Table Of Contents
Overview and Parts Installation
Hardware Overview
Front View
LEDs
Rear View
System Board
System Management Functions
Checking the Shipping Container Contents
Installation Checklist
Installing the CompactFlash Disk, GBIC, and Port Adapter
Installing and Removing the CompactFlash Disk
Installing and Removing the Gigabit Interface Converter
Installing and Removing a Port Adapter or Service Adapter
Replacing the SDRAM DIMM
Removing the Cover
Removing and Installing the SDRAM DIMM
Replacing the Cover
Overview and Parts Installation
The Cisco 7401ASR router provides application-specific features for broadband subscriber aggregation and network application services with high processing performance.
This chapter provides a quick hardware overview and options installation instructions for the
Cisco 7401ASR router. For functional information see "Starting and Configuring," the "Functional Overview" section. For system specifications and port and cabling specifications, see "Specifications."
The following sections describe router hardware and options installation:
•
Hardware Overview
•Checking the Shipping Container Contents
•Installation Checklist
•Installing the CompactFlash Disk, GBIC, and Port Adapter
•Replacing the SDRAM DIMM
Warning Before you install, operate, or service the system, read the Site Preparation and Safety Guide. This guide contains important safety information you should know before working with the system.
Hardware Overview
The Cisco 7401ASR router supports the following features:
•Online insertion and removal (OIR)—Allows you to add, replace, or remove port adapters without interrupting the system.
•Environmental monitoring and reporting functions—Allow you to maintain normal system operation by resolving adverse environmental conditions prior to loss of operation.
•Downloadable software—Allows you to load new images into Flash memory remotely, without having to physically access the router, for fast, reliable upgrades.
•Small form-factor—One rack-unit (RU) high with stacking capability:
1.72 in. x 17.3 in. x 11.80 in. (4.37 cm x 43.9 cm x 30 cm). The weight is approximately 10.5 lbs (4.76 kg).
•Front-to-back airflow—Allows you to mount the router from either front or back into two post or 19-inch racks and 21-23-inch four-post racks.
The following sections provide illustrations and a brief overview of the Cisco 7401ASR router:
•Front View
•LEDs
•Rear View
•System Board
•System Management Functions
Front View
Figure 1-1 Cisco 7401ASR Router—Front View
1
|
Port adapter slot (with installed port adapter)
|
8
|
Console port
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2
|
Port adapter latch
|
9
|
Alarm port
|
3
|
GBIC port 0
|
10
|
Ground for ESD wrist strap banana jack
|
4
|
FE port 0
|
11
|
Power switch
|
5
|
FE port 1
|
12
|
CompactFlash Disk slot
|
6
|
GBIC port 1
|
13
|
Power connector
|
7
|
Auxiliary port
|
|
|
The Cisco 7401ASR router supports:
•Two native Ethernet interfaces—Each interface has two physical ports, a Gigabit Ethernet (1000-Mbps) port that uses a Gigabit Interface Converter (GBIC) and a Fast Ethernet/Ethernet (10/100-Mbps) port with an RJ-45 connector. Any two of the four ports are available at any one time.
•Both 25-MHz and 50-MHz port adapter operation.
•A 64- or 128-MB CompactFlash Disk.
•A single power supply that is available in four options: AC, single -24V DC, single -48V DC, and dual -48V DC.
LEDs
LED information is in Figure 1-2 and the table below Figure 1-2.
Figure 1-2 LEDs on the Cisco 7401ASR Router
No.
|
LED Label
|
LED
|
Color
|
In the Power Up state, the LED is
|
LED flashes when there is traffic
|
1
|
GBIC 0 ENABLE
|
GBIC 0 ENABLE
|
Green
|
On
|
No, remains constantly on
|
2
|
LINK
|
GBIC LINK 0
|
Green
|
—
|
Yes
|
3
|
FE 0 LINK
|
FE 0 LINK
|
Green
|
—
|
Yes
|
4
|
100 Mbps
|
FE 0
|
Green
|
On
|
No, remains constantly on
|
5
|
GBIC 1 ENABLE
|
GBIC 1 ENABLE
|
Green
|
—
|
No, remains constantly on
|
6
|
LINK
|
GBIC LINK 1
|
Green
|
On
|
Yes
|
7
|
FE 1 LINK
|
FE 1 LINK
|
Green
|
—
|
Yes
|
8
|
100 Mbps
|
FE 1
|
Green
|
On
|
No, remains constantly on
|
9
|
STATUS
|
System Status
|
Green
|
On
|
No, remains constantly on
|
10
|
COMPACT FLASH
|
CompactFlash Disk
|
Green
|
On, if the CompactFlash Disk is inserted and functioning
|
No, remains constantly on if the CompactFlash Disk is inserted and functioning
|
Rear View
Figure 1-3 Cisco 7401ASR Router—Rear View
1
|
Fan vent
|
2
|
Grounding connector
|
The rear of the Cisco 7401ASR router has five fan airflow vents and the chassis grounding connector that provides a chassis ground connection for ESD equipment or a two-hole grounding lug. (See Figure 1-3.)
Five internal fans draw cooling air into the chassis and across internal components to maintain an acceptable operating temperature. (See Figure 1-3.) The five fans are located at the rear of the chassis.
System Board
Internally, the system board contains the following components:
•SDRAM memory that is available in three options: 128, 256, or 512 MB DIMM
•Processors
–Reduced instruction set computing (RISC) RM7000 microprocessor that operates at an internal clock speed of 375 MHz. The RM7000 processor maintains and executes the system management functions for the Cisco 7401ASR router. The processor also performs some memory and environmental monitoring functions.
–The Parallel eXpress Forwarding (PXF) processor enables parallel IP multipacket processing functions, working with the Route Processor to provide accelerated packet switching, as well as accelerated IP Layer 3 feature processing.
•System controller
The system controller provides hardware logic to interconnect the processors, SDRAM, and the PCI buses. The Cisco 7401ASR router has one system controller that provides processor access to the two PCI buses. The system controller also allows the port adapter access to SDRAM.
•Cache memory
The processor has three levels of cache: primary and secondary cache that are internal to the microprocessor with secondary unified cache for data and instruction, and tertiary, 2-MB external cache.
•Two environmental sensors for monitoring the internal temperature of the chassis
•Boot ROM for storing sufficient code for booting the Cisco IOS software
System Management Functions
The Cisco 7401ASR processor performs the following system management functions:
•Sending and receiving routing protocol updates
•Managing tables, caches, and buffers
•Monitoring interface and environmental status
•Providing Simple Network Management Protocol (SNMP) management through the console and Telnet interface
•Accounting for and switching of data traffic
•Booting and reloading images
•Managing the port adapter (including recognition and initialization during online insertion and removal)
Note For a chassis footprint, additional dimensions, and clearance requirements for the Cisco 7401ASR router, see the "Preparing to Install the Cisco 7401ASR Router" section on page 2-1 in Chapter 2, "Rack-Mounting, Tabletop Installation, and Cabling."
The Cisco 7401ASR router supports multiprotocol, multimedia routing and bridging with a wide variety of protocols and port adapters.
Checking the Shipping Container Contents
Use the Cisco 7401ASR Components List to check the contents of the Cisco 7401ASR router shipping container. Do not discard the shipping container. You need the container if you move or ship the Cisco 7401ASR router in the future.
Table 1-1 Cisco 7401ASR Components List
Component
|
Description
|
Received
|
Chassis
|
Cisco 7401ASR chassis configured with an AC or DC power supply, a port adapter filler plate, and a CompactFlash Disk
|
|
Accessories:
•Rack-mount and cable-management kit
•Power cables
•Documentation
|
The following accessories might arrive in separate shipping containers:
Two rack-mount brackets, one cable-management bracket,
four 12-24 x 0.5-in. screws to secure the rack-mount brackets to the chassis, four 8-18 x .37-in. screws to secure the rack-mount brackets to a 19-inch rack, four 8 x .375-in. screws to secure the rack-mount brackets to a 21-23-inch rack, and one M4 x 20-mm screw to attach the cable-management bracket to the rack-mount bracket
An AC power cable, if an AC power supply was ordered
If ordered, router hardware and software documentation set and the Cisco Documentation CD-ROM package1
|
|
|
Optional Equipment
|
Examples: Network interface cables, transceivers, special connectors
|
|
Note We no longer ship the entire router documentation set automatically with each system. You must specifically order the documentation as part of the sales order. If you ordered documentation and did not receive it, we will ship the documents to you within 24 hours. To order documents, contact a customer service representative.
Installation Checklist
This section assumes you will be installing the CompactFlash Disk, Gigabit Interface Converter (GBIC), and port adapter or service adapter before powering on the router, or before installing it in a rack and powering it on. For complete site requirement information, see Chapter 2, "Rack-Mounting, Tabletop Installation, and Cabling," the "Site Requirement Guidelines" section on page 2-4.
To assist you with your installation and to provide a historical record of what was done by whom, photocopy the Cisco 7401ASR Router Installation Checklist, Table 1-2. Indicate when each procedure or verification is completed. When the checklist is completed, place it in your site log along with the other records for your new router.
Table 1-2 Cisco 7401ASR Router Installation Checklist
Task
|
Verified By
|
Date
|
Date router received
|
|
|
Router and all accessories unpacked
|
|
|
Types and numbers of interfaces verified
|
|
|
Safety recommendations and guidelines reviewed
|
|
|
Installation Checklist copied
|
|
|
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
|
|
|
Router mounted in rack (optional)
|
|
|
Cable-management bracket installed (optional but recommended)
|
|
|
AC power cable(s) connected to AC source(s) and router
|
|
|
DC power cable(s) connected to DC source(s) and router
|
|
|
Network interface cables and devices connected
|
|
|
ASCII terminal attached to console port
|
|
|
Console port set for 9600 baud, 8 data bits, no parity, and 2 stop bits (9600 8N2)
|
|
|
System power turned on
|
|
|
System boot complete (STATUS LED is on)
|
|
|
I/O ports and port adapter are operational (see Figure 1-2 on page 1-3 for specific LED information)
|
|
|
Correct hardware configuration displayed after system banner appears
|
|
|
Installing the CompactFlash Disk, GBIC, and Port Adapter
You may have ordered a CompactFlash Disk, Gigabit Interface Converter (GBIC), and one of a variety of port adapters or service adapter with your Cisco 7401ASR router. You must install the CompactFlash Disk, GBIC, and port adapter service adapter. Use the installation instructions in the following sections to install or remove one of these optional parts:
•Installing and Removing the CompactFlash Disk
•Installing and Removing the Gigabit Interface Converter
•Installing and Removing a Port Adapter or Service Adapter
Installing and Removing the CompactFlash Disk
Figure 1-4 Installing and Removing the CompactFlash Disk
1
|
CompactFlash Disk insertion
|
2
|
CompactFlash Disk removal
|
Insert the CompactFlash Disk in the CompactFlash Disk slot (1) with the label with the vendor name and memory size facing up. It protrudes when completely seated. To remove the CompactFlash Disk, grasp it and pull it from the slot (2).
The CompactFlash Disk is keyed to prevent it being inserted incorrectly.
Note Only the CompactFlash Disk is supported in a Cisco 7401ASR router.
Information about CompactFlashDisks:
•The larger the CompactFlash Disk size, the longer the system boot time.
•The CompactFlash Disk supports online insertion and removal (OIR).
•Use the CompactFlash Disk to store your configuration files and Cisco IOS software image.
For complete information about using a CompactFlash Disk, see "Using the CompactFlash Disk."
For further installation procedures including rack-mounting or general workbench installation, see Chapter 2, "Rack-Mounting, Tabletop Installation, and Cabling."
Installing and Removing the Gigabit Interface Converter
For ease of installation, insert the Gigabit Ethernet Gigabit Interface Converter (GBIC) in the router while it is powered down and before placing it in a rack. For complete GBIC installation instructions, see the "Attaching the GBIC Interface Cables" section on page 2-17 and see the "Gigabit Ethernet GBIC Configurations and Port and Cabling Specifications" section.
Figure 1-5 Gigabit Interface Converter—GBIC
The Gigabit Ethernet Gigabit Interface Converter (GBIC) port is a 1000-Mbps optical interface in the form of an SC-type duplex port that supports IEEE 802.3z interfaces compliant with the 1000BASEX standard. Gigabit Interface Converter models WS-5484 or GBIC-SX, WS-G5486 or GBIC-LX/LH, and WS-G5487 or GBIC-ZX are supported in the Cisco 7401ASR router.
Note The GBIC must be installed before you connect the cables to it.
•You can install and remove GBICs with power on to the system.
•Disconnect all cables before removing or installing a GBIC. We strongly recommend that you do not install or remove the GBIC with optical fiber cables attached to it.
•GBICs are keyed to prevent incorrect insertion.
Warning Because invisible laser radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to laser radiation and do not stare into open apertures.
Warning Class 1 laser product.
Warning Class 1 LED product.
Figure 1-6 Inserting a GBIC into the Cisco 7401ASR Gigabit Ethernet Slot 0
1
|
Gigabit Interface Converter (GBIC)
|
4
|
GBIC port 1
|
2
|
Alignment groove
|
5
|
Plug
|
3
|
GBIC port 0
|
|
|
Use the following procedure to install a GBIC:
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Locate the label on the GBIC and turn the GBIC so the label is on top and the alignment groove is down.
Note The GBIC is keyed so that it cannot be inserted incorrectly.
Step 3 Insert the GBIC into GBIC slot 0 or 1. The tabs on either side of the GBIC snap into place when you have completely and properly inserted the GBIC.
Step 4 Repeat Step 2 and Step 3 if you are inserting a second GBIC.
Note Do not remove the plug from the GBIC optical bores until you are ready to install the network interface optical fiber cable. Save the plug for future use.
This completes the GBIC installation procedure.
Installing and Removing a Port Adapter or Service Adapter
The information in this section also applies to service adapters. For information about configuring a port adapter, see the port adapter documentation at: http://www.cisco.com/univercd/cc/td/doc/product/core/7200vx/portadpt/index.htm.
Warning When performing the following procedures, wear a grounding wrist strap to avoid ESD damage to the card. Some platforms have an ESD connector for attaching the wrist strap. Do not directly touch the midplane or backplane with your hand or any metal tool, or you could shock yourself.
Before removing any port adapter, gracefully shut down the interface so that thre is no traffic running through the port adapter when it is removed. Removing a port adapter when traffic is flowing through the ports can cause system disruption.
The Cisco 7401ASR router supports OIR of the port adapter. However, if you choose to power off the router to remove or install a port adapter, turn the power switch to the off position and then remove the power cable. After you have replaced the port adapter or inserted afiller panel, replace the power cable and then turn the power switch to the on position.
Note After powering off the router, wait at least 30 seconds before powering it on again.
Follow these steps for inserting and securing a port adapter:
Step 1 Attach an ESD wrist strap between you and an unpainted chassis surface. For wrist straps with a banana jack, insert the banana jack in its grounding hole located on the front of the chassis, near the STATUS LED and power switch.
Figure 1-7 Installing a Port Adapter or Service Adapter
1
|
Port adapter latch
|
3
|
Port adapter slot guide
|
2
|
Port adapter
|
4
|
Ground for ESD wrist strap banana jack
|
Step 2 Using a Phillips screwdriver, loosen the screw of the port adapter latch, and rotate the port adapter latch until it clears the faceplate of the port adapter. The latch can rotate 360o.
Step 3 Pull the port adapter about halfway out of the port adapter slot. (If you remove a port adapter filler plate, keep the blank port adapter for use in the router if you should ever remove the port adapter. The port adapter slot must always be filled.)
Step 4 With the port adapter halfway out of the slot, disconnect all cables from the port adapter. After disconnecting the cables, pull the port adapter from the chassis slot.
Step 5 Locate the port adapter slot guides inside the Cisco 7401ASR router. They are near the top, and are recessed about one-half inch.
Caution The port adapter must slide into the slot guides under the chassis lid. Do not allow the port adapter components to come in contact with the system board or the port adapter could be damaged.
Note If it is easier to attach the port adapter cables with the port adapter inserted halfway, attach the cables before seating the port adapter and securing the port adapter latch.
Step 6 Locate the port adapter slot guides. Carefully slide the port adapter into the port adapter slot and seat it. When installed, the port adapter input/output panel should be flush with the face of the router.
Step 7 Rotate the port adapter latch to the upright locked position and use a Phillips screwdriver to tighten the latch screw. Loosen the latch screw, if needed, to be able to rotate the latch over the port adapter. Then tighten the latch screw.
This completes the port adapter installation procedure.
Caution To ensure the proper flow of cooling air across the internal components, make sure a port adapter filler panel is installed in the unoccupied port adapter slot.
For further installation procedures, see Chapter 2, "Rack-Mounting, Tabletop Installation, and Cabling."
Replacing the SDRAM DIMM
The information in this section provides instructions for replacing the SDRAM DIMM and is included for future use. The memory configuration you ordered is installed in the Cisco 7401ASR router.
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
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.
Warning When performing the following procedures, wear a grounding wrist strap to avoid ESD damage to the card. Some platforms have an ESD connector for attaching the wrist strap. Do not directly touch the system board with your hand or any metal tool, or you could shock yourself.
To replace or upgrade the SDRAM DIMM, follow these instructions:
Removing the Cover
The Cisco 7401ASR router cover fits tightly on the chassis. Follow these instructions to remove the cover:
Step 1 Power off the router by turning the power switch to the off position.
Note After powering off the router, wait at least 30 seconds before powering it on again.
Step 2 Remove any cables from the Cisco 7401ASR router, including the power cables. For AC power supplies, unplug the AC power cord from the power outlet. For DC power supplies, to ensure that all power is off, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the off position, and tape the switch handle of the circuit breaker in the off position.
Figure 1-8 Removing the Screws and Releasing the Cover
1
|
Cover screws
|
2
|
Cover removal slot and flatblade screwdriver
|
Step 3 Remove the Cisco 7401ASR router from the rack, if it is rack-mounted.
Step 4 Remove the four screws holding the cover to the chassis.
Note If needed, use a Phillips recess flat-head screw, M3.5 x 6-mm long, type B thread, steel with black zinc coating, as a replacement.
Step 5 Insert a flat-blade screwdriver in each of the side cover removal slots.
Step 6 Push the screwdriver blade against the cover latches to release the cover, as shown in Figure 1-8. The cover moves forward about one-quarter inch.
Figure 1-9 Removing the Cover
Step 7 Slide the cover forward about one-half inch and then lift it from the chassis.
Removing and Installing the SDRAM DIMM
Follow these instructions to remove and replace the SDRAM DIMM:
Figure 1-10 Removing and Replacing the DIMM
1
|
Spring latch on DIMM socket
|
3
|
Notch
|
2
|
DIMM
|
|
|
Step 1 Attach an ESD-preventative wrist strap between you and an unpainted router surface.
Step 2 Locate the DIMM.
Step 3 Press both spring latches outward to release the DIMM. See Figure 1-10.
Step 4 Gently pull the DIMM free from the DIMM socket, taking care not to touch the pins that insert into the socket. Place the DIMM in an anti-static bag.
Caution Forcing the DIMM into the socket can damage the DIMM. Use the notches on the DIMM to align the DIMM with the DIMM socket before inserting it.
Step 5 Locate the notches and align the DIMM with the DIMM socket.
Step 6 Gently insert the new DIMM, taking care not to damage the pins on the edge of the DIMM.
Step 7 Press the spring latches to lock the DIMM in place.
Replacing the Cover
Step 1 Replace the cover; lower it onto the chassis and push the cover toward the rear of the chassis to lock it in place.
Step 2 Replace and tighten the four cover screws.
Replace the Cisco 7401ASR router in the rack. See Chapter 2, "Rack-Mounting, Tabletop Installation, and Cabling" for instructions.
For memory specifications and configurations, see Appendix A, "Specifications" the "Memory Specifications and Configurations" section.
