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Product Number: DS5814-DC-FLT=
The Cisco AS5800 Universal Access Server is equipped with a passive DC power filter, which contains a broadband electromagnetic interference (EMI) filter and circuitry for monitoring power coming into the Cisco 5814 dial shelf. The DC power filter is housed in the filter module, which resides in the dial shelf between the two power entry modules (PEMs).
This document explains how to remove and replace the filter module in the Cisco 5814 dial shelf chassis.
The following sections are included in this document:
For information regarding the Cisco AS5800 Universal Access Server that is beyond the scope of this document or for additional information, use the following resources:
The Cisco AS5800 Universal Access Server is a high-density, ISDN and modem WAN aggregation system that provides both digital and analog call termination. It is intended to be used in service provider dial point-of-presence (POP), or centralized enterprise dial environments. The Cisco AS5800 Universal Access Server chassis components include a Cisco 5814 dial shelf and a Cisco 7206 router shelf. An optional AC power shelf is also available.
The dial shelf and router shelf are bundled, and can be ordered to support either AC or DC power. Included in the dial shelf is a blower assembly, filter module, and power entry modules (PEMs). Also included in the bundled system are ingress trunk cards, modem cards, dial shelf controller cards, Flash memory PCMCIA cards, cables, and Cisco IOS software. The dial shelf feature cards and host router shelf communicate via a dial shelf interconnect cable.
The dial shelf contains 14 slots (numbered 0 through 13 on the backplane) and can support up to 10 modem cards, 2 trunk cards, and 2 dial shelf controller cards (in the near future). The router shelf supports the dial shelf and performs all routing and packet processing. The router shelf also houses the main system software images.
Figure 1 shows a front view of a fully configured Cisco AS5800 Universal Access Server, and Figure 2 shows a rear view.
The Cisco AS5800 Universal Access Server is equipped with a passive DC power filter in the dial shelf, which contains a broadband electromagnetic interference (EMI) filter and circuitry for monitoring power coming into the dial shelf. The DC power filter is housed in the filter module, which resides in the dial shelf between the two power entry modules (PEMs).
The DC power filter supports the following functions:
The front and top of the filter module are perforated for minimum air flow restriction. There are no connectors accessible from the front; however, a DB-9 connector at the base of the filter module (visible only from below the dial shelf) connects a monitor cable to an optional AC-input power shelf.
You install the filter module in the Cisco 5814 dial shelf from the rear and plug it directly into the backplane. It is located below a removable rear cover, between the two PEMs, as shown in Figure 3.
Table 1 lists the filter module DC power requirements.
| Description | Specification |
|---|---|
Input voltage | |
|
-20 (10 mS) |
Output voltage | |
|
-38 VDC |
Current | |
|
3.0A |
| Circuit breaker | 50A |
Table 2 lists the filter module DB-9 connector pinout information.
| Pin | Signal Description |
|---|---|
| 1 | Spare |
| 2 | Ground |
| 3 | AC power shelf fault signal |
| 4 | AC power shelf overtemperature signal |
| 5 | AC power failure warning signal |
| 6 | AC power shelf missing module |
| 7 | Ground |
| 8 | Ground |
| 9 | Ground |
Table 3 lists the DC power filter environmental specifications.
| Specification | Description |
|---|---|
| Cooling | Maximum inlet air temperature is 131° F (55° C) |
Temperature | |
|
23° F to 131° F (-5° C to 55° C) |
Humidity | |
|
10% to 90%, noncondensing |
Altitude | |
|
9,843 ft (3,000 meters) at 104° F (40° C) |
Thermal shock | |
|
23° F to 113° F (-5° C to 45° C at 0.5° C) per minute |
Vibration | |
|
1.12 Grms from 3 to 500 Hz |
| Ripple and noise | 200 mV |
| Battery feed noise | 3kHz band between 10KHz and 20 MHz |
|
70 dBrnC |
| Long-term voltage drift | +/- -0.5% |
| Regulatory compliance | ENG-5769 UL 1950 CSA 22.2-950-95 EN 60 950 ACA TS001, AS3260 IEC-801 Bellcore NEBS TR-NWT-000063 Bellcore NEBS TR-NWT-001089 |
This section provides safety and ESD-prevention guidelines to help you avoid injury to yourself and avoid damage to the equipment.The following safety guidelines are recommended when working with any equipment that connects to electrical power or telephone wiring:
The following guidelines are recommended when working with any equipment that is connected to telephone wiring or to other network cabling:
Electrostatic discharge (ESD) damages equipment and impairs electrical circuitry. ESD occurs when printed circuit boards are improperly handled and results in complete or intermittent failures.
The system feature cards and dial shelf controller cards consist of a printed circuit board that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding, connectors, and a handle are integral components of the carrier. Handle the system feature cards and dial shelf controller cards by their carrier edges and ejector levers only; never touch the printed circuit board components or connector pins.
Although the metal carrier helps to protect the printed circuit boards from ESD, wear a preventive antistatic strap whenever handling the dial shelf feature cards or dial shelf controller cards, or the router shelf network processing engine, I/O controller, or port adapters. Ensure that the strap makes good skin contact and connect the strap's clip to an unpainted chassis surface to safely channel unwanted ESD voltages to ground.
The following guidelines are recommended to prevent ESD damage:
 | Caution Periodically check the resistance value of the antistatic strap. The measurement should be within the range of 1 and 10 megohms. |
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. To see translations of safety warnings pertaining to the access server, refer to the Cisco AS5800 Universal Access Server Regulatory Compliance and Safety Information document that shipped with your system.
 | 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.
This section explains how to remove and replace the filter module in the dial shelf chassis. This section also provides a list of tools and parts you need.
| Warning Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that power is removed from the DC or optional AC circuits. To ensure that all power is off, locate the circuit breakers on the panel boards that service the DC or AC circuits, switch the circuit breakers to the OFF (O) position, and tape the switch handles of the circuit breakers in the OFF (O) position. |
| Warning When installing the unit, the ground connection must always be made first and disconnected last. |
You need the following parts and tools to remove and replace the filter module. If you need additional equipment, contact a service representative for ordering information.
If your Cisco AS5800 Universal Access Server is installed in a standard 19-inch, 4-post or standard telco rack, cables from other equipment in the rack might obstruct access to the system rear. The rack power strips or other permanent fixtures might also cause obstruction.
Use the following guidelines to ensure easy system access when the system is installed in a rack:
This procedure is ideally performed during a scheduled maintenance time. If not, you must first power off the dial shelf as follows:
Step 1 Power OFF (O) the power switch located on each dial shelf PEM front panel. (See Figure 4.)
Step 2 If you are using the optional AC-input power shelf, power OFF (O) the power switches on the AC-input power shelf front panel. (See Figure 5.)
To remove the filter module from the dial shelf, complete the following steps:
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Ensure the PEM green power LEDs are both off.
Step 3 Using a 1/4-inch flat-blade screwdriver, loosen the captive screws on the filter module front panel.
Step 4 If you are using the optional AC-input power shelf, disconnect the monitor cable DB-9 connector from the base of the filter module, as shown in Figure 6.
| Caution The filter module weighs 5.5 lb (2.5 kg). Use two hands when removing or replacing the filter module. |
Step 5 Grasp the filter module handle and gently pull the filter module about halfway out of the dial shelf chassis. (See Figure 7.)
Step 6 Holding the filter module handle with one hand, place your other hand under the module for support.
Step 7 Pull the filter module from the dial shelf chassis and place it in an antistatic bag to return to the factory.
This completes the filter module removal process. Proceed to the section "Replacing the Filter Module."
To replace the filter module, complete the following steps. When you are finished, use a Site Log sheet to record service maintenance.
Step 1 Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.
Step 2 Using tow hands to guide it, gently push the new filter module into the dial shelf chassis until it connects firmly with the backplane.
| Caution When inserting the filter module, do not use unnecessary force as it can damage the connectors. |
Step 3 Using a 1/4-inch flat-blade screwdriver, tighten the captive screws.
Step 4 If you are using the optional AC-input power shelf, connect the monitor cable DB-9 connector at the base of the filter module and tighten the jackscrews. Verify that the DB-25 connector at the other end of the cable is connected to the AC-input power shelf (see Figure 6). Power ON the AC-input power shelf.
Step 5 Power ON ( | ) the power switches located on each dial shelf PEM front panel.
Step 6 Note service maintenance on your Site Log sheet.
This completes the procedure for removing and replacing the filter module. If you have questions or need assistance, proceed to the section "Cisco Connection Online."
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