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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 Removing the Card
6 Troubleshooting
7 Technical Specifications
8 Related Documentation
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
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28
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uBR - MCI6E
U
S
U
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U
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U
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U
S
0
1
2
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ENABLED
95801
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).