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Hardware Installation Guide - Page 4
Contents
4 C H A P T E R A A P P E N D I X
Configuring the Clock Card 4-1 Minimum Software Requirements 4-1 Configuration and Diagnostic Cisco IOS Commands for the Clock Card 4-2
Clock Source Paths A-1
Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246 VXR Universal Broadband Router
iv
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Hardware Installation Guide - Page 5
... A Clock Source Paths
Description
Describes the clock card and its supported features, LED displays and behavior, and interfaces.
Provides schematic representations of this document and explains how to install and configure the Cisco Cable Clock Card field-replaceable unit used in a Cisco uBR7246 VXR, depending on related products and services. This preface contains the following chapters...
Hardware Installation Guide - Page 6
...: • Cisco IOS software:
For configuration information and support, refer to the modular configuration and modular command reference publications in Cisco Product Documentation as an RSS feed and set that corresponds to the Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide. - For software configuration information, including detailed configuration information for...
Hardware Installation Guide - Page 8
... signal External clock sources must conform to the following minimum specifications: • Traceable to other routers. Cisco Cable Clock Card Hardware Installation Guide for the clock card. The clock card also operates with a Cisco uBR-MC28C cable modem card using Cisco IOS Release 12.1(1a)T1 or later, as well as the Cisco uBR-MC16C, with
the primary and/or secondary external...
Hardware Installation Guide - Page 11
... source for the Cisco uBR7246VXR Universal Broadband Router
1-5 FAULT
Amber Indicates a hardware failure with the clock card installed. OL-26705-01
Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246 VXR.
Clock Card Location in the Cisco uBR7246 VXR Chassis
The chassis slot of the Cisco uBR7246 VXR chassis into which the clock card can be installed is currently locked...
Hardware Installation Guide - Page 12
...)
PCMCIA slots
Auxiliary port Console port
Internal fans
Clock card
Fan tray handle
Captive installation
screws
LOS ACTIVE
ER
FREERUN
SEC
uBR - MCI6 DS
US1
US 2
uBR - MCI6 DS
US 1
US 2
US 5
uBR - MCI6
US 5
DS
Cable F connectors
31496
I/O controller
Port adapters
Cable interface line cards
Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR Universal...
Hardware Installation Guide - Page 13
...requirements for the Cisco uBR7246VXR Universal Broadband Router
2-1 You can use the clock card with the external clock source. This chapter contains the following tools and parts to pigtail cable, 24.6 feet (7.5 m), CAB-SDS6 cable, COM-T1Product Number.
OL-26705-01
Cisco Cable Clock Card Hardware Installation Guide for installing the Cisco Cable Clock Card. For pinouts, refer...
Hardware Installation Guide - Page 17
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Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR Universal Broadband Router
3-1 3 C H A P T E R
Removing and Installing the Clock Card
This chapter describes how to remove the Cisco Cable Clock Card from a Cisco uBR7246 VXR and also how to electrostatic discharge (ESD) damage.
Note When the clock card slot is not in use , you plan to allow proper ...
Hardware Installation Guide - Page 19
... the rear of the clock card slot, make certain that follow give step-by-step instruction on how to remove and install the clock card. This section contains the following illustrations: • Cisco uBR7246 VXR-Removing a Clock Card, page 3-4 • Cisco uBR7246 VXR-Installing a Clock Card, page 3-5
OL-26705-01
Cisco Cable Clock Card Hardware Installation Guide for attaching the wrist strap...
Hardware Installation Guide - Page 20
Clock Card Removal and Installation
Cisco uBR7246 VXR-Removing a Clock Card
Step 1 Power off the Cisco uBR7246 VXR.
MCI6 DS
US ENABLED
0
US1
US... installation screws on an antistatic surface with its chassis slot.
Step 5 Place the clock card on the front of the clock card. CLK-T1
FAULT
31511
Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR ...
Hardware Installation Guide - Page 23
... downstream SYNC messages with a Cisco uBR-MC16S or Cisco uBR-MC16E cable interface line card. 4 C H A P T E R
Configuring the Clock Card
To continue the Cisco Cable Clock Card installation, you must use Cisco IOS Release 12.2(15)CX or later. If you are configuring the clock card with the external clock source. OL-26705-01
Cisco Cable Clock Card Hardware Installation Guide for the Clock...
Hardware Installation Guide - Page 24
... clock card mode of a clock card, if one is installed.
Cisco Cable Clock Card Hardware Installation Guide for the Clock Card
Table 4-1 presents a list of command-line functions, refer to initially configure and troubleshoot clock card installation. For complete command-line syntax examples and more definitive explanations of basic configuration and diagnostic Cisco IOS commands that...
Hardware Installation Guide - Page 25
...
SEC clk SEC LOS
Clock recovery and filter chips
20.48 MHz To line cards
No cable clock source-midplane
Cable clock force primary
(default)
Clock card primary source to midplane 8 kHz
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Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR Universal Broadband Router
A-1
Clock Source Paths
A A P P E N D I X
The schematics in this appendix display...
Hardware Installation Guide - Page 26
... SRCs PRI SEC
Clock card clk mux
PRI clk PRI LOS
PA SEC SRC
SEC clk SEC LOS
Clock recovery and filter chips
20.48 MHz To line cards
No cable clock source-midplane
Cable clock force secondary
Clock card primary source to midplane 8 kHz
31499
Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR Universal Broadband Router...
Hardware Installation Guide - Page 27
... PRI SEC
Clock card clk mux
PRI clk PRI LOS
PA SEC SRC
SEC clk SEC LOS
Clock recovery and filter chips
20.48 MHz To line cards
Cable clock source-midplane
Cable clock force secondary
Clock card primary source to midplane 8kHz
31500
OL-26705-01
Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR Universal Broadband...
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