Table Of Contents
Cisco uBR10012 Universal Broadband Router DTCC Card
Revision History
Purpose
Audience
Scope
Contents
Prerequisites
Restrictions
Feature Overview
Part Numbers and Technical Specifications
Safety Warnings
Warning Definition
Electrical Equipment Guidelines
Preventing Electrostatic Discharge Damage
Removing and Replacing the Cisco DTCC Card
Equipment
Unpack the DTCC Card
Remove the DTCC Card
Replace the DTCC Card
Troubleshooting the Cisco DTCC Card
Obtaining Documentation and Submitting a Service Request
Cisco uBR10012 Universal Broadband Router DTCC Card
Revision History
Date
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Revision
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Change Summary
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July 2008
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OL-15406-01
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Updated information on Cisco IOS version supported on DTCC card.
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March 2008
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OL-15406-01
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Updated LED tables.
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December 2007
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OL-15406-01
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Initial release.
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Purpose
The purpose of this document is to provide installation, removal, and troubleshooting information for the DOCSIS Timing & Control Card (DTCC) installed in the Cisco uBR10012 universal broadband router.
Audience
This document is intended for use by a field service engineer who is familiar with Cisco products and headend cable installation procedures.
Warning 
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030.
Scope
This document includes procedures for installing and removing the Cisco DTCC card that comes with the Cisco uBR10012 universal broadband router. This document also includes technical specifications and troubleshooting information.
Contents
•Prerequisites
•Restrictions
•Feature Overview
•Part Numbers and Technical Specifications
•Safety Warnings
•Removing and Replacing the Cisco DTCC Card
•Troubleshooting the Cisco DTCC Card
•Obtaining Documentation and Submitting a Service Request
Prerequisites
The DTCC card is supported beginning in Cisco IOS Release 12.3(23)BC and later. For information on Cisco IOS hardware and software release support and restrictions, refer to
Release Notes for the Cisco uBR10012 Universal Broadband Router for Cisco IOS Release 12.3BC.
Restrictions
The DTCC card is not supported in Cisco IOS Release 12.2(33)SCA and later SCA-based releases.
Feature Overview
On the Cisco uBR10012 universal broadband router, the DOCSIS Timing & Control Card (DTCC) acts as a secondary processor that performs the following functions:
•In the default DTI mode, a 10.24 MHz clock and 32-bit DOCSIS timestamp are generated by the DTI Server, propagated to DTI client using DTI protocol, and distributed by DTI client to each cable interface line card.
•Allows software to independently power off any or all cable interface line cards.
•Drives the LCD panel used to display system configuration and status information.
•Monitors the supply power usage of the chassis.
•Two RJ-45 cables with the DTI server, which, in turn, can generate the clock using its own oscillator or external timing reference inputs such as GPS or network clock.
When two DTCC cards are installed, they are configured as active (primary) and backup (redundant). If the DTCC card in the first slot is working at system power-up, it automatically becomes the active card and the DTCC card in the second slot becomes the backup card. The DTCC cards monitor each other's priority information, so that if the active card fails, the active card role is transferred to the redundant backup card without loss of data.
Each DTCC card contains two RJ-45 connectors labeled Primary and Secondary, on the front panel. See Figure 1. These connectors are for a primary and secondary (redundant) Stratum 3 external clock reference source that is traceable to a Stratum 1 clock source. The external reference source allows the Cisco uBR10012 router's reference clock to be synchronized to the Stratum 1 clock source, providing a free-running DOCSIS-quality clock reference and time stamp to the cable interface line cards.
If present, the primary DTI link is used. If it is lost, the secondary DTI link (if present) on the active DTCC card is used. If the active DTCC card stops functioning, control is transferred to the backup DTCC card, which then uses its primary and secondary clock reference sources. If neither card has a valid clock reference source, In DTI mode, all M-CMTS elements should have common timing source. The internal clock of DTI client cannot be used to provide DOCSIS clock and timestamp. High availability strategies (active/backup card, active/backup ports) should be used to prevent loss of common timing source.
Figure 1 Cisco DTCC Front Panel
The front panel on the DTCC card has seven LEDs. They are labeled POWER, STATUS, MAINTENANCE, PRESENT, and ACTIVE. The second set of PRESENT and ACTIVE LEDs are associated with the primary and secondary external clock reference inputs.
Table 1 describes the LEDs on the DTCC card.
Table 1 DTCC Card LEDs and Their Functions
LED Label
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Color
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State
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Meaning
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POWER
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Green
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On
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Indicates that power is supplied to the DTCC card.
|
| |
Off
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—
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Power is off.
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STATUS- bi-color
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Yellow
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On
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Indicates that the CPU is in the bootup process, self-test, or downloading code.
|
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Green
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On
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Indicates that the CPU has successfully completed the boot, self-test, and code download process, and that the DTCC card is the active card.
|
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Green
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Blinking
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Indicates that the CPU has successfully completed the boot, self-test, and code download process, and that the DTCC card is the backup card.
|
MAINTENANCE
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Off
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—
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Normally off. Indicates that no maintenance action is required.
|
| |
Yellow
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On
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Indicates a required maintenance operation and that the DTCC card can be hot-swapped.
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LINK (DTI1)
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Yellow
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On
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Indicates that DTI port 1 is operating in fast mode and the port is active.
|
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Yellow
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Blinking
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Indicates that DTI port 1 is operating in fast mode and the port is standby.
|
| |
Yellow
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Off
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Indicates that DTI port 1 is not in the fast mode.
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ACTIVE (DTI1)
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Green
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On
|
Indicates that DTI port 1 is operating in normal or bridging mode and the port is active.
|
| |
Green
|
Blinking
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Indicates that the DTI port 1 is operating in normal or bridging mode and the port is standby.
|
| |
Green
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Off
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Indicates that DTI port 1 is not in normal or bridging mode.
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LINK (DTI2)
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Yellow
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On
|
Indicates that DTI port 2 is operating in fast mode.
|
| |
Yellow
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Blinking
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Indicates that DTI port 2 is operating in fast mode and the port is standby.
|
| |
Yellow
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Off
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Indicates that DTI port 2 is not in the fast mode.
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ACTIVE (DTI2)
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Green
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On
|
Indicates that DTI port 2 is operating in normal or bridging mode and the port is active.
|
| |
Green
|
Blinking
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Indicates that the DTI port 2 is operating in normal or bridging mode and the port is standby.
|
| |
Green
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Off
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Indicates that DTI port 2 is not in normal or bridging mode.
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Part Numbers and Technical Specifications
Table 2 lists the specifications for the DTCC card:
Table 2 DTCC Card Specifications
Description
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Specifications
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Product order number
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•UBR10-DTCC=
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Chassis dimensions
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•Height: 4.73 in. (12.0142 cm)
•Width: 1.548 in. (3.93192 cm)
•Depth: 10 in. (25.4 cm)
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Weight
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1.5 lb. (.68 kg)
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Power consumption
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40 Watts (136.5 BTU1 per hour)
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MTBF
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431,348 hours
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Temperature range
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•Operating: 41 to 104×F (5 to 40×C)
•Storage: -40 to 158×F (-40 to 70×C)
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Relative humidity
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•Operating: 5 to 85%
•Storage: 5 to 95%
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Operating altitude
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-197 to 13,123 ft. (-60 to 4000 m)
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Safety Warnings
Warning Definition
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Warning
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IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071
SAVE THESE INSTRUCTIONS
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Waarschuwing
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BELANGRIJKE VEILIGHEIDSINSTRUCTIES
Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt raadplegen.
BEWAAR DEZE INSTRUCTIES
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Varoitus
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TÄRKEITÄ TURVALLISUUSOHJEITA
Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien lausuntonumeroiden avulla.
SÄILYTÄ NÄMÄ OHJEET
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Attention
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IMPORTANTES INFORMATIONS DE SÉCURITÉ
Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.
CONSERVEZ CES INFORMATIONS
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Warnung
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WICHTIGE SICHERHEITSHINWEISE
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.
BEWAHREN SIE DIESE HINWEISE GUT AUF.
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Avvertenza
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IMPORTANTI ISTRUZIONI SULLA SICUREZZA
Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le traduzioni delle avvertenze riportate in questo documento.
CONSERVARE QUESTE ISTRUZIONI
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Advarsel
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VIKTIGE SIKKERHETSINSTRUKSJONER
Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne enheten.
TA VARE PÅ DISSE INSTRUKSJONENE
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Aviso
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INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.
GUARDE ESTAS INSTRUÇÕES
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¡Advertencia!
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INSTRUCCIONES IMPORTANTES DE SEGURIDAD
Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña a este dispositivo.
GUARDE ESTAS INSTRUCCIONES
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Varning!
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VIKTIGA SÄKERHETSANVISNINGAR
Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna anordning.
SPARA DESSA ANVISNINGAR
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Electrical Equipment Guidelines
Follow these basic guidelines when working with any electrical equipment:
•Before beginning any procedures requiring access to the chassis interior, locate the emergency power-off switch for the room in which you are working.
•Disconnect all power and external cables before moving a chassis.
•Do not work alone when potentially hazardous conditions exist.
•Never assume that power has been disconnected from a circuit; always check.
•Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
•Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are improperly handled, can result in complete or intermittent failures. The AC-input power shelf and its AC power modules contain a printed circuit card that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to protect the cards from ESD, use an anti-static strap each time you handle the modules.
Following are guidelines for preventing ESD damage:
•Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. Before removing a card from the chassis, connect the equipment end of the strap to a bare metal, unpainted surface on the chassis or rack-mount.
•Handle components by the carrier edges only; avoid touching the card components or any connector pins.
•When removing a module, place it on an anti-static surface or in a static-shielding bag. If the module will be returned to the factory, immediately place it in a static-shielding bag.
•Avoid contact between the modules and clothing. The wrist strap protects the card from ESD voltages on the body only; ESD voltages on clothing can still cause damage.
Caution For safety, periodically check the resistance value of the anti-static strap. The measurement should be between 1 and 10 megohms.
Removing and Replacing the Cisco DTCC Card
To install a new DTCC card or to replace an existing card, use the procedures that follow.
Tip If two DTCC cards are installed for redundant operation, one of the cards can be removed and replaced without interrupting system operations.
Equipment
To remove and replace an individual Cisco LCD module, you need the following:
•Replacement DTCC card, product order number UBR10-DTCC=.
•ESD-preventive wrist strap.
Unpack the DTCC Card
To unpack the DTCC card, complete the following steps:
Step 1 Make sure that you are properly grounded with an ESD-preventive ground strap.
Step 2 Open the shipping box and remove the DTCC card.
Step 3 Place the DTCC card on an anti-static surface.
Remove the DTCC Card
Step 1 Make sure that you are properly grounded.
Step 2 Clear enough interface and power cables to allow sufficient space to work.
Step 3 If installing a new DTCC card, remove the blank slot cover and discard it; then, proceed to Step 1. Otherwise, disconnect the DTI connection cables from the DTCC card being replaced.
Note The backup DTCC card should be present in order to maintain proper synchronization of the line cards.
Step 4 Unscrew the top and bottom captive screws on the DTCC card (Figure 2).
Step 5 Pull the DTCC card out of the slot and place it on an anti-static surface or in an anti-static bag.
Figure 2 DTCC Card Captive Screws
Figure 3 Removing the DTCC Card
Step 6 If you are installing a replacement card, proceed to the next step. Otherwise, install a blank cover over the slot and screw down its captive screws to conclude this procedure.
Note For proper cooling and airflow, a cover must always be installed in a blank DTCC card slot. The product order number for the blank DTCC card cover is UBR10-DTCC-COVER=.
Replace the DTCC Card
Step 1 Pick up the replacement DTCC card, and position it in front of the card slot.
Step 2 Carefully align the upper and lower edges of the line card with the upper and lower guides in the chassis, and slide the line card into the slot, so that it firmly seats in the backplane connectors (Figure 4).
Figure 4 Inserting the DTCC Card
Step 3 Secure the line card in the chassis by tightening the top and bottom captive screws (Figure 2).
Caution Always tighten the captive screws on each DTCC card. These screws prevent accidental removal and provide proper grounding for electromagnetic interference (EMI) shielding.
Step 4 When fully inserted, the DTCC card cycles through its power-on self-test. If the STATUS LED remains yellow or remains off, the card is not working properly. See the "Troubleshooting the Cisco DTCC Card" section.
Step 5 Connect DTI ports to DTI Server. The port can be connected either to the Root Server, or subtending Slave Server, in the way that all ports have common Root Server.
Step 6 Configure the DTCC card, if necessary.
Refer to "Formatting Flash Memory Cards and Disks" section in the Cisco uBR10012 Universal Broadband Router Hardware Installation Guide or the Cisco uBR10012 Universal Broadband Router Software Configuration Guide, see the "Troubleshooting the Cisco DTCC Card" section.
Note It is not necessary to configure the DTCC card if you are installing a replacement card in the identical slot. The system automatically downloads the necessary configuration information from the performance routing engine (PRE).
Troubleshooting the Cisco DTCC Card
Check the following if a problem appears on one of the PRE modules:
•If both PREs are operating correctly, check the POWER LEDs on each DTCC card. Are the POWER LEDs on each DTCC card on (green)?
–If no, remove the DTCC card and reinsert it, making sure that it firmly connects to the backplane and that both captive screws are tightly connected.
–If yes, proceed to the next step.
•Is the STATUS LED on the primary DTCC card on (green) to indicate that it is the primary card?
Is the STATUS LED on the secondary DTCC card flashing (green) to indicate that it is the redundant card?
–If no, check that the version of Cisco IOS you have loaded on the router supports the DTCC card.
•Is the Green DTI Status LED on the active port of primary card on, to indicate that DTI connection is valid?
•Check that the version of Cisco IOS supports the DTCC card.
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
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