Introduction to Cisco 3800 Series Routers Hardware Documentation This introduction discusses the objectives, audience, and conventions of hardware documentation for Cisco 3800 series integrated services routers, and describes related documents where you can find additional information.
Audience • Installing CompactFlash Memory Cards in Cisco 3800 Series Routers • Installing and Upgrading Internal Components in Cisco 3800 Series Routers For software configuration information, see the Cisco 3800 series software configuration documents and the Cisco IOS configuration guides and command references. These publications are available online on Cisco.com. See the “Obtaining Documentation” section on page 11 for more information.
Safety Warnings Tip Caution Means the following information will help you solve a problem. The tips information might not be troubleshooting or even an action, but could be useful information, similar to a Timesaver. Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data. Safety Warnings Safety warnings appear throughout these documents in procedures that, if performed incorrectly, may harm you.
Safety Warnings Attention 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.
Safety Warnings ¡Advertencia! 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.
Safety Warnings Aviso INSTRUÇÕES IMPORTANTES DE SEGURANÇA Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham o dispositivo.
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Related Documentation Related Documentation The Cisco IOS software that runs on your Cisco 3800 series router includes extensive features and functionality. For information beyond the scope of these hardware documents, see the resources listed in Table 2. Timesaver Make sure that you have access to the documents listed in Table 2. These documents are available on Cisco.com.
Cisco 90-Day Limited Hardware Warranty Terms Cisco 90-Day Limited Hardware Warranty Terms There are special terms applicable to your hardware warranty and various services that you can use during the warranty period. Your formal Warranty Statement, including the warranties and license agreements applicable to Cisco software, is available on Cisco.com. Follow these steps to access and download the Cisco Information Packet and your warranty and license agreements from Cisco.com. 1.
Obtaining Documentation To Receive a Return Materials Authorization (RMA) Number Contact the company from whom you purchased the product. If you purchased the product directly from Cisco, contact your Cisco Sales and Service Representative.
Documentation Feedback Documentation Feedback You can send comments about technical documentation to bug-doc@cisco.com. You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address: Cisco Systems Attn: Customer Document Ordering 170 West Tasman Drive San Jose, CA 95134-9883 We appreciate your comments.
Obtaining Additional Publications and Information To open a service request by telephone, use one of the following numbers: Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227) EMEA: +32 2 704 55 55 USA: 1 800 553 2447 For a complete list of Cisco TAC contacts, go to this URL: http://www.cisco.com/techsupport/contacts Definitions of Service Request Severity To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.
Obtaining Additional Publications and Information • iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies learn how they can use technology to increase revenue, streamline their business, and expand services. The publication identifies the challenges facing these companies and the technologies to help solve them, using real-world case studies and business strategies to help readers make sound technology investment decisions.
Overview of Cisco 3800 Series Routers Cisco 3800 series integrated services routers are part of a new generation of routers that incorporate high-performance integrated data, voice, video, and virtual private network (VPN) capability, including hardware-based VPN encryption acceleration, in a modular design that provides the flexibility to configure your router according to your needs.
Router Descriptions Figure 1 Front View of Cisco 3825 Router R 1 FLASH 0 Figure 2 SYS AUX ACT RPS IP PWR AIM0 AIM1 117040 COMPACT PVDM0 PVDM1 PVDM2 PVDM3 Front Panel of Cisco 3825 Router 2 1 3 4 5 6 100-240 V~ 3A 50/60 Hz 1 0 SYS ACT SYS PWR RPS AUX PWR AIM0 AIM1 PVDM0 PVDM1 PVDM2 PVDM3 116841 COMPACT FLASH CF DO NOT REMOVE DURING NETWORK OPERATION 1 Cisco Redundant Power System (RPS) connector 4 LED indicators 2 CompactFlash memory card slot 5 Power switch 3 U
Router Descriptions Figure 4 Rear Panel of Cisco 3825 Router 1 NMDESW36 2 FastEthernet Ports 35x 18x Ext Pwr GE1 -48V GE0 10/100/ 1000 Base-Tx EN 10/100/1000 17x Base-Tx 0x 35x 17x NMESW16 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x 29x 11x 28x 10x 27x 9x -48V GE 10/100/ 1000 Base-Tx 26x 8x 25x 24x 6x 23x 5x 22x 4x 21x 3x 20x 2x 19x 1x 18x 0x CONSOLE FastEthernet Ports 15x 8x Ext Pwr EN 7x 1 17 0x 15x 7x 14x 6x 13x 5x 12x 4x 11x 3x 10x 2x 9x 1x 8x 0x H
Router Descriptions Figure 6 Front Panel of Cisco 3845 Router 2 3 4 1 LED indicators 3 Power connector (AC shown) 2 Power switch 4 Location of optional second power supply Rear View of Cisco 3845 Router 117774 Figure 7 116843 1 Overview of Cisco 3800 Series Routers 4 OL-5966-01
Product Identification Figure 8 Rear Panel of Cisco 3845 Router 1 3 2 15 4 5 7 6 8 GE 0/1 CONSOLE 1 0 9 HWIC 3 PVDM 3 PVDM 2 HWIC 1 HWIC 2 AUX PVDM 1 PVDM 0 AIM 1 AIM 0 SPD LNK SPD LNK HWIC 0 SFP CF Do Not Remove During Network Operation GE 0/0 3 CISCO3845 4 116844 1 2 10 11 12 14 13 1 USB ports 8 Gigabit Ethernet ports 2 Console and auxiliary ports 9 Slot for optional SFP module 3 HWIC slot 3 10 Network module slot 4 4 HWIC slot 2 11 Network module slo
Built-In Ports NMESW16 Cisco 3845 Router Serial Number Location 121293, 781-00283-01 B0 Figure 10 15x FastEthe rnet Port s 8x 7x 15x 7x Ext Pwr 14x -48V 6x 13x GE 5x 12x 4x 11x 3x 10x 2x 9x 0x 1x 8x 10/10 1000 0/ Base-Tx EN 0x SN: XXXNNNNXXXX SN: XXXNNNNXXXX Note The serial number for Cisco 3825 and Cisco 3845 routers is 11 characters long.
Module and Interface Card Capacity Module and Interface Card Capacity Optional network modules and interface cards provide Cisco 3800 series routers with additional interfaces or functionality. Network Modules Network modules install directly into slots in the rear of the router. The Cisco 3845 router supports online insertion and removal (OIR, or hot swap) of network modules. The Cisco 3825 router does not support OIR. Caution The Cisco 3845 router supports OIR with similar modules only.
Module and Interface Card Capacity Note The terms single-wide, extended single-wide, double-wide, and extended double-wide refer to the physical size of a network module. Enhanced network modules offer additional functionality; this functionality is not directly related to the module’s size. Note The Cisco 3825 router supports one high-density analog-digital extension module for voice and fax. The Cisco 3845 module supports two of these modules.
Port Numbering Certain interface card configurations require the installation or removal of a slot divider in the router’s interface card slot. All slots must be covered by interface cards or blank faceplates for cooling, electromagnetic interference (EMI) reduction, and safety. Procedures for installing interface cards, slot dividers, and blank faceplates are described in “Installing Interface Cards in Cisco 3800 Series Routers” and the Cisco Interface Cards Installation Guide.
Port Numbering Note In the Cisco 3845 router, double-wide or extended double-wide network modules are identified by slot numbers 1 and 3. Ports in a network module are normally numbered from right to left and bottom to top, starting at 0. See the Cisco Network Modules Hardware Installation Guide for more information. Interface Card Ports Interface cards can be inserted either directly into a router slot, or into a slot in a network module.
Memory Memory Cisco 3800 series routers contain the following types of memory: • Main memory consists of ECC DDR SDRAM. It stores the running configuration and routing tables, and buffers packets at the network interfaces. Both routers ship with 256 MB of main memory. The two DIMM slots can be upgraded with 128-MB, 256-MB, or 512-MB DIMMs to a maximum of 1024 MB (1 GB). • An external CompactFlash memory card stores the Cisco IOS software image.
LED Indicators LED Indicators LEDs can help you monitor your router’s performance and operation by providing power, activity, and status information. For an explanation of LED activity during power-up, see the “Verifying LED Indications” section on page 34 of “Powering Up Cisco 3800 Series Routers.” To use LEDs for troubleshooting, see Table 1 in “Troubleshooting Cisco 3800 Series Routers.
Technical Specifications Table 2 Cisco 3825 Router Specifications (continued) Specification Value AC input power • Input voltage 100–240 VAC, autoranging • Frequency 47–63 Hz • Input current 3 A (8 A for IP phone support) at 110 V 2 A (4 A for IP phone support) at 230 V • Inrush surge current 50 A maximum, one cycle (–48V IP phone power included) DC input power • Input voltage 24–60 VDC, positive or negative, autoranging • Input current 12 A at 24 V; 5 A at 60 V • Inrush surge curren
Technical Specifications Table 3 Cisco 3845 Router Specifications Specification Value Dimensions (H x W x D) 5.25 x 17.25 x 16.0 in. (13.3 x 43.8 x 40.
Regulatory Compliance Regulatory Compliance For complete regulatory compliance information, see the Cisco 2800 Series and Cisco 3800 Series Integrated Services Routers Regulatory Compliance and Safety Information document that accompanied the router.
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Preinstallation Requirements and Planning for Cisco 3800 Series Routers This document describes preinstallation requirements and planning for Cisco 3800 series integrated services routers.
Safety Recommendations Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place.
General Site Requirements • If an electrical accident occurs, proceed as follows: – Use caution; do not become a victim yourself. – Turn off power to the device. – If possible, send another person to get medical aid. Otherwise, assess the victim’s condition and then call for help. – Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate action.
General Site Requirements Warning The device is designed for connection to TN and IT power systems. Statement 1007 The AC power supply autoselects either 110 V or 220 V operation. All routers include a 6-foot (1.8-meter) electrical power cord. A label near the power inlet indicates the correct voltage, frequency (AC-powered systems only), and current draw for the router. Table 1 lists power requirements for Cisco 3800 series routers.
General Site Requirements Site Configuration The following precautions help you plan the operating environment for your router and help avoid environmentally caused equipment failures: • Ensure that the room where your router operates has adequate circulation. Electrical equipment generates heat. Without adequate circulation, ambient air temperature may not cool equipment to acceptable operating temperatures.
Installation Checklist Installation Checklist This sample installation checklist lists steps in installing a new router. Make a copy of it and mark the entries when completed. Include a copy of the checklist for each router in your site log (described in the next section, “Creating a Site Log”).
Creating a Site Log Creating a Site Log The site log contains a record of all actions related to the router. Keep it in an accessible place near the router, where anyone who performs these actions has access to it. Site log entries might include the following information: • Installation progress—Make a copy of the installation checklist and insert it into the site log. Make an entry as each procedure is completed.
Required Tools and Equipment for Installation and Maintenance Required Tools and Equipment for Installation and Maintenance You need the following tools and equipment to install and upgrade the router and its components: • Number 1 and number 2 Phillips screwdrivers • Equipment rack and screws to attach router mounting brackets to the rack • Wire and wire-crimping tool for connecting the router chassis to earth ground – – AWG 6 (13 mm2) wire for NEBS-compliant chassis grounding – – AWG 14 (2 mm2) or l
Installing Cisco 3800 Series Routers in an Equipment Rack This document describes how to install Cisco 3800 series integrated services routers in an equipment rack. After mounting the router in the rack, you must connect the chassis to a reliable earth ground.
Rack-Mounting the Router Rack-Mounting the Router Mount the router in the equipment rack before making network and power connections. Warning To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the weight of the unit.
Rack-Mounting the Router Figure 2 Rack-Mounting Brackets for Cisco 3845 Routers Bracket pair for 23-inch rack 117982 Bracket pair for 19-inch rack You can mount the router in the following ways: • Center mounting—Brackets attached in the center of the router with either the front panel or the rear panel facing forward • Front mounting—Brackets attached at the front of the router with the front panel facing forward • Rear mounting—Brackets attached at the rear of the router with the rear panel fac
Rack-Mounting the Router Figure 3 Bracket Installation for Front Mounting Left bracket for 23-inch rack Left bracket for 19-inch rack Use six screws on each side.
Rack-Mounting the Router Bracket Installation for Center Mounting with Front Panel Forward 117985 Figure 5 Left bracket for 23-inch rack Left bracket for 19-inch rack Right bracket for 19-inch rack Right bracket for 23-inch rack Use six screws on each side.
Grounding the Router Install the router in the rack, using two screws for each side. Rack-mounting screws should be supplied with the rack; they are not provided with the router. Caution Tip Be sure to leave space above and below each router in a rack, to allow for cooling air circulation. Start the lower pair of screws first. Rest the brackets on the lower screws while you insert the upper pair of screws.
Grounding the Router You must connect the router chassis to a reliable earth ground. The ground wire must be installed in accordance with local electrical safety standards. • For NEBS-compliant grounding, use size AWG 6 (13 mm2) wire and the two-hole barrel lug provided in the router accessory kit. • For NEC-compliant grounding, use size AWG 14 (2 mm2) or larger wire and an appropriate user-supplied ring terminal.
Grounding the Router Figure 9 NMESW16 NEBS-Compliant Two-Hole Barrel Lug Ground Connection on Cisco 3845 Router 15x FastEthe rnet Port s 8x 7x Ext Pwr -48V 14x 6x 13x 5x 12x 4x 11x 3x 10x 2x 9x GE 10/10 1000 0/ Base-Tx 0x 1x 8x EN 0x 122284 15x 7x Ground lug attachment Figure 10 NMDESW36 Ring Terminal Ground Connection on Cisco 3825 Router 35x GE1 FastEthe rnet Ports 10/100/100 Base-Tx 0 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x 29x 11x 18x 28x 10x 27x 9x 26x 8x Ex
Grounding the Router Figure 11 NMESW16 Ring Terminal Ground Connection on Cisco 3845 Router 15x FastEthe rnet Port s 8x 7x Ext Pwr 14x -48V 6x 13x 5x 12x 4x 11x 3x 10x 2x 9x 0x 1x 8x GE 10/10 1000 0/ Base-Tx EN 0x 103929 15x 7x Ring terminal attachment After the router has been installed and grounded, you can connect power cables; WAN, LAN, and voice cables; and cables for administrative access, as required for your installation.
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Connecting Cables to Cisco 3800 Series Routers This document describes how to connect your Cisco 3800 series integrated services router to a power source and to networks and external devices. It includes the following sections: • Power Connections, page 19 • Connecting WAN, LAN, and Voice Cables, page 28 • Connecting a Console or Modem, page 29 Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Power Connections Connecting Routers to AC Power If your router uses AC power, connect it to a 15 A, 120 VAC (or 10 A, 240 VAC) circuit with overcurrent protection. If backup power is required, see the “Connecting Routers to Backup Power” section on page 27. Note The input voltage tolerance limits for AC power are 85 and 264 VAC. Warning AC connected units must have a permanent ground connection in addition to the power cable ground wire. NEBS-compliant grounding satisfies this requirement.
Power Connections The following warning applies to the Cisco 3825 router only: Warning This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 60 VDC, 20 A. Statement 1005 The following warning applies to the Cisco 3845 router only: Warning This product relies on the building’s installation for short-circuit (overcurrent) protection.
Power Connections DC Input Wiring Procedure To connect the router to a DC power source, follow these steps: Step 1 Warning Tip Remove power from the DC circuit. To ensure that power is removed from the DC circuit, locate the circuit breaker for the DC circuit, switch the circuit breaker to the OFF position, and tape the circuit-breaker switch in the OFF position. Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Power Connections DC Power Connections for Cisco 3825 Routers -DC, input A Return, input A Safety ground Return, input B -DC, input B Return, input A +DC, input A Safety ground +DC, input B Return, input B A + + A + B Negative DC input Figure 13 Positive DC input DC Power Connections for Cisco 3845 Routers Negative DC input 24-60 Step 6 Warning + B 111752 Terminal block Terminal block Positive DC input 19-8 A 24-60 19-8 A 117981 Figure 12 Safety ground Safety ground Negative pola
Power Connections Figure 14 COMPACT DC Wire Routing and Attachment for Cisco 3825 Router 1 FLASH 0 ACT SYS PWR RPS AUX PWR AIM0 AIM1 PVDM0 PVDM1 PVDM2 PVDM3 117120 SYS Plastic covers Figure 15 Cable tie DC Wire Routing and Attachment for Cisco 3845 Router SYS ACT SYS AUX SYS PWR1 PW R1 PWR2 AUX PWR2 117046 Plastic cover Cable tie Dual DC Power Supply Configuration in Cisco 3825 Routers You can connect a single DC power source to either the A input or the B input.
Power Connections Caution Dual sources with opposite-polarity grounding damage equipment. In Figure 16, either the positive source terminal or the negative source terminal is tied to ground. Connecting to One Source Only—Source A or Source B A- + A- + A+ A+ B+ B+ B- B- 127037 Figure 16 In Figure 17, source A and source B share common negative terminal connections.
Power Connections Note When source A and source B are wired with common negative terminals, as in Figure 17, discharging does not occur and there is no requirement that source A and source B voltages be equal. Figure 18 Connecting Source A and Source B with Common Positive Terminals Va voltage = Vb voltage (greater than 0.25 V) Va voltage = Vb voltage (within 0.
Power Connections Figure 19 Source A and Source B Wired with Opposite-Polarity Grounds A- + Va A+ + B+ B- 127041 Vb Connecting Routers to Backup Power The Cisco 3845 router accommodates two hot-swappable power supplies in bays at the front of the router. A single power supply meets router requirements. The second power supply provides redundancy, load sharing, and increased router availability. Either power supply can be removed without affecting router operation.
Connecting WAN, LAN, and Voice Cables Figure 20 RPS Connector on Cisco 3825 Router R FLASH 1 0 SYS AUX ACT RPS IP PWR AIM0 AIM1 121273 COMPACT PVDM0 PVDM1 PVDM2 PVDM3 RPS connector Figure 21 Connecting RPS to Cisco 3825 Router R FLASH 1 0 SYS ACT SYS PWR RPS AUX PWR AIM0 AIM1 PVDM0 PVDM1 PVDM2 PVDM3 121292 COMPACT Connecting WAN, LAN, and Voice Cables This section describes how to connect WAN, LAN, and voice interface cables to your Cisco 3800 series integrated services ro
Connecting a Console or Modem For cable pinouts, see the Cisco Modular Access Router Cable Specifications document. Warning Do not work on the system, or connect or disconnect cables during periods of lightning activity. Statement 1001 Warning The ISDN connection is regarded as a source of voltage that should be inaccessible to user contact. Do not attempt to tamper with or open any public telephone operator (PTO)-provided equipment or connection hardware.
Connecting a Console or Modem This section describes how to connect a console to the console port and how to connect a modem to the auxiliary port. Connecting a Console to the Console Port To connect a console (ASCII terminal or a PC running HyperTerminal or similar terminal emulation software) to the console port on the router, follow these steps: Step 1 Use the blue RJ-45-to-DB-9 console adapter cable to connect the router to a terminal. (See Figure 22 and Figure 23.
Connecting a Console or Modem Figure 23 Connecting a Computer to the Cisco 3845 Router Console Port 117777 Console port connector (RJ-45) Laptop computer Connecting a Modem to the Auxiliary Port To connect a modem to the auxiliary port on the router, follow these steps: Step 1 Use the black RJ-45-to-DB-25 modem adapter cable to connect the router to a modem. (See Figure 24 and Figure 25.
Connecting a Console or Modem Figure 24 NMDESW36 Connecting a Modem to the Auxiliary Port on a Cisco 3825 Router 35x GE1 FastEthe rnet Ports 10/100/100 Base-Tx 0 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x 29x 11x 18x 28x 10x 27x 9x 26x 8x Ext Pwr 25x 17 24x -48V 6x 23x 5x 22x 4x 21x 3x 20x 2x 19x 0x 1x 18x GE0 10/100/ 1000 Base-Tx EN 0x 117778 35x 17x AUX port connector (RJ-45) Modem Figure 25 Connecting a Modem to the Auxiliary Port on a Cisco 3845 Router 117779
Powering Up Cisco 3800 Series Routers This document describes how to power up your Cisco 3800 series integrated services router. Caution Warning To ensure adequate cooling, electromagnetic interference (EMI) reduction, and safety, never operate the router unless the cover and all modules and cover plates are installed. The plug-socket combination must be accessible at all times because it serves as the main disconnecting device.
Power-Up Procedure Power-Up Procedure To power up your router and verify that it has gone through its initialization and self-test, follow these steps. After you are finished, the router is ready for software configuration. Note To view the boot sequence, you must have a console connection to the router before it powers up. Step 1 Make sure that your PC is powered up and connected as described in the “Prerequisites” section on page 33. Step 2 Turn the router power switch on.
Power-Up Procedure Table 4 LED Indications During Power-up LED Label Color and State Meaning SYS Off Router not receiving power Steady green Normal operation (power-up complete) Blinking green Booting or in ROM monitor mode (immediately after power-up) Amber Powered but malfunctioning Off Router not receiving power Steady green Normal operation (immediately after power-up) SYS PWR (Cisco 3825) SYS PWR1 Off or SYS PWR2 (Cisco 3845) Steady green Router not receiving power, power supply no
Power-Up Procedure Verifying the Hardware Configuration To display and verify hardware features, enter the following commands: • show version—Displays the system hardware version; the installed software version; the names and sources of configuration files; the boot images; and the amount of installed DRAM, NVRAM, and flash memory.
Troubleshooting Cisco 3800 Series Routers Your Cisco 3800 series integrated services router goes through extensive testing and burn-in before leaving the factory. If you encounter problems, use this document to help isolate problems or to eliminate the router as the source of the problem.
Solving Problems Solving Problems The key to solving problems is to isolate the problem to a specific subsystem by comparing what the router is doing to what it should be doing. The LEDs on the front and rear panel of the router enable you to determine router performance and operation. LEDs are described in the “LEDs” section on page 41.
Solving Problems • With the power switch on and the SYS LED steady green, do the fans operate? – If yes, the power system is functioning. – If no, check the fans. • With the power switch on and the SYS PWR LED (Cisco 3825) or SYS PWR1 or SYS PWR2 LED (Cisco 3845) off, do the fans operate? – If yes, the router is receiving power. The fans are connected directly to the DC outputs of the power supply. – If no, check the power source and power cable.
Solving Problems Troubleshooting Modules, Cables, and Connections Network problems can be caused by a module; cables or cable connections; or external devices such as a modem, transceiver, hub, wall jack, WAN interface, or terminal. Check for the following symptoms to help isolate the problem: • Network module or interface card is not recognized by the router. – Make sure that the module or interface card is firmly seated in its slot. – Check the LEDs on the module or interface card.
LEDs Router powers on and boots only when a particular cable is disconnected. • – There may be a problem with the module, interface card, or cable. For information about customer service, see the “Obtaining Technical Assistance” section on page 12 of “Introduction to Cisco 3800 Series Routers Hardware Documentation.” For warranty information, see the “Cisco 90-Day Limited Hardware Warranty Terms” section on page 10 of “Introduction to Cisco 3800 Series Routers Hardware Documentation.
LEDs Figure 27 Cisco 3825 Rear-Panel LEDs CONSOLE SPD GE 1/0 LNK AUX NMDESW36 SPD GE 0/0 LNK GE 0/0 SFP 35x GE1 FastEthe rnet Ports 10/100/100 0 Base-Tx 17x NMESW16 35x 17x 34x 16x 33x 15x 15x 32x 14x 31x 13x FastEthern et Ports 30x 12x 29x 11x 18x 28x 10x 27x 9x 8x 7x 26x 8x Ext Pwr 25x 17 24x Ext Pwr 14x 6x 13x 5x 12x 4x 11x 3x 10x 2x 9x 0x 1x 8x GE 10/100/ 1000 Base-Tx -48V 6x 23x 5x 22x 4x 21x 3x 20x 2x 19x 0x 1x 18x GE0 10/100/ 1000 Base-Tx EN 0x
LEDs Figure 29 Cisco 3845 Router Rear-Panel LEDs GigE 0/1 SPD LNK SPD LNK PVDM 3 PVDM 2 PVDM 1 PVDM 0 AIM 1 AIM 0 CF SFP GigE 0/0 CONSOLE AUX PVDM 3 CF SPD PVDM 2 PVDM 1 GigE 0/1 LNK PVDM 0 AIM 1 AIM 0 SPD LNK SFP 117783 GigE 0/0 Table 5 Cisco 3800 Series LED Indicators LED 3825 3845 Color and State Meaning SYS Front Front Off Router not receiving power Steady green Normal operation (power-up complete) Blinking green Booting or in ROM monitor mode (immediately after power-u
LEDs Table 5 Cisco 3800 Series LED Indicators (continued) LED 3825 3845 Color and State Meaning AUX PWR Front — Off IP phone power off or not present, or power-up not completed Steady green Present and enabled (power-up completed) Amber Powered but malfunctioning Off IP phone power supply 1 off or not present, or power-up not completed Steady green Present and enabled (power-up completed) Amber Powered but malfunctioning Off IP phone power supply 2 off or not present, or power-up not
The show environment Command Table 5 Cisco 3800 Series LED Indicators (continued) LED 3825 3845 Color and State Meaning GE0: Speed Rear Rear Blinking green Blink frequency indicates port speed 1 blink per second: 10 Mbps 2 blinks per second: 100 Mbps 3 blinks per second: 1000 Mbps GE1: Link Rear Rear Off No link Green Ethernet cable present, link established GE1: Speed Rear Rear Blinking green Blink frequency indicates port speed 1 blink per second: 10 Mbps 2 blinks per second: 100 Mbps
Error Messages This is an example of the output of the show environment command for a Cisco 3845 router that has one AC power supply with IP phone power output installed: Router# show environment SYS PS1 is present Fan status: Normal Input Voltage status: Normal DC Output Voltage status: Normal Type: AC Thermal status: Normal SYS PS2 is absent AUX (-48V) PS1 is present AUX (-48V) PS2 is absent Fan 1 Normal Fan 2 Normal Fan 3 Normal Fan Speed is Normal Alert settings: Intake temperature warning: Enabled, Th
Error Messages Error Message Fan 1|2|3 had a rotation error reported. Explanation The specified fan is not rotating at the desired speed. Recommended Action If this error is detected, the router system software automatically increases the fan speed to high. If the rotation error disappears, fan speed is kept at high. If this error appears repeatedly, there is something wrong with the fan. The error will reappear until action is taken.
Jumper Settings Error Message System detected thermal warning on SYS PS 1|2. System is close to auto shutdown limit. Explanation The power supply is operating at an abnormally high temperature. Recommended Action Make sure that the ambient room temperature does not exceed 40 degrees C and that air flow to the router is not blocked. See the “Site Environment” section on page 4 and the “Equipment Racks” section on page 5 of “Preinstallation Requirements and Planning for Cisco 3800 Series Routers.
Recovering a Lost Password Note The jumpers are not needed to troubleshoot Cisco IOS problems. If the Cisco IOS software becomes corrupted, remove the CompactFlash memory card to force the router to boot in ROM monitor mode. Change these settings only after consulting with your service representative or Cisco technical support. Recovering a Lost Password You can recover a lost enable password, but an enable secret password is encrypted and is not recoverable.
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Installing Network Modules in Cisco 3800 Series Routers This document describes how to install network modules in Cisco 3800 series routers.
Installing Network Modules The upper network module slot of the Cisco 3825 router, labeled 2 on the rear panel, can hold any of the following sizes of network modules: • One single-wide network module • One extended single-wide network module • One double-wide network module • One extended double-wide network module The Cisco 3845 router provides four slots for network modules, labeled 1, 2, 3, and 4 on the rear panel.
Modifying the Width of Network Module Slots Slot Divider for Double-Wide Network Module Slots (Generic Router) 121387 Figure 30 All network module slots must be covered by network module faceplates, blank faceplates, or slot adapters for cooling, electromagnetic interference (EMI) reduction, and safety. The network module hardware kit for Cisco 3800 series routers contains four blank faceplates. Each blank faceplate covers one standard single-wide network module slot.
Modifying the Width of Network Module Slots To cover an empty network module slot: • Extended single-wide slot—Install a slot adapter as described in the “Installing and Removing Slot Adapters” section on page 59. Then attach a blank faceplate and tighten the two screws. • Extended double-wide slot—Install a slot divider as described in the “Installing and Removing Slot Dividers” section on page 55 .
Installing and Removing Slot Dividers Slot Adapters for Double-Wide Network Modules (Generic Router) 121388 Figure 32 1 1 Slot adapter 2 2 Second slot adapter Installing and Removing Slot Dividers On the Cisco 3845 router, you can remove a slot divider to combine two extended single-wide network module slots into an extended double-wide slot, or install a slot divider to divide an extended double-wide slot into two extended single-wide slots.
Installing and Removing Slot Dividers Installing Slot Dividers Figure 33 shows a slot divider for a double-wide or extended double-wide network module slot. Slot Divider for Network Module Slot 121384 Figure 33 To install slot dividers in network module slots, follow these steps. You need a number 1 Phillips screwdriver. Step 1 Insert the top rails of the slot divider between the guide rails in the top of the network module slot. See Figure 34. Note Figure 34 shows a generic router.
Installing and Removing Slot Dividers Figure 34 Inserting Slot Divider into Network Module Slot (Generic Router) 121385 1 2 1 Insert slot divider 2 Tighten screw so front surface is flush with router rear panel Step 2 Push the slot divider into the slot. The slot divider’s screw tip and guide pin fit into holes at the back of the slot. Use the number 1 Phillips screwdriver to tighten the attachment screw.
Installing and Removing Slot Dividers Removing Slot Dividers Note The network module slots on both sides of a slot divider must be empty of network modules and slot adapters before you remove the slot divider. To remove slot dividers from network module slots, follow these steps: Step 1 Using a number 1 Phillips screwdriver, loosen the slot divider attachment screw. Step 2 Pull the slot divider straight out of the network module slot. Tip Save the slot divider for future use.
Installing and Removing Slot Adapters Installing and Removing Slot Adapters Install slot adapters in extended-width network module slots to reduce the slot width. Figure 31, Figure 32, and Figure 35 show slot adapters for network module slots. Slot Adapter for Network Module Slot 121063 Figure 35 Installing Slot Adapters Note A network module slot must be empty before you install a slot adapter. To install a slot adapter, follow these steps. You need a number 2 Phillips screwdriver.
Installing Blank Faceplates Removing Slot Adapters To remove a slot adapter, use a number 2 Phillips screwdriver to loosen the captive thumbscrew. Pull the slot adapter straight out of the slot. Tip Save the slot adapter for future use. Installing Blank Faceplates All network module slots must be covered by network module faceplates, blank faceplates, or slot adapters for cooling, electromagnetic interference (EMI) reduction, and safety.
Installing Interface Cards in Cisco 3800 Series Routers This document describes how to install interface cards in Cisco 3800 series integrated services routers. It contains the following sections: • Installing Interface Cards, page 61 • Installing and Removing Slot Dividers, page 62 • Installing Blank Faceplates over Empty HWIC Slots, page 67 Installing Interface Cards Interface cards install either into slots in the rear of the router, or into slots in network modules.
Installing and Removing Slot Dividers Caution Cisco 3800 series routers do not support online insertion and removal (OIR, or hot swap) of interface cards inserted directly into router slots. You must turn off the router before installing or removing an interface card. The Cisco Interface Cards Installation Guide describes how to install interface cards in router slots and network modules.
Installing and Removing Slot Dividers Figure 38 Slot Divider for Cisco 3845 HWIC Slot 1 121560 2 1 Rear view 2 Front view To install slot dividers into HWIC slots, follow these steps: Step 1 For a Cisco 3825 router, squeeze the prongs of the metal slot divider together and insert the ends between the guide rails on the bottom of the HWIC slot. Push the slot divider in until it locks into place. See Figure 39. Note The guide rails begin approximately 2.5 inch (6 cm) from the router’s rear panel.
Installing and Removing Slot Dividers Figure 39 Inserting Slot Divider into HWIC Slot (Cisco 3825 Router) NMD ESW36 GE1 35x 10/1 Base00/100 -Tx 0 17x 35x 17x 34x 16x 33x 15x Fast Ether net 32x 14x 31x 13x Por ts 30x 12x 29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 18x 6x 23x 5x 22x 4x -48V 21x 3x 20x 2x 19x 1x 0x 0x EN 121382 18x Ext Pwr GE0 10/1 100000/ Base -Tx For a Cisco 3845 router, insert the plastic rail on the bottom of the slot divider into the track in the router slot.
Installing and Removing Slot Dividers Figure 40 Inserting Slot Divider into HWIC Slot (Cisco 3845 Router) 4 NM ES 16 W- 15 x 3 Fa stE the rne tP ort s 7x 15 x 7x 14 x 6x 13 x 5x 12 x 2 4x 8x 11 x 3x 10 x 2x -48 V 9x 1x Ext Pw r G 10 E 10/100 Ba00 / se -Tx 0x 8x 121581 1 0x EN 1 Slot divider 3 Screw hole 2 Screw tab 4 Track Installing Interface Cards in Cisco 3800 Series Routers OL-5974-01 65
Installing and Removing Slot Dividers Figure 41 2 121201 1 Inserting Slot Divider into HWIC Slot (Cisco 3845 Router), Detail Step 2 Pull gently on the slot divider to check that it is seated securely. Removing Slot Dividers from HWIC Slots Note The HWIC slots on both sides of a slot divider must be empty before you remove the slot divider.
Installing Blank Faceplates over Empty HWIC Slots Tip Save the slot divider for future use. Installing Blank Faceplates over Empty HWIC Slots All interface card slots must be covered by interface cards or blank faceplates for cooling, electromagnetic interference (EMI) reduction, and safety.
Installing Blank Faceplates over Empty HWIC Slots To install blank faceplates over empty HWIC slots, follow these procedures: Tip • Single-wide slot—Attach a blank faceplate and tighten the two screws, using a number 1 Phillips screwdriver. • Double-wide slot—Install a slot divider as described in the “Installing and Removing Slot Dividers” section on page 62. Then install two blank faceplates and tighten the two screws in each blank faceplate. Save blank faceplates for future use.
Installing SFP Modules in Cisco 3800 Series Routers This document describes how to install optional small-form-factor pluggable (SFP) modules in Cisco 3800 series integrated services routers to provide optical Gigabit Ethernet connectivity. It contains the following sections: • Installing SFP Modules, page 70 • Removing SFP Modules, page 71 The SFP module installs into a slot on the router’s rear panel. When selected in Cisco IOS software, it is assigned port gigabitethernet 0/0.
Installing SFP Modules Note Cisco 3800 series routers do not support 1000Base-T SFP modules in the router’s SFP slot. 1000Base-T connectivity is provided by the Gigabit Ethernet ports built into the router. Laser Safety Guidelines Optical SFPs use a small laser to generate the fiber-optic signal. Keep the optical transmit and receive ports covered whenever a cable is not connected to the port.
Removing SFP Modules Removing SFP Modules Follow these steps to remove an SFP from a Cisco 3800 series router: Step 1 Warning Caution Step 2 Note Disconnect all cables from the SFP. Because invisible laser radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to laser radiation and do not stare into open apertures. The latching mechanism used on many SFPs locks the SFP into place when cables are connected.
Removing SFP Modules Installing SFP Modules in Cisco 3800 Series Routers 72 OL-5968-01
Installing CompactFlash Memory Cards in Cisco 3800 Series Routers This document describes how to remove and install CompactFlash memory cards in Cisco 3800 series integrated services routers. It contains the following sections: • Preventing Electrostatic Discharge Damage, page 73 • Removing CompactFlash Memory Cards, page 74 • Installing CompactFlash Memory Cards, page 75 Preventing Electrostatic Discharge Damage CompactFlash memory cards are sensitive to electrostatic discharge (ESD) damage.
Removing CompactFlash Memory Cards Removing CompactFlash Memory Cards Caution Disconnect the router from the network before removing a CompactFlash memory card. To remove a CompactFlash memory card from the router, follow these steps (see Figure 46 and Figure 47): Step 1 Turn off power to the router to ensure that it does not attempt to read from or write to the CompactFlash memory card. Step 2 Press the ejector button next to the CompactFlash card.
Installing CompactFlash Memory Cards Figure 47 CompactFlash Slot Location in Cisco 3845 Router COMPACT FLASH CF Do Not Remove During Network Operation Compact Flash slot 117785 Ejector button Installing CompactFlash Memory Cards To install a CompactFlash memory card, follow these steps (see Figure 46 and Figure 47): Step 1 Make sure that the ejector button is fully seated so that it does not project from the panel. Note Step 2 Insert the CompactFlash card into the slot until it is fully seated.
Installing CompactFlash Memory Cards Using the Compact Flash Guard The Compact Flash guard (CF-guard) provides protection for the compact flash memory slot. Note A small flat-head screwdriver is required to attach the CF-guard. To install the CF-guard, follow these steps: Unpack the CF-guard. Step 2 Slip the CF-guard flap into the notch in the CompactFlash memory slot. Step 3 Screw the CF-guard into the screw hole.
Installing and Upgrading Internal Components in Cisco 3800 Series Routers This document describes how to install or upgrade components located inside Cisco 3800 series integrated services routers: • SDRAM DIMM memory modules • Advanced integration modules (AIMs) • Packet voice data modules (PVDMs) • Power supplies • Motherboard (Cisco 3845 router only) • Fan tray (Cisco 3845 router only) For information about router SDRAM, AIM, PVDM, and power supply capacity, see the following sections of the “
Safety Warnings • Safety with Electricity, page 79 • Removing the Cover from a Cisco 3825 Router, page 80 • Removing the Power Supply Assembly from a Cisco 3825 Router, page 81 • Removing the Plug-In Motherboard from a Cisco 3845 Router, page 82 • Component Locations on the Motherboard, page 83 • SDRAM DIMM Removal and Installation, page 85 • AIM Installation and Removal, page 88 • PVDM Installation and Removal, page 96 • Installing a Power Supply in a Cisco 3825 Router, page 98 • Reinst
Safety with Electricity Warning Read the installation instructions before connecting the system to the power source. Statement 1004 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.
Removing the Cover from a Cisco 3825 Router Preventing Electrostatic Discharge Damage Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD can occur when 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 router is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact.
Removing the Power Supply Assembly from a Cisco 3825 Router Step 3 Remove the router from the rack. Remove the rack-mounting brackets from the router using the number 2 Phillips screwdriver. Step 4 Place the router on a flat surface. Remove the three screws from the top of the router and set them aside in a safe place. Step 5 Remove the three screws on each side panel and set them aside in a safe place. Step 6 Slide the cover toward the front of the chassis (about 1 inch [25 mm]). See Figure 48.
Removing the Plug-In Motherboard from a Cisco 3845 Router Step 1 Remove the router cover, following the procedure in the “Removing the Cover from a Cisco 3825 Router” section on page 80. Step 2 Locate the power supply assembly, shown in Figure 49. Remove any internal power cables from the connectors at the corner of the power supply.
Component Locations on the Motherboard Figure 50 1 2 1 Loosen captive thumbscrews 117938 2 Removing the Motherboard from a Cisco 3845 Router 1 2 Rotate ejector levers outward To install or replace SDRAM DIMMs, AIMs, or PVDMs on the motherboard, continue with the “Component Locations on the Motherboard” section on page 83. Component Locations on the Motherboard Figure 51 and Figure 52 show the locations of SDRAM DIMMs, AIMs, and PVDMs on the motherboard of Cisco 3825 and Cisco 3845 routers.
Component Locations on the Motherboard Figure 51 Component Locations on a Cisco 3825 Motherboard 11 12 4 3 7 2 1 5 6 8 10 127790 9 1 PVDM3 7 MEMORY 1 2 PVDM2 8 MEMORY 0 3 PVDM1 9 IP phone power connector 4 PVDM0 10 Jumper headers 5 AIM0 11 Primary power connector 6 AIM1 12 Secondary power connector Installing and Upgrading Internal Components in Cisco 3800 Series Routers 84 OL-5975-04
SDRAM DIMM Removal and Installation Figure 52 Component Locations on a Cisco 3845 Motherboard 4 3 7 2 8 1 10 5 9 117937 6 1 PVDM3 6 AIM1 2 PVDM2 7 MEM0 3 PVDM1 8 MEM1 4 PVDM0 9 Jumper headers 5 AIM0 10 Power connector for fan tray assembly SDRAM DIMM Removal and Installation Cisco 3800 series routers ship with 256 MB of ECC DDR SDRAM. The two DIMM slots can be upgraded with 128-MB, 256-MB, or 512-MB DIMMs to a maximum of 1024 MB.
SDRAM DIMM Removal and Installation DIMM Location and Orientation The two SDRAM DIMM connectors are located on the motherboard and are identified as MEMORY 0 and MEMORY 1 on the Cisco 3825 router, and as MEM0 and MEM1 on the Cisco 3845 router. See Figure 51 and Figure 52 for DIMM locations. DRAM DIMMs have a polarization notch on the mating edge to prevent incorrect insertion. Figure 53 shows the polarization notch on a DRAM DIMM.
SDRAM DIMM Removal and Installation Step 2 Place the DIMM in an antistatic bag to protect it from ESD damage. Installing an SDRAM DIMM Caution Do not insert DIMMs into the same connector more than 25 times. Overuse can damage the connector. To install an SDRAM DIMM, follow these steps: Step 1 Make sure that both latches on the DIMM connector are open. Step 2 Orient the DIMM so that the polarization notch lines up with the key in the connector. See Figure 55.
AIM Installation and Removal AIM Installation and Removal Overview Advanced integration modules (AIMs) provide hardware-based support for additional features. AIMs plug into a connector on the motherboard and require no external interfaces or connections. Each AIM sold as a spare is supplied with a label that identifies its type. Cisco 3800 series routers have two AIM connectors, labeled AIM0 and AIM1. See Figure 51 and Figure 52 for AIM connector locations.
AIM Installation and Removal Connecting the AIM to the Motherboard To connect an AIM to the motherboard, follow these steps: Step 1 Remove the three screws from the motherboard near the AIM connector that you are going to use. Figure 56 shows a typical installation.
AIM Installation and Removal Metal Standoffs 121202 Figure 57 Step 3 Install the two machine-thread metal standoffs in place of the two screws labeled A in Figure 56. Use a 1/4-inch nut driver to tighten the standoffs. See Figure 58. Caution Make sure that the standoffs are straight when installed. Tighten them gently but firmly. The shoulder must be seated tight against the motherboard.
AIM Installation and Removal Figure 58 Attaching an AIM to a Motherboard AIM Metal standoffs 58695 Snap-in plastic standoff Step 4 Insert the plastic standoff (see Figure 59) with a snap fit on the ends in place of the screw labeled B in Figure 56. Press the standoff firmly to be sure that the shoulder is seated tight against the motherboard. Note The plastic standoff snaps into the motherboard. The locking end is the shorter end of the standoff.
AIM Installation and Removal Figure 59 Plastic Standoff Orientation Locking end 82620 AIM end Step 5 Insert the connector on the AIM into the connector on the motherboard. Press firmly on the AIM until it seats onto the connector. The plastic standoff must snap into the hole in the AIM board. See Figure 60. Step 6 Insert the machine-thread metal screws from the accessory kit through the AIM into the metal standoffs. See Figure 60. Carefully tighten the screws with a number 1 Phillips screwdriver.
AIM Installation and Removal Verifying AIM Installation Use the show diag 0 command to obtain hardware information about an installed AIM. The following example shows the hardware revision and additional information about ATM AIM 0: Router# show diag 0 . . . ATM AIM 0: Applying the AIM Label The AIM is supplied with a two-part adhesive label in the mounting kit or attached to the AIM card.
AIM Installation and Removal Removing an AIM If you need to remove an AIM, follow this procedure. You need a number 2 Phillips screwdriver. Step 1 Locate the AIM to be removed. Step 2 Use a number 2 Phillips screwdriver to remove the two screws from the AIM as shown in Figure 61. Removing Screws from an AIM 103526 Figure 61 Step 3 Carefully lift the AIM from the connector and the plastic standoff. Keep the AIM parallel with the motherboard to prevent damage to the connector and plastic standoff.
AIM Installation and Removal Installing a CompactFlash Memory Card on the AIM Complete the procedure below for installing a CompactFlash memory card mounted on the AIM. Note Not all AIMs require installation of a CompactFlash memory card. Step 1 Locate the CompactFlash memory card on the AIM. (See Figure 62.) Step 2 Insert the connector end of the CompactFlash memory card into the connector until the card is seated in the connector. (See Figure 62 and Figure 63.
PVDM Installation and Removal CompactFlash Memory Card Installation on the AIM 120376 Figure 63 PVDM Installation and Removal Cisco 3800 series routers hold up to four Cisco packet voice data modules, version II (PVDM-II), to support enhanced versions of digital signal processors (DSPs). Caution When you remove or install PVDMs, always wear an ESD-preventive wrist strap, and ensure that it makes good contact with your skin. Connect the equipment end of the wrist strap to the metal part of the router.
PVDM Installation and Removal PVDM Polarization Notch 103363 Figure 64 Polarization notch Alignment holes Installing a PVDM To install a PVDM, follow these steps: Note Install PVDMs beginning with the PVDM 0 connector. Step 1 Locate the PVDM connector on the motherboard. See Figure 51 and Figure 52 for PVDM connector locations. Step 2 Orient the PVDM so that the polarization notch lines up with the key on the connector. See Figure 64.
Installing a Power Supply in a Cisco 3825 Router Removing a PVDM To remove a PVDM from the motherboard, follow these steps: Step 1 Pull the PVDM retaining clips away from the PVDM at both ends, and then tilt the PVDM until it can be removed from the connector. See Figure 66. Figure 66 Removing a PVDM 1 2 1 Step 2 103468 1 Release clips 2 Tilt the PVDM Place the PVDM in an antistatic bag to protect it from ESD damage.
Installing a Power Supply in a Cisco 3825 Router Removing the Existing Power Supply To remove the existing power supply from a Cisco 3825 router, follow these steps: Step 1 Remove the router cover, following the procedure in the “Removing the Cover from a Cisco 3825 Router” section on page 80. Step 2 Remove the power supply and tray assembly, following the procedure in the “Removing the Power Supply Assembly from a Cisco 3825 Router” section on page 81.
Installing a Power Supply in a Cisco 3825 Router Follow these steps to attach the power supply to the power supply tray. Step 1 Turn the tray right side up. Align the new power supply with the front wall of the tray. Step 2 Replace and tighten the screws that hold the power supply to the tray. Verify that the primary power cable is connected to the motherboard as shown in Figure 69.
Installing a Power Supply in a Cisco 3825 Router Installing a DC Power Supply The DC power supply has two power connectors, as shown in Figure 70. Figure 70 DC Power Supply 2 1 Primary power connector 2 127781 1 Secondary power connector Follow these steps to attach the power supply to the power supply tray. Step 1 Turn the tray right side up. Align the new power supply with the front wall of the tray. Step 2 Replace and tighten the screws that hold the power supply to the tray.
Installing a Power Supply in a Cisco 3825 Router Figure 71 Secondary Power Cable Motherboard Connection 130637 1 1 Secondary power cable If you are finished installing components inside the router, continue with the “Reinstalling the Power Supply Assembly in a Cisco 3825 Router” procedure on page 105. To install an SDRAM DIMM, continue with the “SDRAM DIMM Removal and Installation” procedure on page 85. To install an AIM, continue with the “AIM Installation and Removal” procedure on page 88.
Installing a Power Supply in a Cisco 3825 Router Installing an IP Phone Power Supply The IP phone power supply has three connectors, as shown in Figure 72. Figure 72 AC Power Supply With IP Phone Power Support 3 2 1 Primary power connector 3 2 Secondary power connector 127782 1 IP phone power connector Follow these steps to attach the power supply to the power supply tray. Step 1 Turn the tray right side up. Align the new power supply with the front wall of the tray.
Installing a Power Supply in a Cisco 3825 Router Figure 73 IP Phone Power Cable Motherboard Connection 2 2 2 117947 1 1 IP phone power cable 2 Cable brackets If you are finished installing components inside the router, continue with the “Reinstalling the Power Supply Assembly in a Cisco 3825 Router” procedure on page 105. To install an SDRAM DIMM, continue with the “SDRAM DIMM Removal and Installation” procedure on page 85.
Reinstalling the Power Supply Assembly in a Cisco 3825 Router Reinstalling the Power Supply Assembly in a Cisco 3825 Router To reinstall the power supply assembly after removing it for any of the procedures in this document, follow these steps: Step 1 Place the power supply assembly into the router, as shown in Figure 49, being careful not to pinch any cables. Step 2 Using a number 2 Phillips screwdriver, fasten the captive screws on the power supply assembly to the router chassis.
Removing and Installing the Fan Tray and Power Supplies in a Cisco 3845 Router Step 3 Use a number 2 Phillips screwdriver to tighten the two captive retention screws, one on each side of the motherboard. Removing and Installing the Fan Tray and Power Supplies in a Cisco 3845 Router The Cisco 3845 router accommodates two hot-swappable power supplies in bays at the front of the router. A single power supply meets router requirements.
Removing and Installing the Fan Tray and Power Supplies in a Cisco 3845 Router Step 2 To remove a power supply, use a flat-blade or number 2 Phillips screwdriver to loosen the two captive thumbscrews. Holding the thumbscrews, rotate the ejector levers on each side of the power supply outward. Fold the handle up, and pull the power supply out by the handle. See Figure 75. An AC power supply is shown as an example.
Removing and Installing the Fan Tray and Power Supplies in a Cisco 3845 Router Installing and Upgrading Internal Components in Cisco 3800 Series Routers 108 OL-5975-04
