Cisco Systems uBR-MC28X User Manual

Size:
256.38 Kb
Download

QUICKSTARTGUIDE

InstallingCisco uBR-MC28U/X

and uBR-E-28UCable Interface

Line Cards

1Purpose

2Feature Description

3Prerequisites

4Installing the Card

5Removing the Card

6Troubleshooting

7Technical Specifications

8Related Documentation

Warning

Only trained and qualified

 

personnel should be allowed to

 

install, replace, or service this

 

product; and should be properly

 

grounded before handling this

 

ESD-sensitiveproduct.

 

 

1 Purpose

This quick start guide shows you how to install a Cisco uBR-MC28cable interface line card in the Cisco uBR7200 series router.

2 Feature Description

The Cisco uBR-MC28cable interface line card improves RF performance, supports spectrum management, increases system performance and supports online insertion and removal (OIR). The line card is available in three configurations:

Cisco uBR-MC28U—withan onboard upconverter and green end tabs

Cisco uBR-MC28X—withoutan onboard upconverter and with yellow end tabs

Cisco uBR-E-28U—withan onboard upconverter and slate blue end tabs

3 Prerequisites

The Cisco NPE-400or CiscoNPE-G1or CiscoNPE-G2must be used with this card.

If you are replacing a Cisco uBR-MC28Ccard with a CiscouBR-MC28U/X/Ecard, you must reconfigure the card. We strongly recommend that you reload the Cisco 7200 series router when replacing a cable interface line card with a card of a different type.

4 Installing the Card

Note TheuBR-E-28Uis anentry-levelversion of MC28U, for the uBR7225 chassis. The extra guide pins in the line card prevents it from being plugged into a different chassis.

Step 1 Make sure that you are grounded.

Step 2 Use both hands to grasp the card by its metal carrier edges and align the card with the slot guides, component side up.

Step 3 With the metal carrier aligned in the slot guides (seeFigure 1), gently slide the card into the card slot until you can feel it seated in the backplane connectors.

Step 4 Tighten the captive screws.

Note The captive screws provide grounding for the electromagnetic interference (EMI) shielding.

Figure 1 Installing the Card in the Chassis

88984

 

 

 

 

 

 

uBR - MC28U

DS0-

DS1-

US0

US1

US2

US3

US6

US7

 

RF

RF

Note The cable interface line card insertion/removal method is the same for all Cisco uBR7200 series routers.

Cabling

Caution Do not mix upstream (US) ports in domain 0 with US ports in domain 1 (seeFigure 2).

Figure 2 Domain 0 and Domain 1

 

 

 

 

 

 

 

 

uBR - MC28U

DS0-

DS1-

US0

US1

US2

US3

US4

US5

US6

US7

 

 

RF

RF

 

 

 

 

 

 

 

 

 

 

ENABLED

 

 

 

 

 

 

88983

Domain 0

Domain1

 

Cabling the Cisco uBR-MC28U/E-28U

The Cisco uBR-MC28U/E-28Uline card has an onboard upconverter. To cable the card:

Step 1 Connect the downstream (DS) cables to the DS ports(DS0–DS1).RF DS port rings and end tabs are green (slate blue in the case ofE-28Ucard). SeeFigure 5.

Step 2 Connect the upstream cables to the US ports(US0–US7).

Cabling the Cisco uBR-MC28X

The Cisco uBR-MC28Xline card does not have an onboard upconverter. The card may require up to 10 dB of attenuation due to a higher IF output power (higher then legacy Cisco line cards). To cable the card:

Step 1 Connect the DS cables to the DS ports on the card(DS0–DS1).

IF DS port rings and end tabs are yellow. See Figure 3.

Step 2 Add RF attenuators as required to get the correct IF output. Insert the attenuator between the DS IF output cable and the upconverter. SeeFigure 3.

Americas Headquarters

Cisco Systems, Inc. 170 West Tasman Drive

San Jose, CA 95134-1706USA http://www.cisco.com Tel: 408526-4000

800 553-NETS(6387) Fax: 408527-0883

Cisco, Cisco Systems, the Cisco logo, and the Cisco Systems logo are registered trademarks or trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries. All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0705R)

© 2009 Cisco Systems, Inc. All rights reserved.

Printed in the USA on recycled paper containing 10% postconsumer waste.

DOC-7815730=

OL-19040-01

Step 3 Connect the US cables to the US ports on the card(US0–US7).All US ports are light blue.

Figure 3 Inserting an Attenuator

 

 

 

 

 

 

 

 

uBR - MC28X

DS0-

DS1-

US0

US1

US2

US3

US4

US5

US6

US7

 

 

IF

IF

+42 dBmV

ENABLED

88993

 

 

Connector

Upconverter

Attenuator

Cable

5 Removing the Card

To prevent the alarms from activating, administratively shut down the card using the shutdown command in interface configuration mode before removing it from the chassis.

Step 1 Make sure that you are properly grounded.

Step 2 Disconnect all the cables from the cable interface line card.

Step 3 Unscrew the captive installation screws on the faceplate.

Figure 4 Removing the Card from the Chassis

88982

 

 

 

 

 

 

 

 

uBR - MC28U

DS0-

DS1-

US0

US1

US2

US3

US4

US5

US6

US7

 

RF

RF

Step 4 Grasp the handle and carefully pull the card out of its slot (seeFigure 4).

Caution Always handle the card by the carrier edges and handle; never touch the cable interface line card’s components or connector pins. For proper cooling and airflow, always install a line card cover in an empty line card slot.

Step 5 Place the card on an antistatic surface with its components facing upward.

Note If the card is being returned to the factory, immediately place it in a static shielding bag and proper packaging for protection.

6 Troubleshooting

1.Make sure that the card is securely seated in the chassis.

If the captive screws do not tighten all the way, the card is not properly seated in the chassis or backplane. Carefully pull the card halfway out of the slot, reinsert it, and tighten the captive installation screws.

Caution A partially seated line card can cause the router to reboot.

2.Are all enabled LEDs on? If yes, the system is operational.

If no, check the following possibilities:

a.If the card has been enabled and configured for operations, the enabled LED remains on.

b.If a port is enabled but its enabled LED is still off, check if the card has pulled away from the router. Reseat the card in its slot. (Do not have to turn off the system power to do this.} After the system reinitializes the interfaces, the enabled LED on the card should come on.

3.If the enabled LED remains off after the above checks, it is likely that the system has detected a processor hardware failure. Go to the Cisco TAC website http://www.cisco.com/tac for further information and help.

Figure 5

LEDs

 

 

 

 

 

 

 

 

Enabled

 

 

 

 

 

 

 

 

 

LED

 

 

 

 

 

 

 

 

uBR - MC28U

D

D

US0

US1

US2

US3

US4

US5

US6

US7

S0

S1

F

F

 

 

 

 

 

 

 

 

-R

-R

 

 

 

 

 

 

 

 

 

ENABLED

 

Upstream

Downstream

88985

 

LEDs

LEDs

 

US0-US7

DS0-DS1

 

Table 1

LEDs/Status

 

 

 

 

 

 

 

LED/Status

 

Description

 

 

 

 

 

ENABLED—green

Card operating normally

 

ENABLED—off

Card not enabled

 

 

 

 

 

US—green

 

Upstream enabled

 

US—off

 

Upstream not enabled

 

 

 

 

 

DS—green

 

Downstream enabled

 

DS—off

 

Downstream not enabled

 

 

 

 

 

 

7 Technical Specifications

Table 2

Technical Specifications

 

 

 

Description

 

Order Num/ Specifications

 

 

Cisco uBR-MC28U,

UBR-MC28U,

with upconverter

UBR-MC28U=

Cisco uBR-MC28X,

UBR-MC28X,

without upconverter

UBR-MC28X=

Cisco uBR-E-28U,

UBR-E-28U

with upconverter

UBR-E-28U=

 

 

 

 

Blank covers

UBR-MC-COVER=

 

 

Weight—MC28U/E-

6 lbs (2.72 kg)

28U

 

4.75 lbs (2.15 kg)

Weight—MC28X

 

 

 

Power consumption

 

MC28U/E-28U

80 Watts (273 BTU/h)

MC28X

 

50 Watts (170.6 BTU/h)

 

 

 

Table 2 Technical Specifications (continued)

Description

Order Num/ Specifications

 

 

Output—MC28U/E-

+50 to 61 dBmV at RF

28U

 

Output—MC28X

+42 dBmV at IF (+/-2dB)

 

 

 

Modulation

 

 

 

Upstream (US0–US7)

QPSK 8–,16–,32–,

 

64–QAM

 

 

Downstream

64–QAM,256–QAM

(DS0–DS1)

 

 

 

RF output power range—50to 61 dBmV

 

 

Frequency range

 

Upstream

5–65MHz

Downstream

70–860MHz

 

 

The Cisco uBR-MC28U/X/E-28Uline card is compatible with most cable systems worldwide, including but not limitedto—AsiaPacific, Europe, and the Americas. See Cisco IOS release notes for more information.

8 Related Documentation

For more information, refer to the following at Cisco.com:

Cisco uBR7200 Universal Broadband Series Hardware Installation Guide

Cisco uBR7200 Series Cable Interface Line Card Hardware Installation Guide

Cisco uBR7200 Series Universal Broadband Routers

For the 1–yearwarranty information, visit the following URL:

http://www.cisco.com/en/US/products/prod_w arranties_listing.html