Cisco Systems GSR12-SFC, GSR12-CSC User Manual

Doc. No.

78-4343-02

Cisco 12012 Gigabit Switch Router Switch Fabric Cards Replacement Instructions

Product Numbers: GSR12-CSC=, GSR12-SFC= Document Order Number: DOC-784343=

Thisdocumentcoverstheinstallationandreplacementofclockandschedulercardsandswitchfabric cards in the Cisco 12012 Gigabit Switch Router (GSR). The Cisco 12012 is a member of the Cisco 12000 series of Internet routing products. The Cisco 12012 is aimed at scaling the Internet and enterprise backbones to speeds of OC-3/STM-1 (155 Mbps), OC-12/STM-4 (622 Mbps), and OC-48/STM-16 (2.4 Gbps). The Cisco 12012 is built around a high-speed switching fabric that is scalable from 5 to 60 Gbps, providing high-performance to support Internet Protocol (IP) -based local-area networks (LANs) and wide-area networks (WANs).

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The sections in this document include the following:

• Product Overview, page 2

• Safety Guidelines, page 4

• Tools and Parts Required, page 6

• Removing and Replacing a Card in the Lower Card Cage, page 7

• Checking the Installation, page 12

• FCC Class A Compliance, page 12

• Cisco Connection Online, page 13

Product Overview

The Cisco 12012 has two card cages; the upper card cage and the lower card cage. (Refer to Figure 1.) The upper card cage has 12 user-conﬁgurable slots available for line cards and a route processor (RP). One additional slot (rightmost slot) in the upper card cage is non-conﬁgurable; it is reserved for an alarm card. The line cards and the RP are not slot dependent; you can install the line cards and the RP in any of the ﬁrst 12 available slots.

Figure 1 Cisco 12012 Router—Front View

Top blower module (behind front cover)

Upper card cage

Air filter tray

ACTIVE CARRIER

EJECT

RX PKT

SLOT-0

SLOT-1

RESET

AUX

ACTIVE

CARRIER

RX PKT

RX CELL

CONSOLE

ACTIVE CARRIER RX PKT

LINK

ACTIVE

COLL

CARRIER

RX PKT

MII

RJ-45

ROUTE PROCESSOR

OC-12/STM-4 ATM

Q OC-3/STM-POS

OC-12/STM-4 POS

CRITICAL

MAJOR MINOR

ACO/LT

ALARM 1 ALARM 2

ENABLED

FAIL

CSC

1 0 1

SFC

ALARM

Frame

Lower card cage (behind air filter)

INPUT: 200-240V

INPUT:

10 A

200-240V

INPUT:

10 A

200-240V

50/60 HZ 2000 W

AC OK

OUTPUT FAIL

INPUT:

10 A

200-240V

50/60 HZ

10 A

2000 W

50/60 HZ 2000 W

AC OK

OK OUTPUT FAIL

OUTPUT FAIL

Power supply bay

50/60 HZ 2000 W

AC OK

OUTPUT FAIL

Bottom blower module (behind front cover)

H10476

The lower card cage, located behind the air ﬁlter,has ﬁve horizontal keyed slots for cards containing theswitchfabriccircuitry. The cards provide the physical pathwayfordatapacketexchangebetween the line cards in the upper card cage.

There are two types of cards installed in the lower card cage; the clock and scheduler card and the switch fabric card. The clock and scheduler card is keyed for installation in either of the upper two slots in the lower card cage. The switch fabric card is keyed for installation in the lower three slots of the lowercardcage.Thecardsinthe lowercardcagearealsocolor-coded;theclockandscheduler cards have a light blue label attached and the switch fabric cards have a magenta label attached. You match the label on the card with a similar color-coded label attached to the slot in the lower card cage.

2 Cisco 12012 Gigabit Switch Router Switch Fabric Cards Replacement Instructions

Clock and Scheduler Card

The Cisco 12012 requires that one clock and scheduler card be installed in the lower card cage. You can add one additional clock and scheduler card for redundancy and to increase the amount of data able to be transferred between line cards. The clock and scheduler card contains the following functionality:

• System clock—Sent to all line cards, RP, and switch fabric cards. The system clock synchronizes

data transfers between line cards or line cards and the RP through the switch fabric. In systems with redundant clock and scheduler cards, the two system clocks are synchronized. Should one system clock fail, the other clock takes over.

• Scheduler—Handles requests from the line cards for access to the switch fabric. When the

scheduler receives a request from a line card for switch fabric access, the scheduler determines when to allow the line card access to the switch fabric.

• Switch fabric—The circuitry that carries the user trafﬁc between line cards or between the RP

and a line card. The switch fabric on the clock and scheduler card is identical to the switch fabric on the switch fabric card.

Note In a system conﬁgured with only one clock and scheduler card, the clock and scheduler card

is installed in the second slot from the top in the lower card cage.

Product Overview

Switch Fabric Card

The switch fabric card contains only the switch fabric circuitry that carries the user trafﬁc between line cards or between the RP and the line cards. The card receives scheduling information and the system clock from the clock and scheduler card. The card is keyed to occupy slots 2, 3, and 4 (lower three slots) in the lower card cage. The system can run without any switch fabric cards installed. However, if you want to maximize the bandwidth and switching capacity of the system, you must install three switch fabric cards in the lower card cage.

Cisco 12012 Gigabit Switch Router Switch Fabric Cards Replacement Instructions 3

Safety Guidelines

Lower Card Cage Status LEDs

There are no status LEDs on the clock and scheduler card or switch fabric card, and the lower card cage slots are hidden behind the air ﬁlter. Status for the lower card cage slots is displayed on ﬁve pairs of LEDs located on the alarm card (installed in the rightmost slot in the upper card cage). Each pair of LEDs displays the status of one slot in the lower card cage (refer to Figure 2) as follows:

• Enabled—When this green LED is on, the card installed in that lower card cage slot is recognized

by the system and functioning correctly. When the LED is off, either the slot is empty or the card installed in the slot is faulty.

• Fail—When this red LED is on, a fault has been detected in the card installed in that lower card

cage slot. During normal operation, the fail LED should remain off.

Figure 2 Lower Card Cage Status LEDs on the Alarm Card

MAJOR

CRITICAL

Critical, major, and

minor alarm LEDs

MINOR

MAJOR

CRITICAL

Audio alarm cutoff switch

MINOR

ACO/LT

Pin 25

Pin 1

FAIL

ENABLED

Pin 1

ALARM 2ALARM 1

Pin 25

FAIL

ENABLED

Clock and scheduler card

and switch fabric card LEDs

CSC

SFC

ALARM

H10900

CSC

Safety Guidelines

Before you begin this installation, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment.

In addition, review the safety warnings listed in the document Regulatory Compliance and Safety Information for the Cisco 12012 Gigabit Switch Router (Document Number 78-4347-xx) that supports your Cisco 12012 before installing, conﬁguring, or maintaining the router.

Safety with Equipment

The following guidelines will help ensure your safety and protect the equipment. This list is not inclusive of all potentially hazardous situations, so be alert.

• Always disconnect all power cords and interface cables before moving the system.

• Keep tools and components away from walk areas.

• 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.

• Carefully examine your work area for possible hazards such as moist ﬂoors, ungrounded power

extension cables, and missing safety grounds.

4 Cisco 12012 Gigabit Switch Router Switch Fabric Cards Replacement Instructions

Safety with Electricity

The line cards, route processor (RP), switch fabric cards, alarm card, blower modules, and redundant power supplies are designed to be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system.

Follow these basic guidelines when working with any electrical equipment:

• Before beginning any procedures requiring access to the interior of the Cisco 12012, locate the

emergency power-off switch for the room in which you are working.

• Look carefully for possible hazards in your work area, such as moist ﬂoors, ungrounded power

extension cables, and missing safety grounds.

• If an electrical accident occurs, proceed as follows:

— Use caution; do not become a victim yourself. Disconnect power to the system. — If possible, send another person to get medical aid. Otherwise, assess the condition of the

— Determine if the person needs rescue breathing or external cardiac compressions; then take

• Disconnect all power and external cables before installing or removing a router.

Safety Guidelines

victim and then call for help.

appropriate action.

• Never assume that power has been disconnected from a circuit; always check.

• Do not perform any action that creates a potential hazard to people or makes the equipment

unsafe.

• Never install equipment that appears damaged.

In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source, but still connected to telephone or network wiring:

• Never install telephone wiring during a lightning storm.

• Never install telephone jacks in wet locations unless the jack is speciﬁcally designed for wet

locations.

• Never touch uninsulated telephone wires or terminals unless the telephone line has been

disconnected at the network interface.

• Use caution when installing or modifying telephone lines.

Cisco 12012 Gigabit Switch Router Switch Fabric Cards Replacement Instructions 5

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