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Product Numbers: AS53-AC-RPS= , AS53-DC-RPS=
This document describes how to replace an existing AC power supply with an AC redundant power supply or a DC power supply with redundant DC power supply. It also includes the following sections:
Use this document with the Cisco AS5300 Universal Access Server Chassis Installation Guide, Cisco AS5300 Universal Access Server Module Installation Guide, Cisco AS5300 Universal Access Server Software Configuration Guide, and the Regulatory Compliance and Safety Information publications that shipped with the Cisco AS5300.
Follow these guidelines to ensure general safety:
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each safety warning.
Warning 
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. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.
Waarschuwing 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 standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.
Varoitus Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).
Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.
Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.
Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.
Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.
Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.
¡Advertencia! Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.
Varning! Denna varningssymbol 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 vanligt förfarande för att förebygga skador. Se förklaringar av de varningar som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.
| Warning Read the installation instructions before you connect the system to its power source. |
| Warning Ultimate disposal of this product should be handled according to all national laws and regulations. |
| Warning Only trained and qualified personnel should be allowed to install or replace this equipment. |
| Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. |
| Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
Follow these guidelines when working on equipment powered by electricity:
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when electronic printed circuit cards are improperly handled and can result in complete or intermittent failures. Always follow ESD prevention procedures when removing and replacing cards. Ensure that the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted ESD voltages to ground. To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground yourself by touching the metal part of the chassis.
 | Caution For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10 megohm (Mohm). |
Both the AC and DC redundant power supply kits include the following;
To remove or install the power supplies, you will also need the following tools and equipment (which are not included):
This section describes how to access the internal components by removing the chassis cover.
| Warning Do not touch the power supply when the power cord is connected. For systems with a power switch, line voltages are present within the power supply even when the power switch is off and the power cord is connected. For systems without a power switch, line voltages are present within the power supply when the power cord is connected. |
| Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. |
| Warning Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages. |
| Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
Warning This unit has more than one power cord. To reduce the risk of electric shock, disconnect the two power supply cords before servicing the unit.
To remove the chassis cover:
Step 1 Turn the power switch on the access server OFF and disconnect the site power cable.
Step 2 Remove all interface cables from the rear panel of the access server.
Step 3 Place the access server so that the front panel is facing you.
Step 4 Remove the four screws on the chassis cover as shown in Figure 1, and set them aside.
Step 5 Lift the chassis cover upward as shown in Figure 2, and pull it away from the tabs on the rear of the chassis. Set aside the cover.
This section describes how to remove the power supply. Note the following safety warnings before you remove the power supply:
| Warning Ultimate disposal of this product should be handled according to all national laws and regulations. |
| Warning Only trained and qualified personnel should be allowed to install or replace this equipment. |
| Warning Read the installation instructions before you connect the system to its power source. |
| Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. |
| Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
To remove the power supply:
Step 1 Place the access server so that the rear panel is facing you.
Step 2 Remove the three mounting screws that secure the power supply to the chassis and set them aside.
Step 3 Turn the access server so that the front panel is facing you.
Step 4 Lift the air separator out of the chassis. (See Figure 7.)
Step 5 Pull the fan closest to the power supply away from the sheet metal tabs. (See Figure 8.)
Step 6 Lift the fan out of the chassis as shown in Figure 9, and set the fan on top of the power supply.
Step 7 Depress the tab as shown in Figure 10.
| Caution Do not attempt to remove the fan cables without first depressing the tab as shown in Figure 10. You can damage the fan cables by applying stress if the connector is not removed properly. |
Step 8 Disconnect the fan cable as shown in Figure 10, and set aside the fan.
Step 9 Remove the next fan and disconnect its cable.
Step 10 Remove the cables for the two remaining fans. You can disconnect these cables without removing the fans.
Step 11 Disconnect the power connectors from the backplane as shown in Figure 11. First disconnect the 2-pin 12V connector, then disconnect the power connector's 4-jack harness.
Step 12 Slide the power supply toward the front panel to disengage the power supply hook from the chassis hook as shown in Figure 12. Then remove the power supply from the chassis.
| Warning Ultimate disposal of this product should be handled according to all national laws and regulations. |
A redundant power supply has two power cords to provide higher reliability and load balancing. Use the redundant power supply to:
To install the redundant power supply:
Step 1 Place the redundant power supply as shown in Figure 13, then slide it toward the rear panel. You will be able to feel the chassis hook engage with the slot on the bottom of the power supply.
Step 2 Connect the 6-pin connector to the motherboard, as shown in Figure 14. Note that, for clarity, the illustration does not show the fans in place or the fan cables.
Step 3 Reconnect the power connector's 4-jack harness, then reconnect the 2-pin 12V connector, as shown in Figure 15.
Step 4 Route the fan cables exactly as shown in Figure 16. Note that the two longest cables are connected to the two installed fans on the right. The connectors to these two fans will fit into the space between the second and third fans.
Step 5 Insert the second fan as shown in Figure 16, making sure that the fan cable feeds to your left. Position the cables to the two installed fans so that they will fit under the first and second fans. Press the fan into place between the four sheet metal tabs.
Step 6 Reconnect the two 2-pin fan cables to the remaining fan, as shown in Figure 17.
Step 7 Reinstall the remaining fan. Make sure you orient the fan so that the cables feed to the right (toward the second fan). Then route the cable completely under the fan before you reconnect it. This takes up the extra length of fan cable and keeps it out of the way. When correctly assembled, the cables appear as shown in Figure 18.
Step 8 Replace the air separator as shown in Figure 19, holding all cables to the right of the separator as you slip it into the chassis.
Step 9 Turn the access server so that you face the rear panel, and then reinstall the three mounting screws as shown in Figure 20 for the AC redundant power supply and Figure 21 for the DC redundant power supply.
Step 10 Replace the chassis cover as described in the next section, "Replacing the Chassis Cover."
To replace the chassis cover:
Step 1 Turn the chassis so that the front panel is facing you.
Step 2 Hold the chassis cover over the chassis bottom at an angle, and align each of the cover tabs with the chassis tabs at the top rear of the chassis, as shown in Figure 22.
Step 3 Lower the front of the chassis cover to close the chassis, and ensure the following:
When the chassis cover is properly assembled, no tabs are visible, as shown in Figure 23.
Step 4 Secure the chassis cover with four screws.
Step 5 Reinstall the chassis on a rack, desktop, or table.
Step 6 Turn the chassis around so that you face the front panel and reinstall all interface cables.
Step 7 If you are installing a DC power supply in a central office, be sure to connect your grounding wire from the Cisco AS5300 chassis to a reliable ground.
Step 8 Connect all AC or DC power cords.
Step 9 Power ON the access server.
The internal power supply fan should power on and the six green LEDs on the front of the power supply should light. If one LED is not lit, consult the appropriate redundant power supply software message to determine where the problem is located.
The following Cisco IOS releases fully support the redundant power supply, however, you can use the redundant power supply with older releases for load balancing purposes only.
When the Cisco IOS software detects a failure or recovery from the redundant power supply unit, the Cisco IOS software sends an SNMP message to the configured SNMP server. Unlike messages that are sent to the console every minute, only one SNMP message is sent when the failure is first detected and another one is sent when the recovery is detected. Use this section to manage your Cisco AS5300 universal access server to use SNMP traps (messages). If you do not want to implement SNMP traps, skip this section.
| Step | Command | Purpose |
|---|---|---|
| 1 | 5300> enable Password: <password> 5300# | Enter enable mode (also called privileged EXEC mode). Enter the password. You have entered enable mode when the prompt changes to |
| 2 | 5300# configure term | Enter the configuration mode. |
| 3 | 5300(config)# snmp-server enable traps envmon | Begin sending traps that monitor the environment. |
| 4 | 5300(config)# snmp-server host IP address | Configure the Cisco AS5300 to send SNMP traps to the configured IP address, and the defined the community string, in the SNMP trap. |
| 5 | 5300(config)# exit | Exit the configuration mode. |
| 6 | 5300# write memory | Save the configuration to NVRAM. |
To verify you have enabled sending SNP traps for Redundant Power Supply events:
5300# show running-config Building configuration... Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname as5300 ! ip subnet-zero ! ! interface Ethernet0 ip address 1.16.44.23 255.255.255.0 no ip directed-broadcast ! interface FastEthernet0 no ip address no ip directed-broadcast shutdown ! ip classless ip route 0.0.0.0 0.0.0.0 Ethernet0 ip route 223.255.254.0 255.255.255.0 Ethernet0 ! snmp-server community public RO snmp-server enable traps snmp snmp-server enable traps isdn call-information snmp-server enable traps config snmp-server enable traps entity snmp-server enable traps envmon snmp-server enable traps bgp snmp-server enable traps frame-relay snmp-server enable traps syslog snmp-server host 172.22.19.7 traps public ! line con 0 transport input none line aux 0 line vty 0 4 login ! end
If you are having trouble:
To display the current status of the Redundant Power Supply unit (if present):
5300# show environment Power Supply:Redundant Power System is present. RPS Input Voltage status: normal RPS Output Voltage status: normal RPS Fan status: normal RPS Thermal status: normal RPS OverVoltage status: normal
Board Temperature:normal
5300#
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Posted: Fri Feb 19 14:08:25 PST 1999
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