Cisco Systems uBR-E-16U プリント

All upstream ports are light blue.

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. 

Make sure that you are properly 
grounded.

Disconnect all the cables from the cable 
interface line card.

Unscrew the captive installation screws on 
the faceplate. 

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

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

Place the card on an antistatic surface with 
the component side facing up.

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

For proper cooling and airflow, 
always install a line card cover in an 
empty line card slot. 

Check the following:

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. 

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

Are all enabled LEDs on?

If yes, the system is operational. 

If no, check the following possibilities:

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. 

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.

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: 

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

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

For more information, refer to the following at 

Cisco CMTS Error Messages

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)

Upstream (US0–US5) QPSK 

8-, 16-, 32-, 64-QAM

Downstream (DS)

64-QAM, 256-QAM

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.