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
Feature Description
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
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
US5
US7
US6
US5
US8
US7
US6
US9
US8
US9
US7
US8
US9
US5
US6
US7
US8
US9
US5
CISCO
10000
US4
US6
US5
US7
US6
US5
US8
US7
US6
US5
US9
US8
US7
US6
US9
US8
US7
US9
US8
CISCO
10000
CISCO
10000
CISCO
10000
FAIL
US9
US10
TX
US11
US10
US12
US11
US10
US13
US12
US11
US10
US13
US12
US11
US10
US13
US12
US11
US10
US14
US13
US12
US11
US10
US14
US13
US12
US11
US10
US14
US14
US13
US12
US11
US14
US13
US12
US19
US17
US18
US19
US16
US17
US18
US15
US16
US17
US18
US14
US15
US16
US17
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
RX
US18
US15
RX
US16
RX
US15
RX
US16
TX
US15
US17
TX
US14
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
DS0
DS3
DS2
DS1
DS0
DS4
DS4
DS3
DS2
DS1
DS3
DS2
DS4
DS3
US13
US14
US15
US16
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
DS4
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
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
US5
US6
US7
US8
US9
DS0RF
DS1RF
DS2RF
DS3RF
DS4RF
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
2
OL-24878-01
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
275702
2
1
2 UCH2
F Connectors
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
275703
2
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
OL-24878-01
3
Installing the Cables
1
2 UCH2
RF Switch Header Blocks
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
275704
2
1 F Connectors
Note
2
RF Switch Header Blocks
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
4
OL-24878-01
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 Table 2.
Caution
Note
If using quad-shielded cables, make sure there is no heat-shrink wrap on the ends by the MCX
connectors.
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 Table 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
Cable
Color
Line Card
Port
Cable
Color
Line Card
Port
Cable
Color
US10
Red
US10
Grey
DS20
Red
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
—
—
RF Switch
User Defined
RF Switch
User Defined
RF Switch
User Defined
1. US = upstream
2. DS = downstream
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
Cable
Color
Line Card
Port
Cable
Color
Line Card
Port
Cable
Color
US10
Red
US10
Red
DS20
Red
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
—
—
RF Switch
User Defined
RF Switch
User Defined
RF Switch
User Defined
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
OL-24878-01
5
Installing the UCH
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
Cable
Color
Line Card
Port
Cable
Color
Line Card
Port
Cable
Color
US7
Blue
US17
Blue
—
—
US8
Green
US18
Green
—
—
US9
Yellow
US19
Yellow
—
—
RF Switch
User Defined
RF Switch
User Defined
RF Switch
User Defined
1. US = upstream
2. DS = downstream
Step 3
Caution
Insert the cable completely into the UCH. (The cables will fit loosely in the holes until the lock bar is
closed in Step 5.)
Do not kink the cables.
Inserting a Cable in the UCH2
155826
Figure 5
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.
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
6
OL-24878-01
Removing the UCH
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
Red line
Small pin
US0
US1
Red triangle
US2
US3
US4
US5
US6
US7
Shroud
US8
US9
Cutout
Lead screw
155818
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 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.
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
OL-24878-01
7
Removing the Cables
Figure 7
Removing the UCH
Red line
US0
US1
US2
Shroud
US3
US4
US5
US6
US7
US8
155819
US9
1/4 in. flathead
screwdriver
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
Step 3
Be careful not to bend the cables.
Carefully pull the cable out of the hole.
Sliding Open the Lock Bar
155820
Figure 8
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
8
OL-24878-01
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
1.
2.
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.
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
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
1.
CAB-RFSW520QTIMF2=
2.
CAB-RFSW520QTIMM2=
3.
CAB-RFSW520QTPMF2=
4.
CAB-520-MULT-UCH2
5.
CAB-RFSW-MULT-HB
White Sands Engineering, Inc.
F and MCX crimper tool
PN–ACT-483
MCX connector strip tool:
1.
Dual-shielded cables
1.
PN–CPT-7538-125
2.
Quad-shielded cables
2.
PN–CPT-7538-200Q
1.
Dual-shielded F connector strip tool
1.
CPT-7538
2.
Quad-shielded F connector strip tool
2.
CPT-7538Q
Cabling the Cisco uBR10-MC5X20S/U/H Cable Interface Line Card with Universal Cable Holder—UCH2
OL-24878-01
9
Related Documentation
Table 3
Tool Part Numbers (continued)
75–ohm precision miniature video cable:
1.
Dual-shielded single cable
1.
PN–WS940
2.
Quad-shielded five pk
2.
PN–WS386
MCX fixed pin conn.:
1.
Dual-shielded cable
1.
PN–MCXFP
2.
Quad-shielded cable
2.
PN–MCXFPQ
F conn.:
1.
Dual-shielded cable
1.
PN–ASFP
2.
Quad-shielded cable
2.
PN–ASFPQ
Related Documentation
•
Cisco uBR10-MC5X20S/U/H Cable Interface Line Card for the Cisco uBR10012 Router:
http://www.cisco.com/en/US/docs/interfaces_modules/cable/broadband_processing_engines/ubr10
_mc5x20s_u_h/installation/guide/ubrmc520.html
•
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 a Really Simple Syndication (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” 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
10
OL-24878-01