Table Of Contents
Cabling the Cisco uBR 3x10 RF Switch
Overview
Cables and Equipment
Cable Kit Part Numbers
Other Tools and Equipment
Upconverters and Attenuators
Installing the Header Blocks on the Cisco uBR 3x10 RF Switch
Cabling the Cisco uBR 3x10 RF Switch with the Cisco uBR10-LCP2-MC16x or the Cisco uBR10-LCP2-MC28C Cable Interface Line Cards in a Cisco uBR10012 CMTS
Cisco uBR10-LCP2-MC16x Cable Interface Line Card
Cisco uBR10-LCP2-MC28C Cable Interface Line Card
Cabling the Working and Protect Line Cards to the RF Switch
Cabling the DS Ports to the Input Ports on the Upconverter
Cabling the Output Ports from the Upconverter to the RF Switch
Cabling the Output RF Switch (CABLE PLANT to HUB)
Cabling the Cisco uBR 3x10 RF Switch with Cisco uBR-MC5X20S/U/H Cable Interface Line Cards in the Cisco uBR10012 CMTS
Cabling the Working and Protect Line Cards to the RF Switch
Cabling the RF Switch Output (CABLE PLANT to HUB)
Cabling the Cisco uBR 3x10 RF Switch with Cisco uBR-MC16x Cable Interface Line Cards in the Cisco uBR7246VXR CMTS
Cabling the Working Line Card (VXR1-VXR4)
Cabling the Protect Line Cards (VXR 5)
Cabling DS Ports to the Input Ports on the Upconverter
Cabling the Output Ports (Upconverter to RF Switch)
Cabling the RF Switch Output (CABLE PLANT to HUB)
Cabling the Cisco uBR 3x10 RF Switch with Cisco uBR-MC28x Cable Interface Line Cards in the Cisco uBR7246VXR CMTS
Cabling the Working Line Card (VXR1-VXR4) to the RF Switch
Cabling the Protect Line Cards (VXR 5)
Cabling DS Ports to the Input Ports on the Upconverter
Cabling the Output Ports (Upconverter to RF Switch)
Cabling the RF Switch Output (CABLE PLANT to HUB)
Powering On the RF Switch
Troubleshooting
Quick Start Guide
Cabling the Cisco uBR 3x10 RF Switch
Warning 
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
1 Overview
The RF switch is designed to work with both the Cisco uBR7246VXR cable modem termination system (CMTS) and the Cisco uBR10012 CMTS in a cable headend or hub to provide N+1 redundancy for applications such as Voice over IP (VoIP). The cabling scenarios presented here are designed to help you cable the cards to the RF switch and upconverter (when used). Refer to the specific card and CMTS information to help you cable the Cisco uBR 3x10 RF Switch to cable interface line cards.
The following configurations are discussed:
•Cabling the Cisco uBR 3x10 RF switch to a Cisco uBR10-LCP2-MC16x line card installed in a Cisco uBR10012 CMTS
•Cabling the Cisco uBR 3x10 RF switch to a Cisco uBR10-LCP2-MC28C line card installed in a Cisco uBR10012 CMTS
•Cabling the Cisco uBR 3x10 RF switch to a Cisco uBR10-MC5X20S/U/H line card installed in a Cisco uBR10012 CMTS
•Cabling the Cisco uBR 3x10 RF switch to a Cisco uBR-MC16x line card installed in a Cisco uBR7246VXR CMTS
•Cabling the Cisco uBR 3x10 RF switch to a Cisco uBR-MC28x line card installed in a Cisco uBR7246VXR CMTS
Tip The CMTS, PROTECT, and CABLE PLANT MCX connections are accessed from the rear of the RF switch chassis.
Figure 1 Rear View of the Cisco uBR-3x10 RF Switch
1
|
Mounting brackets
|
3
|
PROTECT MCX connector location
|
2
|
CMTS (working) MCX connector location
|
4
|
CABLE PLANT MCX connector location
|
Refer to the rack-mounting quick start guides for information about installing the Cisco uBR 3x10 RF Switch in a telco rack.
•See Rack-Mounting the Cisco uBR 3x10 RF Switch with the Cisco uBR10012 CMTS, at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/rfswitch/ub10swrk.htm
•See Rack-Mounting the Cisco uBR 3x10 RF Switch with the Cisco uBR7246VXR CMTS, at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/rfswitch/vxrrack.htm
For warranty information, see the Cisco uBR 3x10 RF Switch Roadmap documentation, at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/rfswitch/rdmp310.htm
For information about the Vecima upconverter, go to the following URL:
http://www.vecimanetworks.com/
2 Cables and Equipment
The cables approved for use in this Cisco N+1 redundancy solution, are Mini Precision RG59 95 percent tinned copper braid with 100 percent foil shield. This cable is SDI rated with a 1 MHz to 3 GHz rating.
Cable Kit Part Numbers
•CAB-RFSW-3X10-10T (bundled cable kit: 10-m, RFS to HUB, MCX to F). The kit also includes 13 extra F-connectors and 2 single 10-m cables
•CAB-RFSW-3X10-T (bundled cable kit: 1.2-m, RFS to UPx, MCX to F)
•CAB-RFSW520TIMM (bundled cable kit: 1-m, MCX to MCX)
•CAB-RFSW520TMPF (bundled cable kit: 3-m, MCX to F) kit includes 28 extra F-connectors
Note We recommend that you tighten the F-connectors to a value between 10 (recommended) and 15 (maximum) inch-pounds (1.1298 and 1.7339 Nm).
•8 RF cable kits:
CAB-RFSW520TIMM (MC5X20S/U to RFS, dual-shielded, two 10-bundle, one 5-bundle)
or
CAB-RFSW520QTIMM (MC5X20S/U/H to RFS, quad-shielded, five 5-bundle)
•30 header blocks (for the CMTS, PROTECT, CABLE PLANT sections on the RF switch)
•Flat-blade screwdriver
•T-10 Torx screwdriver for UCH cable installation
Cisco cables are color-coded for easy reference and installation. The cable color corresponds to a specific port on the card. The tables include a column for users to define ports and color definitions.
See Table 1 for a list of the cable ports and associated cable color applicable when using legacy 5-color quad-shielded cables.
See Table 2 for a list of the cable ports and associated cable color applicable when using 10-color dual/qual-shielded cables.
Table 1 MC5X20 Legacy 5-color Quad-Shielded Cable Ports and Cable Colors
Universal Cable Holder (1)
|
Universal Cable Holder (2)
|
Universal Cable Holder (3)
|
Line Card Port
|
Cable Color
|
RF Switch User Defined
|
Line Card Port
|
Cable Color
|
RF Switch User Defined
|
Line Card Port
|
Cable Color
|
RF Switch
User Defined
|
US1 0
|
Red
|
|
US10
|
Red
|
|
DS2 0
|
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
|
|
—
|
—
|
|
US7
|
Blue
|
|
US17
|
Blue
|
|
—
|
—
|
|
US8
|
Green
|
|
US18
|
Green
|
|
—
|
—
|
|
US9
|
Yellow
|
|
US19
|
Yellow
|
|
—
|
—
|
|
Table 2 MC5X20 Ten-color Dual/Quad-Shielded Cable Ports and Cable Colors
Universal Cable Holder (1)
|
Universal Cable Holder (2)
|
Universal Cable Holder (3)
|
Line Card Port
|
Cable Color
|
RF Switch User Defined
|
Line Card Port
|
Cable Color
|
RF Switch User Defined
|
Line Card Port
|
Cable Color
|
RF Switch
User Defined
|
US1 0
|
Red
|
|
US10
|
Grey
|
|
DS2 0
|
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
|
Gray
|
|
US18
|
Orange
|
|
—
|
—
|
|
US9
|
Brown
|
|
US19
|
Black
|
|
—
|
—
|
|
Other Tools and Equipment
Custom cables or cable components such as header blocks, crimping tools, or connectors are available from custom cable fabricators such as WhiteSands Engineering (telephone: 1 800 586 7377), or at the following URL:
http://www.whitesandsengineering.com/
WhiteSands Part Numbers:
•MCXHEADERBK—Header blocks
•REMTOOL- MCX removal tool for MCX or RF switch header block
•MCXFP—MCX connectors for dual-shielded cables
•MCXFPQ MCX connectors for quad-shielded cables
•MCXF/FF—Adapters, MCX female connectors to F female connectors
•ASFP—F-connectors for dual-shielded
•ASFPQ - F connectors for quad-shielded
•ACT-483—Crimper for F-connectors and MCX connectors
•CPT-7538-125—Stripper for MCX connector
•CPT-7538Q—Stripper for F-connectors (quad-shielded)
• CPT-7538—Stripper for F connectors (dual-shielded)
•CPT-7538-200Q—Stripper for MCX connector (quad-shielded)
Upconverters and Attenuators
The Cisco uBR-MC16U cable interface line card and the Cisco uBR-MC28U cable interface line card have onboard upconverters. Upconverters are not required when these cards are used in the Cisco uBR7246VXR CMTS. However, due to a higher IF output (+42 dBmV) on other Cisco uBR-MC16 and MC28 line cards, a 10-dB attenuator may be required for UPx IF inputs.
The line cards that may require a 10-db attenuator between the DS port and the IF input on the upconverter include:
•Cisco uBR-MC16x (C, E, S, and X)
•Cisco uBR-MC28x (C and X)
•Cisco uBR10-LCP2-MC16x (C, S, and E)
•Cisco uBR10-LCP2-MC28C
Note Vecima upconverters are used in these examples. Some other upconverters may not require the use of attenuators.
3 Installing the Header Blocks on the Cisco uBR 3x10 RF Switch
The RF cables are connected to the CMTS, PROTECT, and CABLE PLANT portions of the Cisco uBR 3x10 RF Switch using the header blocks. Header blocks are installed on the RF switch at the following locations:
•CMTS—RF cables connect to working cable interface line cards and to IF-to-RF upconverters.
•PROTECT—RF cables connect to protecting cable interface line cards.
•CABLE PLANT—RF cables connect to the cable headend or hub.
Equipment
•Header blocks
•Flat-blade screwdriver
Tip The number of header blocks depends on the number of RF switches and line cards used. For example, if you are using one RF Switch and eight line cards, you will need 18 header blocks.
Step 1 With the beveled edge of the header block at the top, line up the two alignment pins on the header block with the two holes corresponding to the RF connector group under the CMTS, PROTECT, or CABLE PLANT section of the Cisco uBR 3x10 RF Switch.
Step 2 Press the header block into place, using equal pressure on both the upper and lower portions of the header block.
Step 3 Use a flat-blade screwdriver to tighten the captive installation screws at both the top and bottom of the header block to prevent accidental disconnections.
Note Tighten the header blocks to the Cisco uBR 3x10 RF Switch only after gently pulling on the cables to be sure that they are firmly seated in the header block.
Caution Do not overtighten the captive screws. We recommend that you tighten the screws to 5 to 7 inch-pounds
(0.5647 to 0.7909 Nm)
Figure 2 Header Block Description
4 Cabling the Cisco uBR 3x10 RF Switch with the Cisco uBR10-LCP2-MC16x or the Cisco uBR10-LCP2-MC28C Cable Interface Line Cards in a Cisco uBR10012 CMTS
A single Cisco uBR 3x10 RF Switch is cabled to cable interface line cards installed in the Cisco uBR10012 router, providing a redundancy scheme in which one protect line card (one of the eight, usually 5/1) supports from one to seven working line cards in the same chassis. The Cisco uBR10012 router supports up to eight cable interface line cards.
•The Cisco uBR10-LCP2-MC16x (C, E, and S) line cards have one downstream and six upstream cable interfaces for a total of 8 downstream and 48 upstream interfaces in the chassis.
•The Cisco uBR10-LCP2-MC28C line cards have two downstream and eight upstream cable interfaces for a total of 16 downstream and 64 upstream interfaces in the chassis.
Note Keep in mind that like cards back up like cards. For example, a Cisco uBR10-LCP2-MC16C line card is required to backup Cisco uBR10-LCP2-MC16C line cards.
Cisco uBR10-LCP2-MC16x Cable Interface Line Card
Figure 3 Table 2Cabling the Cisco uBR 3x10 RF Switch to the Cisco uBR10-LCP2-MC16x Line Cards in the Cisco uBR10012 CMTS
Table 3 Sample Mapping of a Cisco uBR10-LCP2-MC16x Cable Interface Line Card to the Cisco uBR 3x10 RF Switch
Connect to the Cable Interface on the CMTS
|
|
RFS (Color)
|
Connect to the Cable Interface on the CMTS
|
US0
|
A (Red)
|
H (Yellow)
|
US4
|
US1
|
B (White)
|
I (Violet)
|
US5
|
US2
|
C (Blue)
|
J
|
(Unused upstream)
|
US3
|
D (Green)
|
K
|
(Unused upstream)
|
(Unused upstream)
|
E
|
L
|
(Unused upstream)
|
DS0
|
F (Gray)
|
M
|
(Unused downstream)
|
(Unused downstream)
|
G
|
N
|
(Not connected)
|
Cisco uBR10-LCP2-MC28C Cable Interface Line Card
Figure 4 Cabling the Cisco uBR 3x10 RF Switch to the Cisco uBR10-LCP2-MC28C Line Card in the Cisco uBR10012 CMTS
Table 4 Sample Mapping of a Cisco uBR-MC28C Line Card to the Cisco uBR 3x10 RF Switch
Connect to the Cable Interface on the CMTS
|
|
RFS (Color)
|
Connect to the Cable Interface on the CMTS
|
US0 of first MAC domain
|
A (Red)
|
H (Yellow)
|
US0 of second MAC domain
|
US1 of first MAC domain
|
B (White)
|
I (Violet)
|
US1 of second MAC domain
|
US2 of first MAC domain
|
C (Blue)
|
J (Orange)
|
US2 of second MAC domain
|
US3 of first MAC domain
|
D (Green)
|
K (Black)
|
US3 of second MAC domain
|
(Unused upstream)
|
E
|
L
|
(Unused upstream)
|
DS0
|
F (Gray)
|
M (Brown)
|
DS1
|
(Unused downstream)
|
G
|
N
|
(Not connected)
|
Cabling the Working and Protect Line Cards to the RF Switch
This section describes cabling the working and protect line cards to the RF switch.
Tip Use the card in slot 5/1 for the protect card. See Figure 3 for slot number locations.
Equipment
•8 RF cable bundle kits, CAB-RFSW-3X10-T (1.2-m, MCX to F)
•8 header blocks (installed)
•Flat-blade screwdriver (extended length)
To cable the line card, complete the following steps:
Step 1 Connect the cables to the cable interface line card connectors (upstream and downstream). Tighten the F-connectors no more than 10 (recommended) to 15(maxium) inch-pounds (1.1298 to 1.7339 Nm).
Step 2 Run the cable bundle (behind the cable management bracket if it was installed) up to the CMTS header blocks on the RF switch.
Tip See Table 5 and Figure 5 for cable interface MCX connection locations. The gray and brown cables have F-connectors instead of MCX connectors. These cables are used to connect to the upconverter (UPx).
Step 3 Install the cables in the CMTS header block in the order that they are mapped.
a. Push the MCX connector into the hole in the header block until you can feel it snap into place.
b. Gently wiggle the connector to make sure that the connection is secure.
Step 4 Repeat Step 1 through Step 3 for the other line cards.
Step 5 Repeat Step 1 through Step 3 for the PROTECT (P1A-P1H) header block.
Step 6 Gently pull on the cables to be sure that they are firmly seated in the header blocks.
Step 7 Use a flat-blade screwdriver to tighten the captive installation screws at both the top and the bottom of the header block to prevent accidental disconnection.
Caution Do not overtighten the captive screws. We recommend that you tighten the captive screws to 5 to 7 inch-pounds (0.5647 to 0.7909 Nm).
Caution To ensure proper installation and avoid poor connections, be sure that the cables are not positioned at too acute an angle.
Figure 5 Cisco uBR 3x10 RF Switch—MCX Connection Locations
Table 5 Cabling the Cable Interface Line Card to the RF Switch
Cisco uBR10-LCP2-MC16x Line Cards
|
Cisco uBR10-LCP2-MC28C Line Cards
|
LC/Slot
|
RFS connection
|
a
|
LC/Slot
|
RFS connection
|
a
|
LC1—8/0 working
|
1A-1D, 1H, 1I
|
|
LC1—8/0 working
|
1A-1D, 1H-IK
|
|
LC2—8/1working
|
2A-2D, 2H, 2I
|
|
LC2—8/1working
|
2A-2D, 2H- 2K
|
|
LC3—7/0working
|
3A-3D, 3H, 3I
|
|
LC3—7/0working
|
3A-3D, 3H-3K
|
|
LC4—7/1working
|
4A-4D, 4H, 4I
|
|
LC4—7/1working
|
4A-4D, 4H- 4K
|
|
LC5—6/0working
|
5A-5D, 5H, 5I
|
|
LC5—6/0working
|
5A-5D, 5H-5K
|
|
LC6—6/1working
|
6A-6D, 6H, 6I
|
|
LC6—6/1working
|
6A-6D, 6H-6K
|
|
LC7—5/0working
|
7A-7D, 7H, 7I
|
|
LC7—5/0working
|
7A-7D, 7H-7K
|
|
LC8—5/1protect
|
P1A-P1D, P1H, P1I
|
|
LC8—5/1protect
|
P1A-P1D, P1H-P1K
|
|
Cabling the DS Ports to the Input Ports on the Upconverter
Equipment
These cables are part of cable bundle kit CAB-RFSW-3X10-T.
Tip Alternate gray and brown cables when cabling the Cisco uBR10-LCP2-MC28C card.
To cable the downstream ports to the upconverter, complete the following steps.
Step 1 Connect the cables to the downstream ports (MC16x-DS0, MC28C-DS0, DS1) on the line cards.
Step 2 Run the cables up to the upconverter.
Step 3 Connect the cables to the input ports (top) on the upconverter. Add attenuators, if required.
See Table 6 and Figure 6 when cabling a Cisco uBR10-LCP2-MC16x line card.
See Table 7 and Figure 7 when cabling a Cisco uBR10-LCP2-MC28C line card.
Figure 6 Cabling the Input Ports on the Upconverter (MC16x)
Table 6 Cabling the DS Ports to the Input Ports on the Upconverter
Color
|
Line Card Slot
|
UPx Conn
|
a
|
Color
|
Line Card Slot
|
UPx Conn
|
a
|
Gray
|
8/0—working
|
15
|
|
Gray
|
6/0—working
|
7
|
|
Gray
|
8/1—working
|
13
|
|
Gray
|
6/1—working
|
5
|
|
Gray
|
7/0—working
|
11
|
|
Gray
|
5/0—working
|
3
|
|
Gray
|
7/1—working
|
9
|
|
Gray
|
5/1—protect
|
1
|
|
Figure 7 Cabling the Input Ports on the Upconverter (MC28C)
Table 7 Cabling the DS Ports to the Input Ports of the Upconverter
Color
|
Line Card Slot
|
DS Port
|
UPx Conn
|
a
|
|
Color
|
Line Card Slot
|
DS Port
|
UPx Conn
|
a
|
Brown
|
8/0—working
|
DS1
|
16
|
|
|
Brown
|
6/0—working
|
DS1
|
8
|
|
Gray
|
8/0—working
|
DS0
|
15
|
|
|
Gray
|
6/0—working
|
DS0
|
7
|
|
Brown
|
8/1—working
|
DS1
|
14
|
|
|
Brown
|
6/1—working
|
DS1
|
6
|
|
Gray
|
8/1—working
|
DS0
|
13
|
|
|
Gray
|
6/1—working
|
DS0
|
5
|
|
Brown
|
7/0—working
|
DS1
|
12
|
|
|
Brown
|
5/0—working
|
DS1
|
4
|
|
Gray
|
7/0—working
|
DS0
|
11
|
|
|
Gray
|
5/0—working
|
DS0
|
3
|
|
Brown
|
7/1—working
|
DS1
|
10
|
|
|
Brown
|
5/1—protect
|
DS1
|
2
|
|
Gray
|
7/1—working
|
DS0
|
9
|
|
|
Gray
|
5/1—protect
|
DS0
|
1
|
|
Cabling the Output Ports from the Upconverter to the RF Switch
Equipment
•8 RF cables for Cisco uBR10-LCP2-MC16x cards (F-connector to MCX connector-gray)
•16 RF cables for Cisco uBR10-LCP2-MC28C cards (F-connector to MCX connector-gray, brown)
To cable the output ports on the upconverter to the RF switch, complete the following steps:
Step 1 Connect the cable to the output connector (1-lower) on the upconverter.
Step 2 Connect the cable to the appropriate MCX connection on the CMTS header block.
For Cisco uBR10-LCP2-MC16x cards, see Table 8.
For Cisco uBR10-LCP2-MC28C cards, see Table 9.
Step 3 Repeat Step 1 through Step 3 for the remaining cables.
Figure 8 Cabling the Output Ports (UPx to RF Switch)
Table 8 Upconverter Output Cables to the Working Plant on the RF Switch (for MC16x Line Cards)
Color
|
UPx Output
|
RFS CMTS
|
LC Slot (DS0)
|
a
|
UPx Output
|
RFS CMTS
|
LC Slot (DS0)
|
a
|
Gray
|
15
|
1F
|
8/0-working (DS0)
|
|
7
|
5F
|
6/0-working (DS0)
|
|
Gray
|
13
|
2F
|
8/1-working (DS0)
|
|
5
|
6F
|
6/1-working (DS0)
|
|
Gray
|
11
|
3F
|
7/0-working (DS0)
|
|
3
|
7F
|
5/0-working (DS0)
|
|
Gray
|
9
|
4F
|
7/1-working (DS0)
|
|
1
|
1PF
|
5/1-protect (DS0)
|
|
Table 9 Upconverter Output Cables to the Working Plant on the RF Switch (for MC28C Line Cards)
Color
|
UPx Output
|
RFS CMTS
|
LC Slot (DS)
|
a
|
Color
|
UPx Output
|
RFS CMTS
|
LC Slot (DS)
|
a
|
Brown
|
16
|
1M
|
8/0—working(DS1)
|
|
Brown
|
8
|
5M
|
6/0—working (DS1)
|
|
Gray
|
15
|
1F
|
8/0—working(DS0)
|
|
Gray
|
7
|
5F
|
6/0—working (DS0)
|
|
Brown
|
14
|
2M
|
8/1—working(DS1)
|
|
Brown
|
6
|
6M
|
6/1—working (DS1)
|
|
Gray
|
13
|
2F
|
8/1—working(DS0)
|
|
Gray
|
5
|
6F
|
6/1—working (DS0)
|
|
Brown
|
12
|
3M
|
7/0—working(DS1)
|
|
Brown
|
4
|
7M
|
5/0—working (DS1)
|
|
Gray
|
11
|
3F
|
7/0—working(DS0)
|
|
Gray
|
3
|
7F
|
5/0—working (DS0)
|
|
Brown
|
10
|
4M
|
7/1—working(DS1)
|
|
Brown
|
2
|
1PM
|
5/1—protect (DS1)
|
|
Gray
|
9
|
4F
|
7/1—working(DS0)
|
|
Gray
|
1
|
1PF
|
5/1—protect (DS0)
|
|
Cabling the Output RF Switch (CABLE PLANT to HUB)
The output cables are connected to the CABLE PLANT section of the RF switch. The CABLE PLANT header blocks are cabled in the opposite sequence to the CMTS and PROTECT header blocks (see Figure 9).
Equipment
•7 RF cable bundle kits, CAB-RFSW-3X10-10T (10-m, MCX connector to F-connector—multicolor)
•7 header blocks (installed)
Tip For shorter cables (3m) use cable kit CAB-RFSW5X20TPMF.
To cable the output connections, complete the following steps:
Step 1 Install the output cables in the header blocks.
Step 2 Run the output cables (H-A) from header blocks to splitters, US laser receivers, or the low side of the diplex filters
Step 3 Run the output cables (F) or (M-F) to the splitters and combiners, DS laser transmitters, or the high side of the diplex filters.
Figure 9 RF Switch Cable Plant Outputs (Turquoise)
5 Cabling the Cisco uBR 3x10 RF Switch with Cisco uBR-MC5X20S/U/H Cable Interface Line Cards in the Cisco uBR10012 CMTS
The Cisco uBR10012 router supports up to eight Cisco uBR10-MC5X20S/U/H cable interface line cards, each featuring five downstream and twenty upstream cable interfaces for a total of 40 downstream and 160 upstream interfaces in the chassis. Two Cisco uBR 3x10 RF Switchs are used in this configuration, allowing you to employ a redundancy scheme in which one protect cable interface line card (one of the eight, usually 5/1) supports from one to seven working line cards in the same chassis.
Note If you are replacing a Cisco uBR10-MC5X20S or U card with a Cisco uBR10-MC5X20U or H card, you must reconfigure the card.
Figure 10 Cabling the Cisco uBR 3x10 RF Switch with the Cisco uBR10-MC5X20S/U/H in the Cisco uBR10012 CMTS
Cabling the Working and Protect Line Cards to the RF Switch
This section describes cabling the working and protect line cards to the RF switch. This procedure assumes that the RF cables are already installed in the universal cable holder 1 or 2 (UCH1 or UCH2) and mounted on the Cisco uBR-MC5X20S/U/H cable interface line card. If the cables have not been installed in the UCH1 or UCH2 and mounted on the line card, refer to the Cisco uBR-MC5X20S/U/H Cable Interface Line Card documentation at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/ubr10012/frus/ubrmc520.htm
Note The UCH1 or UCH2 is supplied with the Cisco uBR10-MC5X20 S/U/H cable interface line card.
Tip You can cable the header blocks first, then mount them on the RF switch. Do not fully tighten the header blocks to the RF switch before gently pulling on the cables to be sure that they are firmly seated.
Equipment
To connect the header blocks and install the cables on the RF switch, complete the following steps:
Step 1 Install the header blocks on the RF switches. See the "Installing the Header Blocks on the Cisco uBR 3x10 RF Switch" section.
Step 2 Run the cables (behind the cable management bracket if it is installed) up to the CMTS header blocks on the RF switch.
Step 3 Insert the MCX connectors into the header blocks. See Figure 10.
For MCX cabling locations, refer to:
Table 10 for slot 8/0 and 8/1 working line card RF switch connections.
Table 11 for slot 7/0 and 7/1 working line card RF switch connections.
Table 12 for slot 6/0 and 6/1 working line card RF switch connections.
Table 13 for slot 5/0 and 5/1 working and protect line card RF switch connections.
Step 4 Gently pull on the cables to be sure that they are firmly seated in the header blocks.
Caution To ensure proper installation and avoid poor connections, be sure that the cables are not positioned at too acute an angle.
Step 5 Use a flat-blade screwdriver to tighten the captive installation screws at both the top and bottom of the header block to prevent accidental disconnections. Do not over-tighten the captive screws.
Caution Do not overtighten the captive screws. We recommend that you tighten the captive screws to 5 to 7 inch-pounds (0.5647 to 0.7909 Nm).
Table 10 RF Switch Ports and Line Card Ports for Line Card Slots 8/0 and 8/1
Ports
|
Cable Color
|
Working Line Card Slot 8/0—Ports
|
RF Switch—Port
|
a
|
Working Line Card Slot 8/1—Ports
|
RF Switch—Port
|
a
|
To upstream 0-9
|
Red
|
US0
|
RFS-2-1A
|
|
US0
|
RFS2-2A
|
|
White
|
US1
|
RFS-2-1B
|
|
US1
|
RFS-2-2B
|
|
Blue
|
US2
|
RFS-2-1C
|
|
US2
|
RFS-2-2C
|
|
Green
|
US3
|
RFS-2-1D
|
|
US3
|
RFS-2-2D
|
|
Yellow
|
US4
|
RFS-2-1H
|
|
US4
|
RFS-2-2H
|
|
Violet
|
US5
|
RFS-2-1I
|
|
US5
|
RFS-2-2I
|
|
Orange
|
US6
|
RFS-2-1J
|
|
US6
|
RFS-2-2J
|
|
Black
|
US7
|
RFS-2-1K
|
|
US7
|
RFS-2-2K
|
|
Gray
|
US8
|
RFS-2-1E
|
|
US8
|
RFS-2-2E
|
|
Brown
|
US9
|
RFS-2-1L
|
|
US9
|
RFS-2-2L
|
|
| |
To upstream 10-19
|
Gray
|
US10
|
RFS-1-1E
|
|
US10
|
RFS-1-2E
|
|
Brown
|
US11
|
RFS-1-1L
|
|
US11
|
RFS-1-2L
|
|
Red
|
US12
|
RFS-1-1A
|
|
US12
|
RFS-1-2A
|
|
White
|
US13
|
RFS-1-1B
|
|
US13
|
RFS-1-2B
|
|
Blue
|
US14
|
RFS-1-1C
|
|
US14
|
RFS-1-2C
|
|
Green
|
US15
|
RFS-1-1D
|
|
US15
|
RFS-1-2D
|
|
Yellow
|
US16
|
RFS-1-1H
|
|
US16
|
RFS-1-2H
|
|
Violet
|
US17
|
RFS-1-1I
|
|
US17
|
RFS-1-2I
|
|
Orange
|
US18
|
RFS-1-1J
|
|
US18
|
RFS-1-2J
|
|
Black
|
US19
|
RFS-1-1K
|
|
US19
|
RFS-1-2K
|
|
| |
To downstream 0-4
|
Red
|
DS0
|
RFS-2-1F
|
|
DS0
|
RFS-2-2F
|
|
White
|
DS1
|
RFS-2-1M
|
|
DS1
|
RFS-2-2M
|
|
Blue
|
DS2
|
RFS-1-1G
|
|
DS2
|
RFS-1-2G
|
|
Green
|
DS3
|
RFS-1-1F
|
|
DS3
|
RFS-1-2F
|
|
Yellow
|
DS4
|
RFS-1-1M
|
|
DS4
|
RFS-1-2M
|
|
Table 11 RF Switch Ports and Line Card Ports for Line Card Slots 7/0 and 7/1
Ports
|
Cable Color
|
Working Line Card Slot 7/0—Ports
|
RF Switch—Port
|
a
|
Working Line Card Slot 7/1—Ports
|
RF Switch—Port
|
a
|
To upstream 0-9
|
Red
|
US0
|
RFS-2-3A
|
|
US0
|
RFS-2-4A
|
|
White
|
US1
|
RFS-2-3B
|
|
US1
|
RFS-2-4B
|
|
Blue
|
US2
|
RFS-2-3C
|
|
US2
|
RFS-2-4C
|
|
Green
|
US3
|
RFS-2-3D
|
|
US3
|
RFS-2-4D
|
|
Yellow
|
US4
|
RFS-2-3H
|
|
US4
|
RFS-2-4H
|
|
Violet
|
US5
|
RFS-2-3I
|
|
US5
|
RFS-2-4I
|
|
Orange
|
US6
|
RFS-2-3J
|
|
US6
|
RFS-2-4J
|
|
Black
|
US7
|
RFS-2-3K
|
|
US7
|
RFS-2-4K
|
|
Gray
|
US8
|
RFS-2-3E
|
|
US8
|
RFS-2-4E
|
|
Brown
|
US9
|
RFS-2-3L
|
|
US9
|
RFS-2-4L
|
|
| |
To upstream 10-19
|
Gray
|
US10
|
RFS-1-3E
|
|
US10
|
RFS-1-4E
|
|
Brown
|
US11
|
RFS-1-3L
|
|
US11
|
RFS-1-4L
|
|
Red
|
US12
|
RFS-1-3A
|
|
US12
|
RFS-1-4A
|
|
White
|
US13
|
RFS-1-3B
|
|
US13
|
RFS-1-4B
|
|
Blue
|
US14
|
RFS-1-3C
|
|
US14
|
RFS-1-4C
|
|
Green
|
US15
|
RFS-1-3D
|
|
US15
|
RFS-1-4D
|
|
Yellow
|
US16
|
RFS-1-3H
|
|
US16
|
RFS-1-4H
|
|
Violet
|
US17
|
RFS-1-3I
|
|
US17
|
RFS-1-4I
|
|
Orange
|
US18
|
RFS-1-3J
|
|
US18
|
RFS-1-4J
|
|
Black
|
US19
|
RFS-1-3K
|
|
US19
|
RFS-1-4K
|
|
| |
To downstream 0-4
|
Red
|
DS0
|
RFS-2-3F
|
|
DS0
|
RFS-2-4F
|
|
White
|
DS1
|
RFS-2-3M
|
|
DS1
|
RFS-2-4M
|
|
Blue
|
DS2
|
RFS-1-3G
|
|
DS2
|
RFS-1-4G
|
|
Green
|
DS3
|
RFS-1-3F
|
|
DS3
|
RFS-1-4F
|
|
Yellow
|
DS4
|
RFS-1-3M
|
|
DS4
|
RFS-1-4M
|
|
Table 12 RF Switch Ports and Line Card Ports for Line Card Slots 6/0 and 6/1
Ports
|
Cable Color
|
Working Line Card Slot 6/0—Ports
|
RF Switch—Port
|
a
|
Working Line Card Slot 6/1—Ports
|
RF Switch—Port
|
a
|
To upstream 0-9
|
Red
|
US0
|
RFS-2-5A
|
|
US0
|
RFS-2-6A
|
|
White
|
US1
|
RFS-2-5B
|
|
US1
|
RFS-2-6B
|
|
Blue
|
US2
|
RFS-2-5C
|
|
US2
|
RFS-2-6C
|
|
Green
|
US3
|
RFS-2-5D
|
|
US3
|
RFS-2-6D
|
|
Yellow
|
US4
|
RFS-2-5H
|
|
US4
|
RFS-2-6H
|
|
Violet
|
US5
|
RFS-2-5I
|
|
US5
|
RFS-2-6I
|
|
Orange
|
US6
|
RFS-2-5J
|
|
US6
|
RFS-2-6J
|
|
Black
|
US7
|
RFS-2-5K
|
|
US7
|
RFS-2-6K
|
|
Gray
|
US8
|
RFS-2-5E
|
|
US8
|
RFS-2-6E
|
|
Brown
|
US9
|
RFS-2-5L
|
|
US9
|
RFS-2-6L
|
|
| |
To upstream 10-19
|
Gray
|
US10
|
RFS-1-5E
|
|
US10
|
RFS-1-6E
|
|
Brown
|
US11
|
RFS-1-5L
|
|
US11
|
RFS-1-6L
|
|
Red
|
US12
|
RFS-1-5A
|
|
US12
|
RFS-1-6A
|
|
White
|
US13
|
RFS-1-5B
|
|
US13
|
RFS-1-6B
|
|
Blue
|
US14
|
RFS-1-5C
|
|
US14
|
RFS-1-6C
|
|
Green
|
US15
|
RFS-1-5D
|
|
US15
|
RFS-1-6D
|
|
Yellow
|
US16
|
RFS-1-5H
|
|
US16
|
RFS-1-6H
|
|
Violet
|
US17
|
RFS-1-5I
|
|
US17
|
RFS-1-6I
|
|
Orange
|
US18
|
RFS-1-5J
|
|
US18
|
RFS-1-6J
|
|
Black
|
US19
|
RFS-1-5K
|
|
US19
|
RFS-1-6K
|
|
| |
To downstream 0-4
|
Red
|
DS0
|
RFS-2-5F
|
|
DS0
|
RFS-2-6F
|
|
White
|
DS1
|
RFS-2-5M
|
|
DS1
|
RFS-2-6M
|
|
Blue
|
DS2
|
RFS-1-5G
|
|
DS2
|
RFS-1-6G
|
|
Green
|
DS3
|
RFS-1-5F
|
|
DS3
|
RFS-1-6F
|
|
Yellow
|
DS4
|
RFS-1-5M
|
|
DS4
|
RFS-1-6M
|
|
Table 13 RF Switch Ports and Line Card Ports for Line Card Slots 5/0 and 5/1
Ports
|
Cable Color
|
Working Line Card Slot 5/0—Ports
|
RF Switch—Port
|
a
|
Protect Line Card Slot 5/1—Ports
|
RF Switch—Port
|
a
|
To upstream 0-9
|
Red
|
US0
|
RFS-2-7A
|
|
US0
|
RFS-2-P1A
|
|
White
|
US1
|
RFS-2-7B
|
|
US1
|
RFS-2-P1B
|
|
Blue
|
US2
|
RFS-2-7C
|
|
US2
|
RFS-2-P1C
|
|
Green
|
US3
|
RFS-2-7D
|
|
US3
|
RFS-2-P1D
|
|
Yellow
|
US4
|
RFS-2-7H
|
|
US4
|
RFS-2-P1H
|
|
Violet
|
US5
|
RFS-2-7I
|
|
US5
|
RFS-2-P1I
|
|
Orange
|
US6
|
RFS-2-7J
|
|
US6
|
RFS-2-P1J
|
|
Black
|
US7
|
RFS-2-7K
|
|
US7
|
RFS-2-P1K
|
|
Gray
|
US8
|
RFS-2-7E
|
|
US8
|
RFS-2-P1E
|
|
Brown
|
US9
|
RFS-2-7L
|
|
US9
|
RFS-2-P1L
|
|
| |
To upstream 10-19
|
Gray
|
US10
|
RFS-1-7E
|
|
US10
|
RFS-1-P1E
|
|
Brown
|
US11
|
RFS-1-7L
|
|
US11
|
RFS-1-P1L
|
|
Red
|
US12
|
RFS-1-7A
|
|
US12
|
RFS-1-P1A
|
|
White
|
US13
|
RFS-1-7B
|
|
US13
|
RFS-1-P1B
|
|
Blue
|
US14
|
RFS-1-7C
|
|
US14
|
RFS-1-P1C
|
|
Green
|
US15
|
RFS-1-7D
|
|
US15
|
RFS-1-P1D
|
|
Yellow
|
US16
|
RFS-1-7H
|
|
US16
|
RFS-1-P1H
|
|
Violet
|
US17
|
RFS-1-7I
|
|
US17
|
RFS-1-P1I
|
|
Orange
|
US18
|
RFS-1-7J
|
|
US18
|
RFS-1-P1J
|
|
Black
|
US19
|
RFS-1-7K
|
|
US19
|
RFS-1-P1K
|
|
| |
To downstream 0-4
|
Red
|
DS0
|
RFS-2-7F
|
|
DS0
|
RFS-2-P1F
|
|
White
|
DS1
|
RFS-2-7M
|
|
DS1
|
RFS-2-P1M
|
|
Blue
|
DS2
|
RFS-1-7G
|
|
DS2
|
RFS-1-P1G
|
|
Green
|
DS3
|
RFS-1-7F
|
|
DS3
|
RFS-1-P1F
|
|
Yellow
|
DS4
|
RFS-1-7M
|
|
DS4
|
RFS-1-P1M
|
|
Cabling the RF Switch Output (CABLE PLANT to HUB)
This section describes cabling the RF switch to the HUB or cable plant.
Note CABLE PLANT slots on the Cisco uBR 3x10 RF Switch are numbered in reverse sequence to the CMTS and PROTECT slots. Slot number one is on the far right. Refer to Figure 11 for header block and cable designations as viewed from the cable side of the header blocks.
Equipment
•7 RF cable bundle kits, CAB-RFSW520TPMF (3-m, RFS to cable plant, MCX to F, two 10-bundle, one 5-bundle)
•14 header blocks provided with input cable kits (installed)
To cable the output connections, complete the following steps. See Figure 11.
Step 1 Install the output cables in the header blocks. Refer to the "Equipment" section for MCX connector installation instructions.
Note The output cables (CABLE PLANT) on the Cisco uBR 3x10 RF Switches are cabled in the reverse order of the input cables (CMTS).
Step 2 Run the output cables (H-A) from header blocks to splitters, US laser receivers, or the low side of the diplex filters.
Step 3 Run the output cables (M, F, G) to the splitters and combiners, DS laser transmitters, or the high side of the diplex filters.
Note N is not used.
Figure 11 Cabling the Cable Plant Headers (CMTS/Protect Headers Shown for Comparison)
6 Cabling the Cisco uBR 3x10 RF Switch with Cisco uBR-MC16x Cable Interface Line Cards in the Cisco uBR7246VXR CMTS
The Cisco uBR7246VXR CMTS using five Cisco uBR7246VXR chassis, supports up to 20 Cisco uBR-MC16x (C, E, S, X or U) line cards. Each line card has one downstream and six upstream cable interfaces for a total of 20 downstream and 120 upstream interfaces for the CMTS. Two Cisco uBR 3x10 RF Switches are connected to the five Cisco uBR7246 routers, allowing you to employ a redundancy scheme in which one protect line card (in the protect router) supports from one to four working line cards in one of the four working chassis. Two upconverters are required for this configuration.
Note Cisco uBR-MC16U line cards have onboard upconverters and don't require the use of external upconverters. A Vecima upconverter is used in this sample configuration.
Figure 12 Cisco uBR7246VXR CMTS with Cisco uBR-MC16x Cable Interface Line Cards
Cabling the Working Line Card (VXR1-VXR4)
This section describes cabling two Cisco uBR 3x10 RF switches with five Cisco uBR7246VXR routers (with Cisco uBR-MC16x line cards installed) and two Vecima upconverters. See Figure 12.
Note Keep in mind that like cards back up like cards (for example, a Cisco uBR-MC16C line card is required to back up Cisco uBR-MC16C line cards).
Tip Cable the line card to the RF switch header block one card at a time.
Equipment
•16 cable bundle kits (4 per router), CAB-RFSW-3X10-T (1.2-m, F-connector to MCX connector)
•16 header blocks (installed)
To cable the working line cards, complete the following steps. Refer to Table 14, Table 15, Table 16, and Table 17.
Step 1 Connect the cables to the upstream connectors (US0-US5) on the line cards in VXR1.
Note We recommend that you tighten the F-connectors to a value between 10 (recommended) and 15 (maximum) inch-pounds (1.1298 Nm and 1.7339 Nm).
Step 2 Secure the cables with cable wrap, as necessary, and run the cable bundles up the left side of the equipment rack.
Step 3 Install the cables in the CMTS header block in the order that they were mapped.
a. Push the MCX connector into the hole in the header block until you can feel it snap into place.
b. Gently wiggle the connector to make sure that the connection is secure.
Step 4 Repeat Step 1 through Step 3 for each line card in each Cisco uBR7246VXR (VXR2 through VXR4).
Note One cable bundle is used for the US ports on each card. DS ports use a different cable bundle.
Figure 13 Cabling the Working Line Cards (VXR1)
Table 14 Cable Bundle Colors Used for US—MCX Connections VXR1 to RFS
Cable Color
|
LC US Ports
|
LC1 to RFS-2
|
a
|
LC2 to RFS-2
|
a
|
LC3 to RFS-1
|
a
|
LC4 to RFS-1
|
a
|
Red
|
US0
|
RFS-2—1A
|
|
RFS-2—5A
|
|
RFS-1—1A
|
|
RFS-1—5A
|
|
White
|
US1
|
RFS-2—1B
|
|
RFS-2—5B
|
|
RFS-1—1B
|
|
RFS-1—5B
|
|
Blue
|
US2
|
RFS-2—1C
|
|
RFS-2—5C
|
|
RFS-1—1C
|
|
RFS-1—5C
|
|
Green
|
US3
|
RFS-2—1D
|
|
RFS-2—5D
|
|
RFS-1—1D
|
|
RFS-1—5D
|
|
Yellow
|
US4
|
RFS-2—1H
|
|
RFS-2—5H
|
|
RFS-1—1H
|
|
RFS-1—5H
|
|
Violet
|
US5
|
RFS-2—1I
|
|
RFS-2—5I
|
|
RFS-1—1I
|
|
RFS-1—5I
|
|
Table 15 Cable Bundle Colors Used for US—MCX Connections VXR2 to RFS
Cable Color
|
LC US Ports
|
LC1 to RFS-2
|
a
|
LC2 to RFS-2
|
a
|
LC3 to RFS-1
|
a
|
LC4 to RFS-1
|
a
|
Red
|
US0
|
RFS-2—2A
|
|
RFS-2—6A
|
|
RFS-1—2A
|
|
RFS-1—6A
|
|
White
|
US1
|
RFS-2—2B
|
|
RFS-2—6B
|
|
RFS-1—2B
|
|
RFS-1—6B
|
|
Blue
|
US2
|
RFS-2—2C
|
|
RFS-2—6C
|
|
RFS-1—2C
|
|
RFS-1—6C
|
|
Green
|
US3
|
RFS-2—2D
|
|
RFS-2—6D
|
|
RFS-1—2D
|
|
RFS-1—6D
|
|
Yellow
|
US4
|
RFS-2—2H
|
|
RFS-2—6H
|
|
RFS-1—2H
|
|
RFS-1—6H
|
|
Violet
|
US5
|
RFS-2—2I
|
|
RFS-2—6I
|
|
RFS-1—2I
|
|
RFS-1—6I
|
|
Table 16 Cable Bundle Colors Used for US—MCX Connections VXR3 to RFS
Cable Color
|
LC US Ports
|
LC1 to RFS-2
|
a
|
LC2 to RFS-2
|
a
|
LC3 to RFS-1
|
a
|
LC4 to RFS-1
|
a
|
Red
|
US0
|
RFS-2—3A
|
|
RFS-2—7A
|
|
RFS-1—3A
|
|
RFS-1—7A
|
|
White
|
US1
|
RFS-2—3B
|
|
RFS-2—7B
|
|
RFS-1—3B
|
|
RFS-1—7B
|
|
Blue
|
US2
|
RFS-2—3C
|
|
RFS-2—7C
|
|
RFS-1—3C
|
|
RFS-1—7C
|
|
Green
|
US3
|
RFS-2—3D
|
|
RFS-2—7D
|
|
RFS-1—3D
|
|
RFS-1—7D
|
|
Yellow
|
US4
|
RFS-2—3H
|
|
RFS-2—7H
|
|
RFS-1—3H
|
|
RFS-1—7H
|
|
Violet
|
US5
|
RFS-2—3I
|
|
RFS-2—7I
|
|
RFS-1—3I
|
|
RFS-1—7I
|
|
Table 17 Cable Bundle Colors Used for US—MCX Connections VXR4 to RFS
Cable Color
|
LC US Ports
|
LC1 to RFS-2
|
a
|
LC2 to RFS-2
|
a
|
LC3 to RFS-1
|
a
|
LC4 to RFS-1
|
a
|
Red
|
US0
|
RFS-2—4A
|
|
RFS-2—8A
|
|
RFS-1—4A
|
|
RFS-1—8A
|
|
White
|
US1
|
RFS-2—4B
|
|
RFS-2—8B
|
|
RFS-1—4B
|
|
RFS-1—8B
|
|
Blue
|
US2
|
RFS-2—4C
|
|
RFS-2—8C
|
|
RFS-1—4C
|
|
RFS-1—8C
|
|
Green
|
US3
|
RFS-2—4D
|
|
RFS-2—8D
|
|
RFS-1—4D
|
|
RFS-1—8D
|
|
Yellow
|
US4
|
RFS-2—4H
|
|
RFS-2—8H
|
|
RFS-1—4H
|
|
RFS-1—8H
|
|
Violet
|
US5
|
RFS-2—4I
|
|
RFS-2—8I
|
|
RFS-1—4I
|
|
RFS-1—8I
|
|
Cabling the Protect Line Cards (VXR 5)
This section describes cabling the protect cards to the RF switch.
Equipment
•4 cable bundle kits (4 per router), CAB-RFSW-3X10-T (1.2-m, F-connector to MCX connector)
•4 header blocks (installed)
To cable the protect line cards, complete the following steps. Refer to Table 18 and to Figure 14.
Step 1 Connect the cables to the upstream connectors (US0-US5) on line card-LC1) on router 5.
Step 2 Secure the cables with cable wrap, as necessary, and run the cable bundles up the right side of the equipment rack.
Step 3 Install the cables in the PROTECT header block in the order that they were mapped. See Figure 14.
Step 4 Repeat Step 1 through Step 3 for all the line cards in VXR5 (PROTECT).
Figure 14 Cabling the Protect Line Cards (MC16x)
Table 18 RF Switch Slots for the PROTECT Cards
VXR5-LC
|
US Ports
|
RFS-1—PROTECT Slot
|
a
|
VXR5-LC
|
US Ports
|
RFS-2—PROTECT Slot
|
a
|
LC1
|
US0-US3 US4-US5
|
RFS-2—P2 (A-D)
RFS-2—P2 (H1-I)
|
|
LC3
|
US0-US3 US4-US5
|
RFS-1—P2 (A-D)
RFS-1—P2 (H-I)
|
|
LC2
|
US0-US3 US4-US5
|
RFS-2—P1 (A-D)
RFS-2—P1 (H-I)
|
|
LC4
|
US0-US3 US4-US5
|
RFS-1—P1 (A-D)
RFS-1—P1 (H-I)
|
|
Cabling DS Ports to the Input Ports on the Upconverter
This section describes cabling the DS ports to the input ports on the upconverter.
Note Cisco uBR-MC16U line cards have onboard upconverters. Cable the DS ports directly to the F ports on the RF switch.
Equipment
•3 cable bundle kits (4 per router), F-connector to F-connector
To cable the DS ports, complete the following steps. Refer to Table 19 and Figure 15.
Step 1 Connect the cables to the downstream (DS) connectors on the line cards (LC1—LC4).
Step 2 Secure the cables with cable wrap, and run the cable bundles up the right side of the equipment rack.
Step 3 Pull the cable bundle through the space between the VXR1 router and the RF switch.
Step 4 Connect the cables to the input ports (top) on the upconverter. Add attenuators, if required.
Step 5 Repeat Step 1 through Step 4 for each DS port (VXR2 through VXR5).
Figure 15 Cabling the Upconverter (MC16x Downstream Ports to UPx1)
Table 19 DS Cables from VXRs to Upconverter Ports (by router)
Color
|
VXR1/VXR2
|
UPx1 Input
|
a
|
VXR3/VXR4
|
UPx1 Input
|
a
|
VXR5
|
UPx2 Input
|
a
|
Red
|
LC1-DS
|
1
|
|
LC1-DS
|
9
|
|
LC1-DS
|
1
|
|
White
|
LC2-DS
|
2
|
|
LC2-DS
|
10
|
|
LC2-DS
|
2
|
|
Blue
|
LC3-DS
|
3
|
|
LC3-DS
|
11
|
|
LC3-DS
|
3
|
|
Green
|
LC4-DS
|
4
|
|
LC4-DS
|
12
|
|
LC4-DS
|
4
|
|
Yellow
|
LC1-DS
|
5
|
|
LC1-DS
|
13
|
|
—
|
—
|
|
Purple
|
LC2-DS
|
6
|
|
LC2-DS
|
14
|
|
—
|
—
|
|
Orange
|
LC3-DS
|
7
|
|
LC3-DS
|
15
|
|
—
|
—
|
|
Black
|
LC4-DS
|
8
|
|
LC4-DS
|
16
|
|
—
|
—
|
|
Cabling the Output Ports (Upconverter to RF Switch)
This section describes cabling the output cables on the upconverter to the RF switch.
Equipment
•20 RF cables (F-connector to MCX connector—gray and brown)
To cable the output ports on the upconverter, complete the following steps. Refer to Table 20 and Figure 16.
Step 1 Connect the cable to the output connector (1-lower) on the upconverter.
Step 2 Run the cable under the RF switch to the rear of the chassis.
Step 3 Connect the cable to the 1F port on RFS-2.
Step 4 Repeat Step 1 through Step 3 for the remaining cables.
Figure 16 Output Cables (Gray and Brown)
Table 20 Upconverter Output Cables (UPx1 and UPx2) to RF Switches (RFS-1 and RFS-2)
Color
|
UPx
|
RFS Ports
|
Supports
|
a
|
UPx
|
RFS Ports
|
Supports
|
a
|
UPx
|
RFS Ports
|
Supports
|
a
|
Gray
|
11
|
RFS-2-1F
|
VXR1-LC1
|
|
9
|
RFS-2-3F
|
VXR3-LC1
|
|
12
|
RFS-2-P2F
|
VXR5-LC1
|
|
Brown
|
2
|
RFS-2-5F
|
VXR1-LC2
|
|
10
|
RFS-2-7F
|
VXR3-LC2
|
|
2
|
RFS-2-P1F
|
VXR5-LC2
|
|
Gray
|
3
|
RFS-1-1F
|
VXR1-LC3
|
|
11
|
RFS-1-3F
|
VXR3-LC3
|
|
3
|
RFS-1-P2F
|
VXR5-LC3
|
|
Brown
|
4
|
RFS-1-5F
|
VXR1-LC4
|
|
12
|
RFS-1-7F
|
VXR3-LC4
|
|
4
|
RFS-1-P1F
|
VXR5-LC4
|
|
Gray
|
5
|
RFS-2-2F
|
VXR2-LC1
|
|
13
|
RFS-2-4F
|
VXR4-LC1
|
|
—
|
—
|
—
|
|
Brown
|
6
|
RFS-2-6F
|
VXR2-LC2
|
|
14
|
RFS-2-8F
|
VXR4-LC2
|
|
—
|
—
|
—
|
|
Gray
|
7
|
RFS-1-2F
|
VXR2-LC3
|
|
15
|
RFS-1-4F
|
VXR4-LC3
|
|
—
|
—
|
—
|
|
Brown
|
8
|
RFS-1-6F
|
VXR2-LC4
|
|
16
|
RFS-1-8F
|
VXR4-LC4
|
|
—
|
—
|
—
|
|
Cabling the RF Switch Output (CABLE PLANT to HUB)
This section describes cabling the output cables on the RF switch to the cable plant.
Equipment
•16 cable bundles (MCX connector to F-connector—multicolor)
•16 header blocks (installed)
To cable the RF switch output cables, complete the following steps. Refer to Figure 17.
Step 1 Install the output cables in the header blocks.
Note The output cables (CABLE PLANT) on the Cisco uBR 3x10 RF Switch are cabled in the reverse order of the input cables (CMTS).
Step 2 Run the output cables (H-A) from header blocks to splitters, US laser receivers, or the low side of the diplex filters
Step 3 Run the output cables (F) to the splitters and combiners, DS laser transmitters, or the high side of the diplex filters.
Figure 17 RF Switch Cable Plant Outputs (Turquoise)
7 Cabling the Cisco uBR 3x10 RF Switch with Cisco uBR-MC28x Cable Interface Line Cards in the Cisco uBR7246VXR CMTS
The Cisco uBR7246VXR CMTS using five Cisco uBR7246VXR chassis, supports up to 20 Cisco uBR-MC28x (C, X, and U) line cards. Each line card has two downstream and eight upstream cable interfaces for a total of 40 downstream and 160 upstream interfaces for the CMTS. Two Cisco uBR 3x10 RF Switch are connected to the five Cisco uBR7246 routers, allowing you to employ a redundancy scheme in which one protect line card (in the protect router) supports from one to four working line cards in one of the four working chassis. Three upconverters are required for this configuration.
Note Cisco uBR-MC28U line cards have onboard upconverters and don't require the use of external upconverters. A Vecima upconverter is used in this sample configuration.
Figure 18 Cisco uBR7246VXR CMTS with Cisco uBR-MC28x Cable Interface Line Cards
Cabling the Working Line Card (VXR1-VXR4) to the RF Switch
This section describes cabling the working line cards to the RF switch.
Note Keep in mind that like cards back up like cards. For example, Cisco uBR-MC28C line cards require a Cisco uBR-MC28C line card for backup.
Equipment
•16 RF cable bundle kits (4 per router), one per card (F-connector to MCX connector—multicolor)
•16 header blocks (installed)
To cable the working line cards, complete the following steps. Refer to Table 21 for the color scheme.
Step 1 Connect the cables to the upstream ports (US0-US3, US0-US3) on the line cards in VXR1.
Note We recommend that you tighten the F-connectors to a value between 10 (recommended) and 15 (maximum) inch-pounds (1.1298 Nm and 1.7339 Nm).
Step 2 Secure the cables with cable wrap, and run the cable bundles up the left side of the equipment rack.
The line cards alternate between RF switch 1 and RF switch 2. Refer to the tables to see where each card is cabled. Table 21 shows the color of cable used for each connection.
Step 3 Install the cables in the CMTS header blocks, one card at a time. LC1 cables and LC2 cables go to RF switch 2,and LC3 cables and LC4 cables go to RF switch 1. See and Table 22 and Table 23.
a. Push the MCX connector into the hole in the header block until you can feel it snap into place.
b. Gently wiggle the connector to make sure that the connection is secure.
Step 4 Repeat Step 1 through Step 3 for each line card in each Cisco uBR7246VXR (VXR2 through VXR4).
Figure 19 Cabling the Cisco uBR-MC28x Line Card in VXR1 to the RF Switches
Table 21 Cable Colors Used for Upstream Connections, Cisco uBR-MC28Cx US Ports (VXR) to RFS-1 and RFS-2
Cable Color
|
US Ports
|
a
|
Cable Color
|
US Ports
|
a
|
Red
|
US0
|
|
Yellow
|
US0
|
|
White
|
US1
|
|
Purple
|
US1
|
|
Blue
|
US2
|
|
Orange
|
US2
|
|
Green
|
US3
|
|
Black
|
US3
|
|
Figure 20 Cabling the Cisco uBR 3x10 RF Switch
RF Switch 1
Table 22 Cable Bundle Sequence for the Cisco uBR 3x10 RF Switch 1
VXR1-LC
|
US Ports
|
RFS-1 Slot (Header Block)
|
a
|
VXR3
|
US Ports
|
RFS-1 Slot (Header Block)
|
a
|
LC3
|
US0-US3
US0-US3
|
RFS-1 Slot 1 (1A-1D)
RFS-1 Slot 1 (1H-1K)
|
|
LC3
|
US0-US3
US0-US3
|
RFS-1 Slot 3 (3A-3D)
RFS-1 Slot 3 (3H-3K)
|
|
LC4
|
US0-US3
US0-US3
|
RFS-1 Slot 5 (5A-5D)
RFS-1 Slot 5 (5H-5K)
|
|
LC4
|
US0-US3
US0-US3
|
RFS-1 Slot 7 (7A-7D)
RFS-1 Slot 7 (7H-7K)
|
|
VXR2-LC
|
US Ports
|
RFS-1 Slot (Header Block)
|
|
VXR4-LC
|
US Ports
|
RFS-1 Slot (Header Block)
|
|
LC3
|
US0-US3
US0-US3
|
RFS-1 Slot 2 (2A-2D)
RFS-1 Slot 2 (2H-2K)
|
|
LC3
|
US0-US3
US0-US3
|
RFS-1 Slot 4 (4A-4D)
RFS-1 Slot 4 (4H-4K)
|
|
LC4
|
US0-US3
US0-US3
|
RFS-1 Slot 6 (6A-6D)
RFS-1 Slot 6 (6H-6K)
|
|
LC4
|
US0-US3
US0-US3
|
RFS-1 Slot 8 (8A-8D)
RFS-1 Slot 8 (8H-8K)
|
|
RF Switch 2
Table 23 Cable Bundle Sequence for the Cisco uBR 3x10 RF Switch 2
VXR1-LC
|
US Ports
|
RFS-2 Slot (Header Block)
|
a
|
VXR3-LC
|
US Ports
|
RFS-2 Slot (Header Block)
|
a
|
LC1
|
US0-US3
US0-US3
|
RFS-2 Slot 1 (1A-1D)
RFS-2 Slot 1 (1H-1K)
|
|
LC1
|
US0-US3
US0-US3
|
RFS-2 Slot 3 (3A-3D)
RFS-2 Slot 3 (3H-3K)
|
|
LC2
|
US0-US3
US0-US3
|
RFS-2 Slot 5 (5A-5D)
RFS-2 Slot 5 (5H-5K)
|
|
LC2
|
US0-US3
US0-US3
|
RFS-2 Slot 7 (7A-7D)
RFS-2 Slot 7 (7H-7K)
|
|
VXR2-LC
|
US Ports
|
RFS-2 Slot (Header Block)
|
|
VXR4-LC
|
US Ports
|
RFS-2 Slot (Header Block)
|
|
LC1
|
US0-US3
US0-US3
|
RFS-2 Slot 2 (2A-2D)
RFS-2 Slot 2 (2H-2K)
|
|
LC1
|
US0-US3
US0-US3
|
RFS-2 Slot 4 (4A-4D)
RFS-2 Slot 4 (4H-4K)
|
|
LC2
|
US0-US3
US0-US3
|
RFS-2 Slot 6 (6A-6D)
RFS-2 Slot 6 (6H-6K)
|
|
LC2
|
US0-US3
US0-US3
|
RFS-2 Slot 8 (8A-8D)
RFS-2 Slot 8 (8H-8K)
|
|
Cabling the Protect Line Cards (VXR 5)
This section describes cabling the protect line cards to the RF switch.
Equipment
•4 cable bundles—one per router (F-connector to MCX connector—multicolor)
•4 header blocks (installed)
To cable the protect line cards, complete the following steps. Refer to Table 24 and Figure 21.
Step 1 Connect the cables to the upstream connectors (US0-US5) on line card-LC1 on router 5.
Step 2 Secure the cables with cable wrap, as necessary, and run the cable bundles up the right side of the equipment rack.
Step 3 Install the cables in the PROTECT header block in the order that they were mapped.
Step 4 Repeat Step 1 through Step 3 for all the line cards in VXR5 (PROTECT).
Figure 21 Cabling the Protect Line Cards (Cisco MC28x to RFS-1 and RFS-2)
Table 24 RF Switch Slots for the PROTECT Cards
VXR5-LC
|
US Ports
|
RFS-2—PROTECT Slot
|
a
|
VXR5-LC
|
US Ports
|
RFS-1—PROTECT Slot
|
a
|
LC1
|
US0-US3 US0-US3
|
RFS-2—P2 (A-D)
RFS-2—P2 (H-K)
|
|
LC3
|
US0-US3 US0-US3
|
RFS-1—P2 (A-D)
RFS-1—P2 (H-K)
|
|
LC2
|
US0-US3
US0-US3
|
RFS-2—P1 (A-D)
RFS-2—P1 (H-K)
|
|
LC4
|
US0-US3 US0-US3
|
RFS-1—P1 (A-D)
RFS-1—P1 (H-K)
|
|
Cabling DS Ports to the Input Ports on the Upconverter
This section describes cabling the DS ports to the input ports on the upconverter.
Note The Cisco uBR-MC28U line cards have onboard upconverters. Cable the DS ports directly to F and M ports on the RF switch.
Equipment
•5 cable bundle kits, CAB-RFSW-3X10-T, (F-connector to F-connector, MCX connector replaced with F-connector)
To cable the DS ports to the upconverter, complete the following steps. Refer to Figure 22 , and Table 25, Table 26 , and Table 27.
Step 1 Connect the cables to the downstream connectors (DS0, DS1) on the line cards (LC1—LC4).
Step 2 Secure the cables with cable wrap, and run the cable bundles up the right side of the equipment rack.
Step 3 Pull the cable bundle through the space between the VXR1 router and the RF switch.
Step 4 Connect the cables to the input ports (top) on the upconverter. Add attenuators, if required.
Step 5 Repeat Step 1 through Step 4 for each DS0 and DS1 port on the Cisco uBR7246VXR routers (VXR2 through VXR5).
Figure 22 Cabling the Upconverter (MC28x Downstream Ports to the Upconverter)
UPx1
Table 25 DS Cables from VXRs to UPx1 Ports (by Router)
Color
|
VXR1
|
UPx1 Input
|
a
|
VXR2
|
UPx1 Input
|
a
|
Red
|
LC1—DS0
|
1
|
|
LC1—DS0
|
9
|
|
White
|
LC1—DS1
|
2
|
|
LC1—DS1
|
10
|
|
Blue
|
LC2—DS0
|
3
|
|
LC2—DS0
|
11
|
|
Green
|
LC2—DS1
|
4
|
|
LC2—DS1
|
12
|
|
Yellow
|
LC3—DS0
|
5
|
|
LC3—DS0
|
13
|
|
Purple
|
LC3—DS1
|
6
|
|
LC3—DS1
|
14
|
|
Orange
|
LC4—DS0
|
7
|
|
LC4—DS0
|
15
|
|
Black
|
LC4—DS1
|
8
|
|
LC4—DS1
|
16
|
|
UPx2
Table 26 DS Cables from VXRs to UPx2 Ports (by Router)
Color
|
VXR3
|
UPx2 Input
|
a
|
VXR4
|
UPx2 Input
|
a
|
Red
|
LC1—DS0
|
1
|
|
LC1—DS0
|
9
|
|
White
|
LC1—DS1
|
2
|
|
LC1—DS1
|
10
|
|
Blue
|
LC2—DS0
|
3
|
|
LC2—DS0
|
11
|
|
Green
|
LC2—DS1
|
4
|
|
LC2—DS1
|
12
|
|
Yellow
|
LC3—DS0
|
5
|
|
LC3—DS0
|
13
|
|
Purple
|
LC3—DS1
|
6
|
|
LC3—DS1
|
14
|
|
Orange
|
LC4—DS0
|
7
|
|
LC4—DS0
|
15
|
|
Black
|
LC4—DS1
|
8
|
|
LC4—DS1
|
16
|
|
UPx3
Table 27 DS Cables from VXR5 (Protect Cards) to UPx3
Color
|
VXR5
|
UPx3 Input
|
a
|
Red
|
LC1—DS0
|
1
|
|
White
|
LC1—DS1
|
2
|
|
Blue
|
LC2—DS0
|
3
|
|
Green
|
LC2—DS1
|
4
|
|
Yellow
|
LC3—DS0
|
5
|
|
Purple
|
LC3—DS1
|
6
|
|
Orange
|
LC4—DS0
|
7
|
|
Black
|
LC4—DS1
|
8
|
|
Cabling the Output Ports (Upconverter to RF Switch)
This section describes cabling the output ports on the upconverter to the RF switch.
Equipment
•40 RF cables (F-connector to MCX connector—gray and brown)
To cable the upconverter to the RF switch, complete the following steps. Refer to Table 28 and Figure 23.
Step 1 Connect the cable to the output connector (1-lower) on the upconverter.
Step 2 Run the cable under the RF switch to the rear of the chassis.
Step 3 Connect the cable to the F1 port on the header block.
Step 4 Repeat Step 1 through Step 3 for the remaining cables, alternating between the F and M ports on the header blocks.
Table 28 UPx Cables Back to the RF Switch
Color
|
UPx1
Output
|
RFS Ports
|
a
|
UPx2
Output
|
RFS Ports
|
a
|
UPx3
Output
|
RFS Ports
|
a
|
Gray
|
1
|
RFS-2, 1F
|
|
1
|
RFS-2, 3F
|
|
1
|
RFS-2, P2F
|
|
Brown
|
2
|
RFS-2, 1M
|
|
2
|
RFS-2, 3M
|
|
2
|
RFS-2, P2M
|
|
Gray
|
3
|
RFS-2, 5F
|
|
3
|
RFS-2, 7F
|
|
3
|
RFS-2, P1F
|
|
Brown
|
4
|
RFS-2, 5M
|
|
4
|
RFS-2, 7M
|
|
4
|
RFS-2, P1M
|
|
Gray
|
5
|
RFS-1, 1F
|
|
5
|
RFS-1, 3F
|
|
5
|
RFS-1, P2F
|
|
Brown
|
6
|
RFS-1, 1M
|
|
6
|
RFS-1, 3M
|
|
6
|
RFS-1, P2M
|
|
Gray
|
7
|
RFS-1, 5F
|
|
7
|
RFS-1, 7F
|
|
7
|
RFS-1, P1F
|
|
Brown
|
8
|
RFS-1, 5M
|
|
8
|
RFS-1, 7M
|
|
8
|
RFS-1, P1M
|
|
Gray
|
9
|
RFS-2, 2F
|
|
9
|
RFS-2, 4F
|
|
—
|
—
|
|
Brown
|
10
|
RFS-2, 2M
|
|
10
|
RFS-2, 4M
|
|
—
|
—
|
|
Gray
|
11
|
RFS-2, 6F
|
|
11
|
RFS-2, 8F
|
|
—
|
—
|
|
Brown
|
12
|
RFS-2, 6M
|
|
12
|
RFS-2, 8M
|
|
—
|
—
|
|
Gray
|
13
|
RFS-1, 2F
|
|
13
|
RFS-1, 4F
|
|
—
|
—
|
|
Brown
|
14
|
RFS-1, 2M
|
|
14
|
RFS-1, 4M
|
|
—
|
—
|
|
Gray
|
15
|
RFS-1, 6F
|
|
15
|
RFS-1, 8F
|
|
—
|
—
|
|
Brown
|
16
|
RFS-1, 6M
|
|
16
|
RFS-1, 8M
|
|
—
|
—
|
|
Tip Use different colored cables for each connection. The example shows alternating gray and brown.
Figure 23 Cabling the Output Ports, (Gray and Brown Cables)
Cabling the RF Switch Output (CABLE PLANT to HUB)
The following section describes cabling the RF switch for output.
Note The output cables (CABLE PLANT) on the RF switch are cabled in the reverse order of the input cables (CMTS).
Equipment
•16 RF cable bundle kits, CAB-RFSW-3X10-10T, (10-m, MCX connector to F-connector—multicolor)
•16 header blocks (installed)
To cable the output to the cable plant, complete the following steps:
Step 1 Install the output cables in the header blocks. Start with the header block on the far right (1H—1A). See Figure 24. Refer to the "Cabling the Working Line Card (VXR1-VXR4) to the RF Switch" section for installation instructions.
Tip For easier troubleshooting, use the same color sequence that was used for CMTS cabling.
A-red, B-white, C-blue, D-green. H-yellow, I-violet, J-orange, K-black.
Step 2 Run the output cables (H-A) from header blocks to splitters, US laser receivers, or the low side of the diplex filters
Step 3 Run the output cables (M-F) to the splitters and combiners, DS laser transmitters, or the high side of the diplex filters.
Figure 24 RF Switch Cable Plant Outputs (Turquoise)
8 Powering On the RF Switch
Perform this procedure only after installing and cabling the RF switch.
To power on the RF switch, complete the following steps:
Perform this procedure only after installing and cabling the RF switch.
To power on the RF switch, complete the following steps:
Step 1 Check that the cables connecting the cable interface line cards in the Cisco uBR7246VXR to the Cisco uBR 3x10 RF Switch are in place.
Step 2 Verify that the power cables are properly connected and secured.
a. The AC-input power cable is connected and secured with the cable-retention clip.
b. The AC power cord is connected to the AC power source.
or
a. The DC-input leads (+48 and -48 DC) are connected and secured in the strain-relief on the power supply faceplate.
b. The DC ground wire is securely connected to the ground location (rack).
c. The DC leads are connected to the DC power source.
Step 3 Place the power switch on the power supply in either the AC or DC position, depending on which type of power source is connected to your Cisco RF Switch. The green LED on the power supply goes on.
Step 4 During the boot process, monitor the Cisco uBR 3x10 RF Switch system initialization and LED behavior for any errors or failures.
9 Troubleshooting
This section covers troubleshooting the cable installation. For information about troubleshooting the Cisco uBR 3x10 RF Switch, refer to the Cisco uBR 3x10 RF Switch Installation and Cabling Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/rfswitch/icg/index.htm
1. Verify that the cards are securely installed in both CMTS and RF switch chassis. We recommend that you tighten the captive screws on the cards to 5 to 7 inch-pounds (0.5647 to 0.7909 Nm).
2. Verify that the MCX connectors are securely installed in the header blocks and that the header blocks are securely installed on the RF switch. We recommend that you tighten the captive screws on the header blocks to 5 to 7 inch-pounds
(0.5647 to 0.7909 Nm).
3. If you are using Cisco uBR-MC16x or Cisco uBR-MC28C line cards, verify that the F-connectors on the cables are securely attached to the line card. We recommend that you tighten the F-connectors to a value between 10 (recommended) and 15 (maximum) inch-pounds (1.1298 Nm and 1.7339 Nm).
4. If you are using Cisco uBR5x20S/U/H line cards, verify that the cables are secure in the UCH and that the UCH is securely installed on the line card. Tighten the captive screws to 5 to 7 inch-pounds (0.5647 to 0.7909 Nm).
5. Make sure that the cables are not bent or positioned at too acute an angle.
6. Make sure that none of the connections between the cables and the connectors are broken or damaged. Replace the connector if necessary.
7. Check the STATUS LEDs on the RF switch modules. See Table 29.
Table 29 Switch Board LED Descriptions
LED Name
|
Color
|
Description
|
Protect 1
|
Green/Yellow
|
Idle/protect
|
Protect 2
|
Green/ Yellow
|
Idle/protect
|
Error 1
|
Off/Continuous Yellow
|
No problem/communications failure or switch position failure
|
Error 2
|
Off/Continuous Yellow
|
No problem/communications failure or switch position failure
|
