
If the captive installation screws are loose, the EMI gaskets on the installed modules will push adjacent modules
toward the open slot, which reduces the size of the opening and makes it difficult to install the new module.
Note
Blank module filler plates (Cisco part number A900-RSPA-BLANK) should be installed in any empty chassis
slots to keep dust out of the chassis and to maintain consistent airflow through the chassis.
Note
When installing the cabling to an RSP, we recommend that you leave a service loop of extra cabling sufficient
to allow for fan tray removal.
Note
Close all unused RJ-45 and USB ports on the RSP module using the appropriate dust caps to prevent dust from
accumulating inside the cage. For information on dust caps, see Installing Dust Caps.
Removing an RSP Module
Before you remove an RSP from the router, you should save the current configuration using the write {host
file | network | terminal} command. This saves you time when bringing the module back online.
If the module is running Cisco IOS software, save the current running configuration by entering the copy
running-config startup-config command.
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