Hardware Installation Guide
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... of operation for the Cisco uBR7246VXR Universal Broadband Router 1-2 OL-26705-01 Modes of Operation The clock card can use a national clock source, the cable interface line card must be one of these other routers. To use other cable interface cards, such as Cisco IOS Release 12.1(2)EC1 or later. Cisco Cable Clock Card Hardware Installation Guide for the...
... of operation for the Cisco uBR7246VXR Universal Broadband Router 1-2 OL-26705-01 Modes of Operation The clock card can use a national clock source, the cable interface line card must be one of these other routers. To use other cable interface cards, such as Cisco IOS Release 12.1(2)EC1 or later. Cisco Cable Clock Card Hardware Installation Guide for the...
Hardware Installation Guide
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...clock source experiences a loss of fire, use only No. 26 AWG or larger telecommunication line cord. Note Holdover mode features 1 ppm maximum drift per day accuracy. Note The clock card features a minimum freerun frequency accuracy of 4.6 ppm. • Locked to midplane TDM ...After you have successfully connected to a primary and or secondary external clock source, you to connect your Cisco uBR7246 VXR to the Cisco uBR7246 VXR for the Cisco uBR7246VXR Universal Broadband Router 1-3 Holdover mode provides a reliable Stratum 3 clock to external T1 national clock sources originating...
...clock source experiences a loss of fire, use only No. 26 AWG or larger telecommunication line cord. Note Holdover mode features 1 ppm maximum drift per day accuracy. Note The clock card features a minimum freerun frequency accuracy of 4.6 ppm. • Locked to midplane TDM ...After you have successfully connected to a primary and or secondary external clock source, you to connect your Cisco uBR7246 VXR to the Cisco uBR7246 VXR for the Cisco uBR7246VXR Universal Broadband Router 1-3 Holdover mode provides a reliable Stratum 3 clock to external T1 national clock sources originating...
Hardware Installation Guide
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...VXR Chassis Chapter 1 Overview Figure 1-4 Clock Card Location in the Cisco uBR7246 VXR Optional Fast Ethernet port (MII receptacle and RJ-45 receptacle) PCMCIA slots Auxiliary port Console port Internal fans Clock card Fan tray handle Captive installation screws LOS ...- MCI6 DS US1 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 Broadband Router 1-6 OL-26705-01 MCI6 DS US 1 US 2 US 5 uBR - MCI6 DS US1 US 2 uBR -
...VXR Chassis Chapter 1 Overview Figure 1-4 Clock Card Location in the Cisco uBR7246 VXR Optional Fast Ethernet port (MII receptacle and RJ-45 receptacle) PCMCIA slots Auxiliary port Console port Internal fans Clock card Fan tray handle Captive installation screws LOS ...- MCI6 DS US1 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 Broadband Router 1-6 OL-26705-01 MCI6 DS US 1 US 2 US 5 uBR - MCI6 DS US1 US 2 uBR -
Hardware Installation Guide
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...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. Some platforms have an ESD connector for the Cisco uBR7246VXR Universal Broadband Router 3-3 ...step-by-step instruction on how to the card. Warning When performing the following illustrations. Carefully pull the clock card halfway out of fire, use only No. 26 AWG or larger telecommunication line cord. Caution To prevent jamming the carrier between...
...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. Some platforms have an ESD connector for the Cisco uBR7246VXR Universal Broadband Router 3-3 ...step-by-step instruction on how to the card. Warning When performing the following illustrations. Carefully pull the clock card halfway out of fire, use only No. 26 AWG or larger telecommunication line cord. Caution To prevent jamming the carrier between...
Hardware Installation Guide
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... continue the Cisco Cable Clock Card installation, you are configuring the clock card with a Cisco uBR-MC16S or Cisco uBR-MC16E cable interface line card. If you must configure the primary and/or secondary T1 interfaces. This chapter contains the following sections: • Minimum Software Requirements, page 4-1 • Configuration and Diagnostic Cisco IOS Commands for the Cisco uBR7246VXR Universal Broadband...
... continue the Cisco Cable Clock Card installation, you are configuring the clock card with a Cisco uBR-MC16S or Cisco uBR-MC16E cable interface line card. If you must configure the primary and/or secondary T1 interfaces. This chapter contains the following sections: • Minimum Software Requirements, page 4-1 • Configuration and Diagnostic Cisco IOS Commands for the Cisco uBR7246VXR Universal Broadband...
Hardware Installation Guide
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... the presence of a clock card, if one is installed. Cisco Cable Clock Card Hardware Installation Guide for the Clock Card and Their Descriptions Command Line Description Exec Commands show cable clock Displays clock card status information like primary and ...card hardware information and current register values. Table 4-1 Cisco IOS Commands for the Cisco uBR7246VXR Universal Broadband Router 4-2 OL-26705-01 Configuration and Diagnostic Cisco IOS Commands for the Clock Card Chapter 4 Configuring the Clock Card Configuration and Diagnostic Cisco IOS Commands for the Clock Card...
... the presence of a clock card, if one is installed. Cisco Cable Clock Card Hardware Installation Guide for the Clock Card and Their Descriptions Command Line Description Exec Commands show cable clock Displays clock card status information like primary and ...card hardware information and current register values. Table 4-1 Cisco IOS Commands for the Cisco uBR7246VXR Universal Broadband Router 4-2 OL-26705-01 Configuration and Diagnostic Cisco IOS Commands for the Clock Card Chapter 4 Configuring the Clock Card Configuration and Diagnostic Cisco IOS Commands for the Clock Card...
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... 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 31498 OL-26705-01 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...
... 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 31498 OL-26705-01 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...
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... 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 Figure A-3 Secondary External Clock Source Driving Midplane PA PRI SRC Midplane... 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 A-2 OL-26705-01
... 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 Figure A-3 Secondary External Clock Source Driving Midplane PA PRI SRC Midplane... 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 A-2 OL-26705-01
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Appendix A Clock Source Paths Figure A-4 Secondary Internal Clock Source PA PRI SRC Midplane clk mux Port adapters w/ internal clocking PA PA External 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 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 Router A-3
Appendix A Clock Source Paths Figure A-4 Secondary Internal Clock Source PA PRI SRC Midplane clk mux Port adapters w/ internal clocking PA PA External 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 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 Router A-3