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QUICK START GUIDE
Cabling the Cisco uBR10-MC5X20S/U/H Cable
Interface Line Card with Universal Cable
Holder—UCH2
Last Updated: May 14, 2009
OL-24878-01
Contents
This document contains the following information:
• Feature Description
• Installing the Cables
• Installing the UCH
• Removing the UCH
• Removing the Cables
• Troubleshooting
• Related Documentation
Americas Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
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Feature Description
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Feature Description
The Cisco uBR10-MC5X20S, U and H cable interface line cards use 75–ohm precision video coax
cables and 75–ohm MCX connectors to connect to the CMTS.
This document describes how to install and remove cables and the second generation universal cable
holder (UCH2).
Figure 1 shows the cards in a Cisco uBR10012 router.
Figure 1 Cisco uBR10-MC5X20S/U/H Cards
2
Note Quad-shield coaxial cable bundles for the Cisco uBR10-MC5X20S/U/H cable interface line card can be
purchased from Cisco, with the Universal Cable Holders (UCH) already connected to the coaxial cable
bundles. Alternatively, custom-length quad-shield coaxial cable bundles can be purchased from third
party vendors, with the UCH either connected to the cable bundles or provided as separate components.
The cable bundle for RF card to HFC plant has five 5-bundle MCX connectors attached to three UCH2
units on one end, and F connectors attached to the other end. The cable bundle is 9.84 feet (3 m) long
and is referred to by the Cisco part number CAB-RFSW520QTIMF2.
Note In European markets only, you must use the quad-shielded cable kit with the Cisco uBR10-MC5X20H.
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
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Feature Description
Figure 2 shows the cable bundle for Cisco uBR10-MC5X20S/U/H cable interface line card to hybrid
fiber-coaxial (HFC) plant that has 25 F connectors attached to one end and three UCH2 units attached
to the other end. This cable is 9.84 feet (3 m) long and the part number is CAB-RFSW520QTIMF2.
Figure 2 Cable Bundle with UCH2 Units and F Connectors
1
2
275702
1 F Connectors 2 UCH2
Figure 3 shows the cable bundle for Cisco uBR10-MC5X20S/U/H cable interface line card to RF switch
that has three UCH2 units attached to one end and two RF switch header blocks attached to the other
end. This cable is 3.2 feet (1 m) long and the part number is CAB-RFSW520QTIMM2.
Figure 3 Cable Bundle with UCH2 Units and RF Switch Header Blocks
1
2
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
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275703
3
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Installing the Cables
275704
1
2
1 RF Switch Header Blocks 2 UCH2
Figure 4 shows the cable bundle for RF switch to HFC plant that has two RF switch header blocks
attached to one end and 25 F connectors attached to the other end. This cable is 9.84 feet (3 m) long and
the part number is CAB-RFSW520QTPMF2.
Figure 4 Cable Bundle with RF Switch Header Blocks and F Connectors
1 F Connectors 2 RF Switch Header Blocks
Note Customers purchasing custom-length quad-shield coaxial cable bundles from third party vendors can
purchase spare Universal Cable Holders and spare RF switch header blocks from Cisco. Please refer to
Table 3 for the applicable Cisco part numbers.
Tools required for cable installation include:
• 1/4-in. slotted screwdriver and T-10 TORX driver
Also see “Tool Manufacturers and Part Numbers.”
Note The following instructions describe the connection process for the customized RF cables and the
maintenance of the Cisco preconfigured cable bundles.
Installing the Cables
The UCH must be used for all Cisco uBR10-MC5X20S/U/H line card cable connections. Failure to use
the UCH may cause permanent
damage to the line card connectors and result in low or no RF output.
Step 1 Loosen the top screws and slide open the lock bar. (If the UCH2 is already installed in the line card, use
a screwdriver to slide open the bar. See Figure 8.)
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
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Installing the Cables
Step 2 Remove the ESD cap from a cable, and insert it into the hole in the UCH2. See Figure 5.
We recommend that the cables be installed in the UCH as shown in Table 1 and Tab l e 2.
Caution If using quad-shielded cables, make sure there is no heat-shrink wrap on the ends by the MCX
connectors.
Note Precision miniature video coaxial cables come in various colors, and you can use any cable color
combination. However, when you are connecting the Cisco uBR10-MC5X20S/U/H cable interface card
to the Cisco RF switch, we recommend that you install the cables in the UCH as listed in Tabl e 1.
Table 1 MC5X20 Dual/Qual Shielded Cable Ports and Cable Colors
Universal Cable Holder (1) Universal Cable Holder (2) Universal Cable Holder (3)
Line Card
Port
1
US
0
US1 White US11 Brown DS1 White
US2 Blue US12 Red DS2 Blue
US3 Green US13 White DS3 Green
US4 Yellow US14 Blue DS4 Yellow
US5 Violet US15 Green — —
US6 Orange US16 Yellow — —
US7 Black US17 Violet — —
US8 Grey US18 Orange — —
US9 Brown US19 Black — —
1. US = upstream
2. DS = downstream
Cable
Color
RF Switch
User Defined
Line Card
Port
Cable
Color
RF Switch
User Defined
Line Card
Port
Red US10 Grey DS20
Cable
Color
Red
RF Switch
User Defined
Table 2 Legacy 5-Color MC5X20 Quad-Shielded Cable Ports and Cable Colors
Universal Cable Holder (1) Universal Cable Holder (2) Universal Cable Holder (3)
Line Card
Port
1
US
0Red US10Red DS
Cable
Color
RF Switch
User Defined
US1 White US11 White DS1 White
US2 Blue US12 Blue DS2 Blue
US3 Green US13 Green DS3 Green
US4 Yellow US14 Yellow DS4 Yellow
US5 Red US15 Red — —
US6 White US16 White — —
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
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Line Card
Port
Cable
Color
RF Switch
User Defined
Line Card
Port
2
0Red
Cable
Color
RF Switch
User Defined
5
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Installing the UCH
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Table 2 Legacy 5-Color MC5X20 Quad-Shielded Cable Ports and Cable Colors (continued)
Universal Cable Holder (1) Universal Cable Holder (2) Universal Cable Holder (3)
Line Card
Port
US7 Blue US17 Blue — —
US8 Green US18 Green — —
US9 Yellow US19 Yellow — —
1. US = upstream
2. DS = downstream
Cable
Color
Step 3 Insert the cable completely into the UCH. (The cables will fit loosely in the holes until the lock bar is
RF Switch
User Defined
Line Card
Port
Cable
Color
RF Switch
User Defined
Line Card
Port
Cable
Color
closed in Step 5.)
Caution Do not kink the cables.
Figure 5 Inserting a Cable in the UCH2
RF Switch
User Defined
Step 4 Repeat this procedure for all of the cables.
Step 5 Ensure the cables are fully inserted in the UCH2 and slide the lock bar closed completely. (The lock bar
will not close if cables are not fully inserted or properly aligned.)
Step 6 Using the T-10 TORX driver tool tighten the screws on the lock bar (maximum torque—10 in-lbs).
Installing the UCH
After the cables are installed in the UCH, perform the following steps to prevent ESD damage to the line
card.
Note Before proceeding, remove the protective sticker covering the line card DS ports.
Step 1 Make sure that you are grounded using an ESD-preventive wrist or ankle strap.
Step 2 Attach a jumper cable to the ground point on the chassis.
Step 3 Briefly touch each cable’s center connector with the jumper cable to remove any built-up ESD potential.
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Removing the UCH
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Lead screw
Red triangle
Small pin
Shroud
Large pin
Red line
Cutout
Step 4 Position the UCH2 so the red line is on the same side as the red triangle on the faceplate.
Figure 6 Installing the UCH
Step 5
Align the end pins with the pin holes in the faceplate, and guide the UCH onto the faceplate.
Step 6 Hold the cables and UCH in place while finger tightening the leadscrew. Do not bend the cables at right
angles.
Step 7 Use the flathead screwdriver to tighten the leadscrew 10 in–lbs, (maximum torque 15 in.-lbs).
Caution Torquing the leadscrew to more than 20 in-lbs can cause the leadscrew to fail.
The UCH is fully engaged when the semi-circles on the shroud show metal and the red and black
lines are completely covered. See Figure 6.
Removing the UCH
Step 1 Make sure that you are grounded using an ESD-preventive wrist or ankle strap.
Step 2 Loosen the lead screw (counterclockwise) until it disengages from the faceplate.
Step 3 Gently pull the UCH straight away from the faceplate.
Note If the UCH does not easily pull away from the card, loosen the lead screw until it completely disengages
from the faceplate.
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Removing the Cables
US0
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US4
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US9
155819
Red line
Shroud
1/4 in. flathead
screwdriver
155820
Figure 7 Removing the UCH
Removing the Cables
Step 1 Use the T-10 TORX driver tool to loosen the lock bar on the side you want to remove cables.
Step 2 Slide the lock bar open by hand, or with a flathead screwdriver if the bar is stuck or hard to access. See
Figure 8.
(Make sure the lock bar is completely open or the cables will not release.)
Caution Be careful not to bend the cables.
Step 3 Carefully pull the cable out of the hole.
Figure 8 Sliding Open the Lock Bar
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Troubleshooting
Check the following:
1. Verify that the lead screw is tight.
2. Verify that the shroud fits snugly against the faceplate (the cutouts are closed).
3. Verify that the cables are properly seated and secure in the UCH.
If downstream RF power measurements are made, use these ESD precautions to prevent damage to the
product:
1. Check for a proper ground on the equipment and chassis before connecting any cables.
2. Ensure that there is a common ground between all the test equipment that you are using and the unit
under test.
3. Keep test cables as short as possible to limit static buildup.
4. Before attaching any test cables to the unit under test, momentarily ground the center pin of the test
cable to remove any ESD potential that may be present.
Contact Cisco TAC for further information:
http://www.cisco.com/tac
Troubleshooting
Tool Manufacturers and Part Numbers
Ta b le 3 To o l P a rt Nu m b e rs
Cisco Systems
1. Cable bundle for RF card to HFC plant: 3 UCH2 units attached
to one end and F connectors attached to the other end, 9.84 feet
(3 m) long.
2. Cable bundle for RF card to RF switch: 3 UCH2 units attached
to one end and 2 RF switch header blocks attached to the other
end, 3.2 feet (1 m) long.
3. Cable bundle for RF switch to HFC plant: 2 RF switch header
1. CAB-RFSW520QTIMF2=
2. CAB-RFSW520QTIMM2=
3. CAB-RFSW520QTPMF2=
4. CAB-520-MULT-UCH2
5. CAB-RFSW-MULT-HB
blocks attached to one end and F connectors attached to the
other end, 9.84 feet (3 m) long.
4. Universal Cable Holder for MCX connectors, qty 3 pcs
5. RF Switch header blocks for MCX connectors, qty 4 pcs
White Sands Engineering, Inc.
F and MCX crimper tool PN–ACT-483
MCX connector strip tool:
1. Dual-shielded cables
2. Quad-shielded cables
1. Dual-shielded F connector strip tool
2. Quad-shielded F connector strip tool
1. PN–CPT-7538-125
2. PN–CPT-7538-200Q
1. CPT-7538
2. CPT-7538Q
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
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Related Documentation
Table 3 Tool Part Numbers (continued)
75–ohm precision miniature video cable:
1. Dual-shielded single cable
2. Quad-shielded five pk
1. PN–WS940
2. PN–WS386
MCX fixed pin conn.:
1. Dual-shielded cable
2. Quad-shielded cable
1. PN–MCXFP
2. PN–MCXFPQ
F conn.:
1. Dual-shielded cable
2. Quad-shielded cable
1. PN–ASFP
2. PN–ASFPQ
Related Documentation
• Cisco uBR10-MC5X20S/U/H Cable Interface Line Card for the Cisco uBR10012 Router:
http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/ubr10012/frus/index.htm
• More Cisco cable products information:
http://www.cisco.com/en/US/products/
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as an RSS feed and set content to be
delivered directly to your desktop using a reader application. The RSS feeds are a free service. Cisco currently
supports RSS Version 2.0.
This document is to be used in conjunction with the documents listed in the “Related Documentation <required for IOS - optional for other>” section.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of
Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned 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. (1110R)
Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any
examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only.
Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.
© 2009 Cisco Systems, Inc. All rights reserved.
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
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