QUICK START GUIDE
Cabling the Cisco uBR10-MC5X20S/U/H Cable
Interface Line Card with Universal Cable
Holder—UCH1
First Published: November 22, 2002
Last Updated: April 08, 2011
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Americas Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Contents
Contents
Feature Description, page 2
Installing the Cables, page 3
Installing the UCH, page 4
Removing the UCH, page 5
Removing the Cables, page 6
Troubleshooting, page 7
Related Documentation, page 8
Warning
Caution
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Use an ESD-preventive wrist or ankle strap during the line card installation.
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 first generation universal cable holder
(UCH1).
Figure 1 shows the cards in a Cisco uBR10012 router.
Figure 1
Cisco uBR10-MC5X20S/U/H Cards
MA
INT
uBR10-MC5x20S-D
PO
WE
R
STA
TUS
Upstream
POWE
R
STATU
S
MAINT
POWE
R
STATU
S
MAINT
US1
US0
US3
US2
US1
US0
US3
US2
US1
US0
US4
US3
US2
US1
US0
US4
US3
US2
US1
US0
US4
US3
US2
US1
US0
US4
US4
US3
US2
US1
US4
US3
US2
US4
US3
US5
US6
US7
US8
US9
US5
US6
US7
US8
US9
US5
US6
US5
US7
US6
US5
US8
US7
US6
US5
US8
US7
US6
US5
US9
US8
US7
US6
US5
US9
US9
US8
US7
US6
US9
US8
US7
US9
US8
CISCO
10000
US4
CISCO
10000
CISCO
10000
CISCO
10000
FAIL
US9
US10
US10
TX
US11
TX
US11
US13
US12
US11
US14
US13
US12
US14
US13
US14
US19
US11
US10
US13
US12
US11
US10
US13
US12
US11
US15
US16
US17
US18
US19
US14
US15
US16
US17
US18
US13
US14
US15
US16
US17
US18
US12
US13
US14
US15
US16
US17
US11
US12
US13
US14
US15
US16
US17
US15
US16
US15
US16
SRP
US18
POS
E
SRP
US17
POS
E
US19
ENABL
US18
SRP
US17
POS
E
US19
ENABL
US18
SRP
US19
POS
E
US18
ENABL
US19
ENABL
US19
US10
RX
US18
US10
US12
RX
US17
US11
RX
US16
US10
US14
RX
US15
TX
US12
US10
TX
US9
R
STATU
S
MAINT
US0
US2
FAIL
US8
POWE
US1
FAIL
US7
R
STATU
S
MAINT
US0
FAIL
US6
POWE
uBR10-MC5x20S-D
US5
R
STATU
S
MAINT
uBR10-MC5x20S-D
US4
POWE
uBR10-MC5x20S-D
US3
R
STATU
S
MAINT
uBR10-MC5x20S-D
US2
POWE
uBR10-MC5x20S-D
US1
R
STATU
S
MAINT
uBR10-MC5x20S-D
US0
POWE
uBR10-MC5x20S-D
R
STATU
S
MAINT
uBR10-MC5x20S-D
POWE
US0
US1
US2
US3
US4
US19
TX
RX
CD
TX
RX
CD
TX
RX
CD
DS1
DS0
DS3
DS2
DS1
US13
US14
US15
US16
RF
RF
RF
RF
RF
RF
RF
RF
RF
DS4
RF
RF
RF
RF
RF
RF
DS0
RF
DS3
DS2
DS1
DS0
DS4
DS3
DS2
DS1
DS4
DS3
DS2
DS4
DS3
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
DS4
RF
US17
US18
US19
72783
DS0RF
DS1RF
DS2RF
DS3RF
DS4RF
RF
OC–48/STM–16 POS/SRP SM–LR
US12
RF
OC–48/STM–16 POS/SRP SM–LR
US11
RF
OC–48/STM–16 POS/SRP SM–LR
US10
RF
OC–48/STM–16 POS/SRP SM–LR
Downstream
US5
US6
US7
US8
US9
RF
SYNC
DS0
DS2
DS4
RF
PASS
THRU
WRAP
DS1
DS3
RF
SYNC
DS0
DS2
DS4
RF
PASS
THRU
WRAP
DS1
DS3
RF
SYNC
DS0
DS2
DS4
PASS
THRU
WRAP
SYNC
DS1
DS3
PASS
THRU
WRAP
DS0
DS2
TX
RF
DS1
RX
CD
DS0
DS0RF
DS1RF
DS2RF
DS3RF
DS4RF
The cables come in kits that consist of cable sets and spare F connectors.
The MC5X20 dual-shielded cable kit includes:
•
Two 10-bundle MCX to “F” conn., 3–m cables
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH1
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Installing the Cables
•
One 5-bundle MCX to “F” conn., 3–m cables
•
5 spare F connectors
The MC5X20 quad-shielded cable kit includes:
•
Five 5-bundle MCX to “F” conn., 3–m cables
•
Five spare F connectors
The cable kits do not contain the universal cable holders; however, the UCH is available with line card
accessory kits and spare cards. Or, the UCH2 is available as a spare.
Note
In European markets only, you must use the quad-shielded cable kit with the Cisco uBR10-MC5X20H.
Tools required for cable installation include:
• 1/4-in. slotted screwdriver and T-10 TORX driver
• Cable extractor tool
Also see “Tool Manufacturers and Part Numbers.”
Installing the Cables
The UCH must be used for all Cisco uBR10MC5X20S/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.
Caution
Step 1
Do not attempt to remove or install cables in the UCH1 if the UCH1 is attached to the faceplate.
Remove the cable clamp bar from the UCH1. See Figure 2.
Figure 2
Removing the Cable Clamp Bar
Cable clamp bar
Step 2
Caution
72778
T-10 TORX
driver tool
Remove the ESD cap from a cable, and insert it into the UCH. See Figure 3. We recommend that the
cables be installed in the UCH as shown in Table 1.
If using quad-shielded cables, make sure there is no heat-shrink wrap on the ends by the MCX
connectors.
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH1
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Installing the UCH
Table 1
US0–US9
US0 to US9–red, white, blue, green, yellow, violet, orange, black, gray, brown, respectively.
US10–US19
US10–grey; US11–brown; US12 to US19–red, white, blue, green, yellow, violet, orange, black,
respectively.
DS0–DS4
DS0 to DS4–red, white, blue, green, yellow, respectively.
Table 2
Step 3
Caution
Port—Dual/Quad-Shielded Cable Colors
Port—Legacy 5-Color Quad-Shielded Cable Colors
US0–US9
US0 to US9–red, white, blue, green, yellow, red, white, blue, green, yellow, respectively.
US10–US19
US10 to US19–red, white, blue, green, yellow, red, white, blue, green, yellow, respectively.
DS0–DS4
DS0 to DS4–red, white, blue, green, yellow, respectively.
Wiggle the cable until you feel the connector click into place in the UCH.
Be sure to not kink the cables.
Inserting a Cable in the UCH1
72654
Figure 3
Step 4
Repeat this procedure for all of the cables.
Step 5
Align the cables with the slots in the UCH1 and clamp bar, and then replace the clamp bar.
Step 6
Using the T-10 TORX driver tool, tighten the screws on the clamp bar (maximum torque—10 in-lbs).
See Figure 2.
Installing the UCH
After the cables are installed in the UCH, follow these 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.
Step 4
Align the red line on the UCH with the red triangle on the faceplate.
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH1
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Removing the UCH
Figure 4
Installing the UCH
Small pin
Red line
Red triangle
US0
US1
US2
US3
US4
US5
US6
Shroud
US7
US8
US9
Cutout
Lead screw
72782
Large pin
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 UCH1 is fully engaged when the retractable shroud is aligned with the black lines. See
Figure 5.
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.
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH1
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Removing the Cables
Figure 5
Removing the UCH
Black line
US0
US1
US2
Shroud
US3
US4
US5
US6
US7
US8
72780
US9
1/4 in. flathead
screwdriver
Removing the Cables
Step 1
Caution
Use the T-10 TORX driver tool to remove the cable clamp bar.
Be careful not to bend the cables.
Step 2
Hold the UCH1 in your hand and place the extraction tool over the connector that you are removing. See
Figure 6.
Step 3
Carefully push down on the extraction tool, turning slightly to disengage the spring.
Step 4
Push the cable out of the hole. There is a click when it disengages from the UCH1.
Using the Cable Extraction Tool
72779
Figure 6
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Troubleshooting
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
Tool Manufacturers and Part Numbers
Table 3
Tool Part Numbers
Cisco Systems
MC5X20 dual-shielded
MC5X20 quad-shielded
UCH2
CAB-RFSW520TPMF=
CAB-RFSW520QTPMF=
CAB-520-UCH2
White Sands Engineering, Inc.
Cable extraction tool
PN–REMTOOL
F and MCX crimper tool
PN–ACT-483
MCX connector strip tool:
Dual-shielded cables
Quad-shielded cables
PN–CPT-7538-125
PN–CPT-7538-200Q
75–ohm precision miniature
video cable:
Dual-shielded single cable
Quad-shielded five pk
YR-46940
YR-50386 (red, white, blue, green, yellow)
YR-52310 (violet, orange, brown, black, gray)
Quad-shielded five pk
MCX fixed pin conn:
Dual-shielded cable
Quad-shielded cable
PN–MCXFP
PN–MCXFPQ
F connector.:
Dual-shielded cable
Quad-shielded cable
PN–ASFP
PN–ASFPQ
Dual-shielded F connector
strip tool
CPT-7538
Quad-shielded F connector
strip tool
CPT-7538Q
Johnson Components
Univ. cable holder (UCH1)
PN–133-8447-026
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH1
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Related Documentation
Related Documentation
•
Installing Cisco uBR10-MC5X20S/U/H Cable Interface Line Cards - Quick Start Guide
http://www.cisco.com/en/US/docs/interfaces_modules/cable/broadband_processing_engines/ubr10
_mc5x20s_u_h/quick/start/520u_qsg.html
•
Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
http://www.cisco.com/en/US/docs/cable/cmts/ubr10012/installation/guide/hig.html
Obtaining Documentation and Submitting a Service Request
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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
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Copyright © 2002-2011 Cisco Systems, Inc. All rights reserved.
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH1
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