Cisco uBR-MC16U/X, uBR-MC16X, uBR-MC16U Quick Start Manual

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OL-18974-01

QUICK START GUIDE

Installing Cisco uBR-MC16U/X
and uBR-E-16U
Cable Interface Line Cards

1 Purpose

2 Feature Description

3 Prerequisites

4 Installing the Card

5 Removin g the Ca rd

6 Troubleshooting

7 Technical Specifications

8 Relate d Docume ntatio n

Warning

Only trained and qualified
personnel should be allowed to
install, replace, or service this
product.

Caution You must be properly grounded

before handling this
ESD-sensitive product.

1 Purpose

This quick start guide shows you how to install a
Cisco uBR-MC16 cable interface line card in the
Cisco uBR7200 series router.

2 Feature Description

The Cisco uBR-MC16 cable 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-MC16U—With an onboard
upconverter and green end tabs

• Cisco uBR-E-16U—With an onboard
upconverter and slate blue end tabs

• Cisco uBR-MC16X—Without an onboard
upconverter and yellow end tabs

3 Prerequisites

• The Cisco NPE-400 or the Cisco NPE-G1 or
the Cisco NPE-G2 network processing engine
must be used with this card.

• If you are using the Cisco uBR-MC16 line card
to replace a different type of card, you must
reconfigure the MC16U/X/E card.

• We recommend that you reload a Cisco 7200
series router when replacing a cable interface
line card with a card of a different type.

4 Installing the Card

Note The uBR-E-16U line card is an entry-level

version of the uBR-MC16U line card, and
fits only in the uBR7225VXR chassis.

Step 1 Make sure that you are grounded.

Step 2 Use both hands to grasp the line card by its

metal carrier edges and align the line card
with the slot guides, component side up.

Step 3 With the metal carrier aligned in the slot

guides (see Figure 1), briskly slide the card
into the card slot until you feel it seat 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

Note The cable interface line card insertion and

removal method is the same for all the
Cisco uBR7200 series routers.

Cabling

• Cisco uBR-MC16U—Green tabs

• Cisco uBR-E-16U—Slate blue tabs

• Cisco uBR-MC16X—Yellow tabs

Figure 2 Cisco uBR-MC16U

95800

US1

US2

US3

US4

US5

US6

US7

D
S

0

-R
F

D
S

1

-R
F

uB

R

- M

C

28U

D

S

uBR - MCI6E

U

S

U

S

U

S

U

S

U

S

US

0

1

2

3

4

5

ENABLED

uBR - MC16E

US0

US1

US2

US3

US4

US5

DS

ENABLED

Cabling the Cisco uBR-MC16U/E-16U

The Cisco uBR-MC16U/E-16U cable interface line
card has an onboard upconverter. To cable the
card:

Step 1 Connect the downstream cable to the

downstream (DS) port.

The RF downstream port rings and end
tabs are green for uBR-MC16U (see
Figure 2) and slate blue for uBR-E-16U.

Step 2 Connect the upstream cables to the

upstream ports (US0—US5).

Cabling the Cisco uBR-MC16X

The Cisco uBR-MC16X cable interface line card
(not supported on Cisco uBR7225VXR) does not
have an onboard upconverter. The card may
require up to 10-dB of attenuation due to a higher
IF output power (higher than legacy Cisco cable
interface line cards). To cable the card:

Step 1 Connect the downstream cable to the

downstream (DS) port on the card.

The IF downstream port ring 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 downstream IF output cable
and the upconverter. See Figure 3.

Step 3 Connect the upstream cables to the

upstream ports on the card (US0—US5).

Figure 3 Inserting an Attenuator

Note All upstream ports are light blue.

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

Step 4 Grasp the handle and carefully pull the

card out of its slot (see Figure 4).

uBR - MC16X

US0

US1

US2

US3

US4

US5

DS

ENABLED

95804

Upconverter

Attenuator

Cable

Connector

95802

US0

US1

US2

US3

US4

US5

US6

US7

ENABLED

DS0-RF

DS1-RF

uBR - MC28U

DS

uBR - MCI6E

US

US

US

US

US

US

0

1

2

3

4

5

ENABLED

Caution Always handle the cable interface line

card by the carrier edges and handle;
never touch the card's components or
connector pins.

Step 5 Place the card on an antistatic surface with

the component side facing up.

Note If the card is being returned to the factory,

immediately place it in a static shielding
bag and proper packaging for protection.

Caution For proper cooling and airflow,

always install a line card cover in an
empty line card slot.

6 Troubleshooting

Check the following:

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. Verify that the card has been enabled and

configured for operation. The enabled
LED remains off when a card has not been
configured and enabled.

b. If a port is enabled but its corresponding

enabled LED is still off, check to see if the
card has pulled away from the backplane.
Reseat the card in its slot. (You 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.

Contact Cisco TAC for further information
and help. To access the Cisco TAC website, use
the URL: http://www.cisco.com/tac

Figure 5 LEDs

7 Technical Specifications

Ta b l e 1 L E D s / S t a t u s

LED/Status Description

ENABLED—Green
ENABLED—Off

Card operating normally
Card not enabled

US—Green
US—Off

Upstream enabled
Upstream not enabled

DS—Green
DS—Off

Downstream enabled
Downstream not enabled

Ta b l e 2 Tec hn ic al S p e c i f ic a t i o n s

Description Order Num/ Specifications

Cisco uBR-MC16U,
with upconverter

Cisco uBR-E-16U,
with upconverter

Cisco uBR-MC16X,
without upconverter

UBR-MC16U,
UBR-MC16U=

UBR-E16U, UBR-E16U=

UBR-MC16X,
UBR-MC16X=

95803

uBR - MC16E

US0

US1

US2

US3

US4

US5

DS

ENABLED

Downstream

LEDs

DS

Enabled LED

Upstream

LEDs

US0-US5

8 Related Documentation

• Cisco uBR7200Series Universal Broadband

Hardware Installation Guide

• Cisco uBR7200 Series Cable Interface Line

Card Installation Guide

• Cisco uBR7200 Series Software Configuration

Guide

• Cisco IOS CMTS Cable System Messages

Guide

• Cisco CMTS Feature Guide

For information about the 1–year warranty, see the
following URL:

http://www.cisco.com/en/US/products/prod_warra
nties_listing.html

Blank covers UBR-MC-COVER=

Weight—MC16U/
E-16U
Weight—MC16X

5.25 lbs (2.38 kg)

4.75 lbs (2.16 kg)

Power

MC16U/E-16U
MC16X

62 Watts (211.6 BTU/h)
47 Watts (160.4 BTU/h)

RF output power range—50 to 61 dBmV

Output—MC16U/
E-16U
Output—MC16X

+50 to 61 dBmV at RF

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

Modulation

Upstream (US0–US5) QPSK

8-, 16-, 32-, 64-QAM

Downstream (DS) 64-QAM, 256-QAM

Frequency range

Upstream
Downstream

5–65 MHz
70–860 MHz

The Cisco MC16 line card is compatible with
most cable systems worldwide, including but not
limited to Asia Pacific, Europe, and the Americas.
See Cisco IOS release notes for more information.

Table 2 Technical Specifications (continued)

Description Order Num/ Specifications