Cisco 3800 Series Page 132 Quick Start Manual Download

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102

Installing and Upgrading Internal Components in Cisco 3800 Series Routers

OL-5975-04

Installing a Power Supply in a Cisco 3825 Router

Figure 71

Secondary Power Cable Motherboard Connection

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

To install a PVDM, continue with the

“PVDM Installation and Removal” procedure on page 96

Secondary power cable

130637

Summary of Contents for 3800 Series

Page 1: ...ge 11 Documentation Feedback page 12 Obtaining Technical Assistance page 12 Obtaining Additional Publications and Information page 13 Objectives and Organization This series of documents provides comprehensive hardware information for Cisco 3800 series integrated services routers It includes the following modules Overview of Cisco 3800 Series Routers Preinstallation Requirements and Planning for C...

Page 2: ...iguring and maintaining the router who should be familiar with electronic circuitry and wiring practices and have experience as an electronic or electromechanical technician Certain identified procedures should be performed only by trained and qualified personnel Conventions These documents use the conventions listed in Table 1 Note Means reader take note Notes contain helpful suggestions or refer...

Page 3: ...eventing 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 Waarschuwing BELANGRIJKE VEILIGHEIDSINSTRUCTIES Dit waarschuwingssymbool betekent gevaar U verkeert in een situatie die lichamelijk letsel kan veroorzaken Voordat u aan enige apparatuur gaat w...

Page 4: ...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 avver...

Page 5: ...úmero que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña a este dispositivo GUARDE ESTAS INSTRUCCIONES Varning 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 förfarande...

Page 6: ...fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham o dispositivo GUARDE ESTAS INSTRUÇÕES Advarsel VIGTIGE SIKKERHEDSANVISNINGER Dette advarselssymbol betyder fare Du befinder dig i en situation med risiko for legemesbeskadigelse Før du begynder arbejde på udstyr skal du være opmærksom på de involverede risici der er ved elektriske kredslø...

Page 7: ...Safety Warnings 7 Introduction to Hardware Documentation OL 5965 01 ...

Page 8: ...Safety Warnings 8 Introduction to Hardware Documentation OL 5965 01 ...

Page 9: ...ty You can also contact the Cisco service and support website for assistance http www cisco com en US support Table 2 Related and Referenced Documents Cisco Product Document Cisco 3800 series routers Cisco 3800 Series Integrated Services Routers Quick Start Guide Cisco 3800 Series Software Configuration Cisco 3800 Series Cards and Modules Cisco 2800 Series and Cisco 3800 Series Integrated Services...

Page 10: ... d Read the document online or click the PDF icon to download and print the document in Adobe Portable Document Format PDF Note You must have Adobe Acrobat Reader to view and print PDF files You can download the reader from Adobe s website http www adobe com 3 To read translated and localized warranty information about your product follow these steps a Enter this part number in the Warranty Docume...

Page 11: ... univercd home home htm You can access the Cisco website at this URL http www cisco com You can access international Cisco websites at this URL http www cisco com public countries_languages shtml Ordering Documentation You can find instructions for ordering documentation at this URL http www cisco com univercd cc td doc es_inpck pdi htm You can order Cisco documentation in these ways Registered Ci...

Page 12: ...chnologies The website is available 24 hours a day 365 days a year at this URL http www cisco com techsupport Access to all tools on the Cisco Technical Support Website requires a Cisco com user ID and password If you have a valid service contract but do not have a user ID or password you can register at this URL http tools cisco com RPF register register do Submitting a Service Request Using the ...

Page 13: ...stance with Cisco product capabilities installation or configuration There is little or no effect on your business operations Obtaining Additional Publications and Information Information about Cisco products technologies and network solutions is available from various online and printed sources Cisco Marketplace provides a variety of Cisco books reference guides and logo merchandise Visit Cisco M...

Page 14: ...Copyright 2004 Cisco Systems Inc All rights reserved CCVP the Cisco Logo and the Cisco Square Bridge logo are trademarks of Cisco Systems Inc Changing the Way We Work Live Play and Learn is a service mark of Cisco Systems Inc and Access Registrar Aironet BPX Catalyst CCDA CCDP CCIE CCIP CCNA CCNP CCSP Cisco the Cisco Certified Internetwork Expert logo Cisco IOS Cisco Press Cisco Systems Cisco Syst...

Page 15: ...ce installations that need integrated low density switching security voice IP telephony video content networking and concurrent applications This document describes the features and specifications of Cisco 3800 series routers and includes the following sections Router Descriptions page 1 Product Identification page 5 Built In Ports page 6 Module and Interface Card Capacity page 7 Port Numbering pa...

Page 16: ... PWR AIM0 AIM1 PVDM0 PVDM1 PVDM2 PVDM3 R 116841 100 240 V 3A 50 60 Hz 1 0 SYS ACT SYS PWR RPS AUX PWR AIM0 AIM1 PVDM0 PVDM1 PVDM2 PVDM3 4 3 5 1 6 CF COMPACT FLASH DO NOT REMOVE DURING NETWORK OPERATION 2 122285 EN NMD ESW 36 23x 5x FastEthernet Ports 22x 4x 21x 3x 20x 2x 19x 1x 18x 0x 29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 6x 35x 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x Ext Pwr 48V 0x 18x GE0...

Page 17: ...0 Slot for optional SFP module AUX CONSOLE AUX GE 0 1 SPD LNK SPD LNK GE 0 0 H W I C 2 H W I C 0 1 2 H W I C 3 H W I C 1 SFP 2 9 8 7 6 5 4 EN NM ESW 16 15x 7x 14x 6x 13x 5x FastEthernet Ports 12x 4x 11x 3x 10x 2x 9x 1x 8x 0x Ext Pwr 48V 0x 8x 7x 15x GE 10 100 1000 Base Tx 3 116842 Cisco 3825 EN NMD ESW 36 23x 5x FastEthernet Ports 22x 4x 21x 3x 20x 2x 19x 1x 18x 0x 29x 11x 28x 10x 27x 9x 26x 8x 25...

Page 18: ...co 3800 Series Routers OL 5966 01 Figure 6 Front Panel of Cisco 3845 Router Figure 7 Rear View of Cisco 3845 Router 1 LED indicators 3 Power connector AC shown 2 Power switch 4 Location of optional second power supply 116843 1 2 3 4 117774 ...

Page 19: ...C slot 1 12 Network module slot 3 6 LED indicators 13 Network module slot 1 7 HWIC slot 0 14 Screw holes for grounding lug 116844 CONSOLE HWIC 3 CF AIM 1 PVDM3 AIM 0 SFP GE 0 0 GE 0 1 PVDM0 PVDM1 PVDM2 SPD SPD LNK LNK HWIC 2 HWIC 1 HWIC 0 Do Not Remove During Network Operation AUX CISCO3845 1 0 4 2 1 3 8 9 14 13 12 11 10 1 2 3 4 15 5 7 6 EN NMD ESW 36 23x 5x FastEthernet Ports 22x 4x 21x 3x 20x 2x...

Page 20: ...ement process and is important for access to support services The Cisco Product Identification tool can be accessed at the following URL http tools cisco com Support CPI index do Built In Ports Cisco 3800 series routers provide the following built in ports Two 1000BASE T Gigabit Ethernet ports with RJ 45 connectors for shielded twisted pair One of these ports provides a slot for an optional small ...

Page 21: ...e into a router slot The Cisco 3825 router provides two slots for network modules The lower network module slot of this router labeled 1 on the rear panel can hold either of the following sizes of network modules One single wide network module One extended single wide network module The upper network module slot of the Cisco 3825 router labeled 2 on the rear panel can hold any of the following siz...

Page 22: ... rear of the router or into slots in network modules Interface cards come in the following types WAN interface card WIC Voice interface card VIC Voice data T1 E1 WAN interface card VWIC High speed WAN interface card HWIC Note You can insert any kind of interface card WIC VIC VWIC or HWIC into a router HWIC slot HWICs must be installed directly into router slots not into network modules The Cisco 3...

Page 23: ... interface on a network module or interface card is identified in Cisco IOS software by an interface type and a number or series of numbers separated by forward slashes Port numbers for Cisco 3800 series routers follow the rules in this section Note Port numbering conventions differ for different router series For routers that are not part of the Cisco 3800 series consult your router documentation...

Page 24: ...ds are numbered router slot module slot port where router slot is 1 or 2 for the Cisco 3825 router and 1 2 3 or 4 for the Cisco 3845 router module slot is the slot in the network module for the interface card and port is the port number in the interface card For example port 0 of a voice interface card in slot 1 of a voice network module in slot 4 of a Cisco 3845 router would be identified as voic...

Page 25: ...nput power supply an AC input power supply with IP phone power output or a DC input power supply The Cisco 3825 router has one internal power supply and also provides a connector for the optional Cisco Redundant Power System RPS external backup power source The Cisco 3845 router supports two internal power supplies and operates in redundant mode both are installed Table 1 Cisco 3800 Series Routers...

Page 26: ...t 40 degrees C or above they operate at high speed The power supply has its own integrated fan Note On the Cisco 3825 router when the router is installed with a Inline Power ILP power supply the internal multispeed fans will operate at high speed only To verify the fan speed use the show environment command Real Time Clock and Battery An internal real time clock RTC with battery backup allows the ...

Page 27: ...phones DC 300 W 1025 BTU hr 370 W 1260 BTU hr 360 W 1230 BTU hr 325 W 1110 BTU hr Console and auxiliary ports RJ 45 connector Operating temperature 32 to 104 F 0 to 40 C Nonoperating temperature 40 to 185 F 40 to 85 C Operating humidity 5 95 noncondensing Operating altitude Up to 6 500 ft 2 000 m derate temperature 1 C per 1 000 ft Noise level 50 dBA typical 53 dBA maximum Regulatory compliance FC...

Page 28: ...out IP phone support AC with IP phone support System only IP phones DC 435 W 1485 BTU hr 555 W 1890 BTU hr 360 W 1230 BTU hr 460 W 1570 BTU hr Console and auxiliary ports RJ 45 connector Operating temperature 32 to 104 F 0 to 40 C Nonoperating temperature 40 to 185 F 40 to 85 C Operating humidity 5 95 noncondensing Operating altitude Up to 6 500 ft 2 000 m derate 1 C per 1 000 ft Noise level 56 dB...

Page 29: ...eries Routers OL 5966 01 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 ...

Page 30: ...Regulatory Compliance 16 Overview of Cisco 3800 Series Routers OL 5966 01 ...

Page 31: ...eral safety Keep the router area clear and dust free during and after installation If you remove the router cover put it in a safe place Keep tools and components away from walk areas Do not wear loose clothing that could get caught in the router Fasten your tie or scarf and roll up your sleeves Wear safety glasses when working under conditions that might be hazardous to your eyes Do not perform a...

Page 32: ...s equipment to a general purpose outlet could be hazardous The telecommunications lines must be disconnected 1 before unplugging the main power connector or 2 while the housing is open or both Statement 1043 Warning Ultimate disposal of this product should be handled according to all national laws and regulations Statement 1040 Warning To prevent the system from overheating do not operate it in an...

Page 33: ...lectronic printed circuit cards are improperly handled and can cause complete or intermittent failures Always follow ESD prevention procedures when removing and replacing modules Ensure that the router 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 router frame to channel unwanted...

Page 34: ...es routers operate at a temperature of 32 to 104 degrees F 0 to 40 degrees C and a humidity of 5 to 95 percent noncondensing When planning your site layout and equipment locations remember the precautions described in the next section Site Configuration to help avoid equipment failures and reduce the likelihood of environmentally caused shutdowns If you are experiencing shutdowns or an unusually h...

Page 35: ... in a 19 inch rack or in a 23 inch rack with adapters from your rack manufacturer For mounting procedures see the Rack Mounting the Router section on page 10 of Installing Cisco 3800 Series Routers in an Equipment Rack Consider the following information when planning your equipment rack configuration Allow clearance around the rack for maintenance Enclosed racks must have adequate ventilation Ensu...

Page 36: ... Router name_______________________________________________________ Task Verified by Date Installation Checklist copied Background information placed in site log Site power voltages verified Installation site power check completed Required tools available Additional equipment available Router received Product registration card received Cisco com contact information label received Router components...

Page 37: ...p the router in its shipping container to prevent accidental damage The router cables publications and any optional equipment you ordered may be shipped in more than one container When you unpack the containers check the packing list to ensure that you received all the following items Router 6 ft 1 8 m AC power cord for AC powered routers Ethernet cable for Gigabit Ethernet interface One pair of r...

Page 38: ...nt chassis grounding AWG 18 1 mm2 or larger wire for EN IEC 60950 compliant chassis grounding For NEC compliant grounding a ring terminal with an inner diameter of 1 4 inch 5 to 7 mm Cables for connection to WAN and LAN ports Note For information on cables and cable specifications for WAN and LAN ports on network modules and interface cards refer to the Cisco Network Modules Hardware Installation ...

Page 39: ...that accompanied the router Note Cisco 3800 series routers are not designed to be placed on a desktop or table Cisco 3800 series routers are shipped with network modules WAN interface cards WICs voice interface cards VICs power supplies and other optional equipment that you ordered already installed If you need to remove or install these or other items we recommend that you do so before installing...

Page 40: ...the weight of the unit Statement 1032 Caution To prevent damage to the router never attempt to lift or tilt it by the plastic panel bezel on the front Always hold the router by the metal body Cisco 3800 series routers can be installed in 19 inch and 23 inch racks using the brackets supplied with the router These brackets are shown in Figure 1 and Figure 2 The left and right brackets are interchang...

Page 41: ... the rear of the router with the rear panel facing forward Attaching Brackets to the Router for Rack Mounting Attach the mounting brackets to the router using a number 2 Phillips screwdriver to install the screws provided with the brackets Figure 3 through Figure 6 show bracket attachment locations using a Cisco 3845 router as an example Caution Do not overtorque the screws The recommended torque ...

Page 42: ...ch rack Right bracket for 23 inch rack Left bracket for 23 inch rack Left bracket for 19 inch rack Use six screws on each side Left bracket for 23 inch rack Left bracket for 19 inch rack EN NM ESW 16 15x 7x 14x 6x 13x 5x FastEtherne t Ports 12x 4x 11x 3x 10x 2x 9x 1x 8x 0x Ext Pwr 48V 0x 8x 7x 15x GE 10 100 1000 Base T x 117984 Right bracket for 19 inch rack Right bracket for 23 inch rack Use six ...

Page 43: ...he only unit in the rack When mounting this unit in a partially filled rack load the rack from the bottom to the top with the heaviest component at the bottom of the rack If the rack is provided with stabilizing devices install the stabilizers before mounting or servicing the unit in the rack Statement 1006 Left bracket for 23 inch rack 117985 Left bracket for 19 inch rack Use six screws on each s...

Page 44: ...nt locations Figure 7 Attaching the Optional Cable Management Bracket Grounding the Router Warning This equipment must be grounded Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available Statement 1024 Warning...

Page 45: ...wo hole barrel lug approximately 0 75 in 20 mm For a user provided ring terminal as required Step 2 Crimp the ground wire to the two hole barrel lug or ring terminal using a crimping tool of the appropriate size Step 3 Attach the two hole barrel lug or ring terminal to the router chassis as shown in Figure 8 Figure 9 Figure 10 or Figure 11 For a two hole barrel lug use the two screws with captive ...

Page 46: ...r EN NM ESW 16 15x 7x 14x 6x 13x 5x FastEthernet Ports 12x 4x 11x 3x 10x 2x 9x 1x 8x 0x Ext Pwr 48V 0x 8x 7x 15x GE 10 100 1000 Base Tx 122284 Ground lug attachment 117014 EN NMD ESW 36 23x 5x FastEthernet Ports 22x 4x 21x 3x 20x 2x 19x 1x 18x 0x 29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 6x 35x 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x Ext Pwr 48V 0x 18x GE0 10 100 1000 Base Tx 35x 10 100 1000 Ba...

Page 47: ... and cables for administrative access as required for your installation For cable connection procedures see these sections of the Connecting Cables to Cisco 3800 Series Routers document Power Connections page 19 Connecting WAN LAN and Voice Cables page 28 Connecting a Console or Modem page 29 EN NM ESW 16 15x 7x 14x 6x 13x 5x FastEthernet Ports 12x 4x 11x 3x 10x 2x 9x 1x 8x 0x Ext Pwr 48V 0x 8x 7x...

Page 48: ...Grounding the Router 18 Installing Cisco 3800 Series Routers in an Equipment Rack OL 5969 01 ...

Page 49: ...tion in restricted access areas A restricted access area can be accessed only through the use of a special tool lock and key or other means of security Statement 1017 Warning Do not work on the system or connect or disconnect cables during periods of lightning activity Statement 1001 Power Connections This section explains how to connect AC or DC power inputs to Cisco 3825 and Cisco 3845 routers I...

Page 50: ...Cisco 3825 router Warning This product relies on the building s installation for short circuit overcurrent protection Ensure that the protective device is rated not greater than 120 VAC 45 A 240 VAC 30 A Statement 1005 The following warning applies to both AC power supplies and AC power supplies with IP phone power in the Cisco 3845 router Warning This product relies on the building s installation...

Page 51: ... return connection Table 2 DC Wiring Requirements for Cisco 3825 Routers DC Input1 1 The input voltage tolerance limits for DC power are 18 and 72 VDC DC Input Wire Size Safety Ground Wire Size Wire Terminal Lug Overcurrent Protection 24 36 VDC 12 A positive or negative single or dual source AWG 14 2 0 mm2 AWG 14 2 0 mm2 minimum Amp Tyco No 32957 or equivalent 20 A 36 60 VDC 8 A positive or negati...

Page 52: ...riate length for the terminals The length is 3 16 to 1 4 inch 5 to 6 mm for Amp Tyco number 32957 terminals and 5 16 to 3 8 inch 8 to 9 mm for Amp Tyco number 34852 terminals Step 3 Crimp the terminals onto the DC power input and safety ground wires Step 4 Remove the plastic covers from the terminal block Save the covers for reinstallation after you finish wiring Step 5 Connect the wires to the te...

Page 53: ...nt 117 Step 7 Organize and bundle the wires using cable ties as shown in Figure 14 or Figure 15 Step 8 If you are installing a second DC power supply repeat Step 1 through Step 7 for the second supply input B Step 9 Turn on power to the DC circuit Be sure to remove tape used to secure the circuit breaker switch in the OFF position 111752 A B A B Terminal block Negative DC input Positive DC input T...

Page 54: ... source to either the A input or the B input If there are dual power sources connect one source to the A input and one source to the B input Both sources must have the same polarity with respect to ground and voltage within 0 25 V Do not connect DC grounded and DC grounded dual sources to a Cisco 3825 router 117120 0 1 COMPACT FLASH SYS ACT SYS PWR RPS AUX PWR AIM0 AIM1 PVDM0 PVDM1 PVDM2 PVDM3 Cab...

Page 55: ...gure 18 source A and source B share common positive terminal connections This configuration is allowed only if Va equals Vb within 0 25 V Caution If source A and source B are wired with common positive terminals and their voltages are unequal by more than 0 25 V the higher voltage source can discharge into the lower voltage source through the negative terminals Excessive discharging currents throu...

Page 56: ...ent that source A and source B voltages be equal Figure 18 Connecting Source A and Source B with Common Positive Terminals In Figure 19 source A and source B are wired with opposite polarity grounds Do not use this configuration Caution Do not use the DC input configuration shown in Figure 19 A A B B Va Vb 127040 A A B B Va Vb A Va voltage Vb voltage within 0 25 V Va voltage Vb voltage greater tha...

Page 57: ...ng a second power supply in a Cisco 3845 router see the Installing and Upgrading Internal Components in Cisco 3800 Series Routers section The Cisco 3825 router has one internal power supply and provides a connector to an optional Cisco Redundant Power System RPS external backup source Figure 20 and Figure 21 illustrate this connection Use a flat blade screwdriver to pry off the door over the RPS c...

Page 58: ... index html Connect each WAN LAN or voice cable to the appropriate connector on the router or on a network module or interface card following these precautions Position the cables carefully so that they do not put strain on the connectors Organize cables in bundles so that they do not tangle Inspect the cables to make sure that the routing and bend radiuses are satisfactory Reposition cables if ne...

Page 59: ...es detach the end away from the router first Statement 1026 Connecting a Console or Modem Cisco 3800 series routers provide EIA TIA 232 asynchronous serial console and auxiliary ports These ports provide administrative access to the router either locally using an ASCII terminal or PC running HyperTerminal or similar terminal emulation software connected to the console port or remotely using a mode...

Page 60: ...co Modular Access Router Cable Specifications document Note On Cisco routers the console port is color coded blue Step 2 Configure your terminal or terminal emulation software for a data rate of 9600 bps 8 data bits no parity and 1 stop bit Note Because hardware flow control is not possible on the console port Cisco does not recommend connecting modems to this port Always connect modems to the aux...

Page 61: ... 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 Step 2 Make sure that your modem and the router auxiliary port are configured for the same transmission speed up to 115 200 bps is supported and hardware flow control with data carrier detect DCD and data terminal ready DTR enabled 117777 Conso...

Page 62: ...nnecting a Modem to the Auxiliary Port on a Cisco 3845 Router 117778 EN NMD ESW 36 23x 5x FastEthernet Ports 22x 4x 21x 3x 20x 2x 19x 1x 18x 0x 29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 6x 35x 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x Ext Pwr 48V 0x 18x GE0 10 100 1000 Base Tx 35x 10 100 1000 Base Tx GE1 17x Modem AUX port connector RJ 45 117779 Modem AUX port connector RJ 45 ...

Page 63: ...ower up the router make sure you have done the following Securely mounted and grounded the router See Installing Cisco 3800 Series Routers in an Equipment Rack for instructions Connected power and interface cables See Connecting Cables to Cisco 3800 Series Routers Connected a PC running HyperTerminal or a similar terminal emulation program to the console port configured for 9600 bps 8 data bits 1 ...

Page 64: ...tep 4 Startup messages appear on your console When the startup messages end the SYS LED shows a steady green The SYS PWR1 or SYS PWR2 LED on the Cisco 3845 router comes on depending on which power supply is installed Caution Do not press any keys on the keyboard until the messages stop and the SYS LED is steady green Any keys pressed during this time are interpreted as the first command typed when...

Page 65: ...ber Powered but malfunctioning ACT Off No packet activity or power up not completed Steady or blinking green Packets transmitted or received on any WAN or LAN port or router is monitoring internal activities power up completed RPS Cisco 3825 Off Connected to primary power source or power up not completed Steady green Connected to Cisco Redundant Power System power up completed CF Off CompactFlash ...

Page 66: ...After your router is powered up you are ready to begin the initial software configuration For basic configuration procedures see Cisco 3800 Series Software Configuration Setting the Date and Time If the router has been exposed to nonoperating environmental conditions its internal real time clock RTC may not display the correct date and time To set the RTC manually use one of the forms of the calen...

Page 67: ...etwork Modules Hardware Installation Guide To troubleshoot interface cards see the Cisco Interface Cards Installation Guide These documents are available on Cisco com If you cannot find the source of the problem contact a customer service representative For information about obtaining technical support see the Obtaining Technical Assistance section on page 12 of Introduction to Cisco 3800 Series R...

Page 68: ...system power LED and the fans can help you troubleshoot a power problem Check the following items Note The Cisco 3845 router has two system power LEDs one for each power supply labeled SYS PWR1 and SYS PWR2 Normal Indications With the power switch on normal indications are SYS LED steady green SYS PWR LED steady green for the Cisco 3825 router or SYS PWR1 or SYS PWR2 LED steady green for the Cisco...

Page 69: ... functional Router partially boots but LEDs do not come on Check for a power supply failure by inspecting the SYS PWR LED on the Cisco 3825 router or the SYS PWR1 LED or SYS PWR2 LED on the Cisco 3845 router depending on which power supply is active If the LED is green the power supply is functional If the SYS PWR LED is not on see the Obtaining Technical Assistance section on page 12 of Introduct...

Page 70: ... card To determine which Cisco IOS releases support your router network modules and interface cards go to the Software Advisor at http tools cisco com Support Fusion You must have an account on Cisco com Router does not boot properly or constantly or intermittently reboots Make sure that all modules are firmly seated in their slots Check the router chassis or software For information about custome...

Page 71: ...ay Limited Hardware Warranty Terms section on page 10 of Introduction to Cisco 3800 Series Routers Hardware Documentation LEDs LEDs enable you to determine router performance and operation Figure 26 and Figure 27 show the LEDs on the Cisco 3825 router Figure 28 and Figure 29 show the LEDs on the Cisco 3845 router Each power supply in a Cisco 3845 router also has its own LED For an explanation of t...

Page 72: ...x 21x 3x 20x 2x 19x 1x 18x 0x 29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 6x 35x 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x Ext Pwr 48V 0x 18x GE0 10 100 1000 Base Tx 35x 10 100 1000 Base Tx GE1 17x EN NM ESW 16 15x 7x 14x 6x 13x 5x FastEthernet Ports 12x 4x 11x 3x 10x 2x 9x 1x 8x 0x Ext Pwr 48V 0x 8x 7x 15x GE 10 100 1000 Base Tx AUX CONSOLE GE 0 0 GE 0 0 GE 1 0 SPD LNK SFP SPD LNK 117781 ...

Page 73: ...leted SYS PWR Front Off Router not receiving power Steady green Normal operation immediately after power up RPS Front Off Connected to primary power system Steady green Connected to redundant power system SYS PWR1 Front Off Router not receiving power power supply 1 not present or power up not completed Steady green Present and enabled power up completed Amber Present and off or malfunctioning SYS ...

Page 74: ...not present Green Present and enabled Amber Present but malfunctioning PVDM0 Front Rear Off PVDM0 not present Green Present and enabled Amber Present but malfunctioning PVDM1 Front Rear Off PVDM1 not present Green Present and enabled Amber Present but malfunctioning PVDM2 Front Rear Off PVDM2 not present Green Present and enabled Amber Present but malfunctioning PVDM3 Front Rear Off PVDM3 not pres...

Page 75: ...l Intake temperature 31 Normal Voltage 1 3300 is Normal Current voltage 3316 mV Voltage 2 5150 is Normal Current voltage 5210 mV Voltage 3 2500 is Normal Current voltage 2525 mV Voltage 4 1200 is Normal Current voltage 1191 mV 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 R...

Page 76: ...r Messages This section describes error messages that may appear on an external console screen For more information about consoles see the Connecting a Console or Modem section on page 29 of Connecting Cables to Cisco 3800 Series Routers Cisco IOS software checks the system once every 30 seconds If an error still exists the error message is displayed again if the error has cleared a recovery messa...

Page 77: ... page 12 of Introduction to Cisco 3800 Series Routers Hardware Documentation for information about customer service Cisco 3845 Router Error Messages The Cisco 3845 router supports two internal power supplies and returns the following error messages for them Error Message System detected SYS PS 1 2 input voltage fail condition Explanation Power to the indicated power supply has failed Recommended A...

Page 78: ... with power system 1 2 or this power system has been turned off Explanation Multiple failures have occurred in the indicated power supply This message can also appear if you have installed two power supplies in a Cisco 3845 router but only one is powered on Recommended Action If the power supply is turned off turn it on If it has failed replace it See Installing and Upgrading Internal Components i...

Page 79: ...echnical support Recovering a Lost Password You can recover a lost enable password but an enable secret password is encrypted and is not recoverable If you lose an enable secret password configured on your router you can replace it with a new enable secret password For password recovery and replacement procedures see http www cisco com warp public 474 index shtml More Troubleshooting Help For info...

Page 80: ...More Troubleshooting Help 50 Troubleshooting Cisco 3800 Series Routers OL 5972 01 ...

Page 81: ...ine 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 If you remove a network module along with any installed WAN or voice interface cards install another module and card combination exactly like it Caution The Cisco 3825 router does not support OIR of network modules To avoid dam...

Page 82: ...module Slots 3 and 4 can be combined in the same way to hold one double wide or extended double wide network module 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 suppo...

Page 83: ...rdous 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 Statement 1029 Modifying the Width of Network Module Slots T o reduce extended single wide and extended double wide ...

Page 84: ...nk 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 Install a slot adapter in each single wide slot as described in the Installing and Removing Slot Adapters section on page 59 Then attach a blank faceplate in each slot and tighten the two screws Figure 31 Slot Divider and Adapters for...

Page 85: ... Modules Generic Router 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 1 Slot adapter 2 Second slot adapter 121388 2 1 ...

Page 86: ...or Network Module Slot 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 It does not represent a detailed view of a Cisco 3800 series routers Note The guide rails begin approximat...

Page 87: ...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 When it is fully seated the slot divider s front surface is flush with the router s rear panel See Figure 34 Step 3 Pull gently on the slot divider to check that it is seated securely 1 Insert slot divider 2 Tighten screw so front surface is flush with...

Page 88: ...des 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 ...

Page 89: ...dapter follow these steps You need a number 2 Phillips screwdriver Step 1 Orient the slot adapter for insertion with the captive thumbscrew at the right side Step 2 Insert the slot adapter into the far right edge of the network module slot Step 3 Guide the triangular end of the slot adapter into the rectangular hole at the back of the slot and align the captive thumbscrew with the threaded hole in...

Page 90: ...ns 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 Statement 1029 Figure 36 shows a blank faceplate for a network module slot Note To c...

Page 91: ...peed WAN interface card HWIC Note You can install any type of interface card WIC VIC VWIC or HWIC into a router HWIC slot HWICs must be installed directly into router slots not into network modules The Cisco 3825 router and the Cisco 3845 router each provide four interface card slots labeled on the rear panel by HWIC and a number Each of these slots can be occupied by one single wide WIC VIC VWIC ...

Page 92: ...ceplates are described in the following sections 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 ...

Page 93: ...or 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 When the slot divider is fully seated its outer end is flush with the router s rear panel 1 Rear vi...

Page 94: ... into the track in the router slot Tighten the screw with a number 1 Phillips screwdriver See Figure 40 and Figure 41 When the slot divider is fully seated its outer end is flush with the router s rear panel 121382 EN NMD ESW 36 23x 5x FastEthernet Ports 22x 4x 21x 3x 20x 2x 19x 1x 18x 0x 29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 6x 35x 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x Ext Pwr 48V 0x 18x...

Page 95: ...ries Routers OL 5974 01 Figure 40 Inserting Slot Divider into HWIC Slot Cisco 3845 Router 1 Slot divider 3 Screw hole 2 Screw tab 4 Track 121581 EN NM ESW 16 15x 7x 14x 6x 13x 5x FastEthernet Ports 12x 4x 11x 3x 10x 2x 9x 1x 8x 0x Ext Pwr 48V 0x 8x 7x 15x GE 10 100 1000 Base Tx 1 2 4 3 ...

Page 96: ...lot Dividers from HWIC Slots Note The HWIC slots on both sides of a slot divider must be empty before you remove the slot divider To remove slot dividers from HWIC slots follow these steps Step 1 For a Cisco 3825 router reach into the HWIC slot and squeeze the two halves of the slot divider together Step 1 For a Cisco 3845 router loosen the screw Tip Do not remove the screw from the slot divider S...

Page 97: ...ide 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 Statement 1029 The high speed WAN interface card HWIC hardware kit for Cisco 3800 series routers contains four blank faceplates Each blank faceplat...

Page 98: ...ollow these procedures 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 Tip Save blank faceplates for future use ...

Page 99: ...e built in RJ 45 1000Base T connector to be active on this port Only SFP modules certified by Cisco are supported on Cisco 3800 series routers Table 6 lists supported SFPs Tip Use the show controller command at the Cisco IOS prompt to determine whether you are using an SFP certified by Cisco Table 6 SFPs Supported on Cisco 3800 Series Routers Cisco Part Number SFP Transceiver Fiber Diameter microm...

Page 100: ...tion and do not stare into open apertures Warning Ultimate disposal of this product should be handled according to all national laws and regulations Installing SFP Modules Follow these steps to install an SFP module in a Cisco 3800 series router Warning Because invisible laser radiation may be emitted from the aperture of the port when no fiber cable is connected avoid exposure to laser radiation ...

Page 101: ... are connected Do not pull on the cabling in an attempt to remove the SFP Step 2 Disconnect the SFP latch See Figure 45 Note SFP modules use various latch designs to secure the module in the SFP port Latch designs are not linked to SFP model or technology type For information on the SFP technology type and model see the label on the side of the SFP Figure 45 Disconnecting SFP Latch Mechanisms Tip ...

Page 102: ...Removing SFP Modules 72 Installing SFP Modules in Cisco 3800 Series Routers OL 5968 01 ...

Page 103: ...ents are handled improperly results in complete or intermittent failures To prevent ESD damage follow these guidelines Always use an ESD wrist or ankle strap and ensure that it makes good skin contact Connect the equipment end of the strap to an unfinished chassis surface Place a removed CompactFlash memory card on an antistatic surface or in a static shielding bag If the card will be returned to ...

Page 104: ...The ejector button moves outward so that it projects from the panel Step 3 Press the ejector button again This ejects the CompactFlash card partway out of its slot Step 4 Carefully pull the card out of the slot Step 5 Place the removed CompactFlash memory card on an antistatic surface or in a static shielding bag Step 6 Push the ejector button in until it clicks Caution To prevent damage to the ej...

Page 105: ...he ejector button projects from the panel push it in until it clicks Step 2 Insert the CompactFlash card into the slot until it is fully seated The ejector button should remain flush with the panel Note If the ejector button projects from the panel after you insert the CompactFlash card remove the card press the ejector button until it clicks and reinsert the card Caution To prevent damage to the ...

Page 106: ...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 Step 1 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 158076 ...

Page 107: ...r installing or removing these components depend on your router model For the Cisco 3825 router you must remove the router cover to access the power supply and motherboard Follow the Removing the Cover from a Cisco 3825 Router procedure on page 80 You must then remove the power supply together with its tray to access memory modules AIMs and PVDMs on the motherboard or to replace the power supply F...

Page 108: ...afety Warnings Warning During this procedure wear grounding wrist straps to avoid ESD damage to the card Do not directly touch the backplane with your hand or any metal tool or you could shock yourself Statement 93 Warning Only trained and qualified personnel should be allowed to install replace or service this equipment Statement 1030 Warning This equipment must be installed and maintained by ser...

Page 109: ...s are not designed to support the weight of the unit Statement 1032 Safety with Electricity When working on equipment that is powered by electricity follow these guidelines Locate the emergency power off switch in the room in which you are working Then if an electrical accident occurs you can quickly shut the power off Before working on the router turn off the power and unplug the power cord Disco...

Page 110: ...wer supply and motherboard The router must be removed from the rack for this procedure You will need number 1 and number 2 Phillips screwdrivers If your router uses AC or DC power observe the following warning 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...

Page 111: ...ply to replace it or to access components on the motherboard Continue with the Removing the Power Supply Assembly from a Cisco 3825 Router procedure on page 81 Figure 48 Removing the Cover from a Cisco 3825 Router Removing the Power Supply Assembly from a Cisco 3825 Router The power supply assembly in a Cisco 3825 router consists of the power supply and the tray on which it is mounted To remove th...

Page 112: ...board from a Cisco 3845 Router To access memory modules AIMs and PVDMs mounted on the motherboard of a Cisco 3845 router or to remove a motherboard to replace it with a new one follow these steps You need a number 2 Phillips screwdriver You do not need to remove the router from the rack It is not necessary to power off the router to remove the motherboard but the router does not operate until the ...

Page 113: ... 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 1 Loosen captive thumbscrews 2 Rotate ejector levers outward 117938 2 1 1 2 ...

Page 114: ...nent Locations on the Motherboard Figure 51 Component Locations on a Cisco 3825 Motherboard 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 5 6 7 10 8 127790 4 2 9 3 1 11 12 ...

Page 115: ...imum of 1024 MB If only one SDRAM DIMM is used it can be installed in either DIMM connector Caution When you remove or install DIMMs 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 Caution Handle DIMMs by the edges only DIMMs are ESD sensitive components and can be damaged by...

Page 116: ...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 Figure 53 DRAM DIMM Polarization Notch Removing an SDRAM DIMM To remove an SDRAM DIMM from the motherboard follow these steps Step 1 Pull the latches away from the DIMM at both ends This lifts the DIMM slightly Lift the DIMM compl...

Page 117: ...nnector See Figure 55 Step 3 Carefully insert the DIMM into the connector Step 4 Carefully and firmly press the DRAM DIMM into the connector until both latches rotate to the closed position against the DIMM Figure 55 Installing a DRAM DIMM To install an AIM continue with the AIM Installation and Removal procedure on page 88 To install a PVDM continue with the PVDM Installation and Removal procedur...

Page 118: ...ff with a snap fit on both ends Some AIMs are shipped with different accessory kits or more than one accessory kit If necessary use the plastic standoff with a snap fit on both ends from one kit and the machine thread metal standoffs and machine thread metal screws from a different kit Installing an AIM The following procedure requires a 1 4 inch nut driver and a number 1 Phillips screwdriver Caut...

Page 119: ...he motherboard near the AIM connector that you are going to use Figure 56 shows a typical installation Figure 56 Removing Screws from a Motherboard for AIM Installation Step 2 Locate the two machine thread metal standoffs from the accessory kit Do not use sheet metal thread standoffs Figure 57 shows these metal standoffs A Metal standoff locations B Plastic standoff location 121394 AIM slot 1 conn...

Page 120: ...andoffs 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 121202 ...

Page 121: ... 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 58695 Metal standoffs Snap in plastic standoff AIM ...

Page 122: ...M 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 Step 7 Check that the AIM is installed correctly on the motherboard See Figure 60 Figure 60 AIM In...

Page 123: ...e label to identify the AIM on the motherboard and apply the other part to the outside of the router Apply the labels as follows Step 1 If the label is attached to the AIM card carefully tear off the label at the perforation If the label is in the mounting kit separate the two parts at the perforation and apply one part to the AIM card Step 2 Position the other part of the label in a blank area on...

Page 124: ...he connector and the plastic standoff Keep the AIM parallel with the motherboard to prevent damage to the connector and plastic standoff Place the AIM in an antistatic bag to protect it from ESD damage To install an SDRAM DIMM continue with the SDRAM DIMM Removal and Installation procedure on page 85 To install a PVDM continue with the PVDM Installation and Removal procedure on page 96 If you are ...

Page 125: ...e 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 Step 3 Reinstall the AIM as described in AIM Installation and Removal section on page 88 Step 4 Reinstall the chassis cover as described in the Reinstalling the Cover on a Cisco 3825 Router section on page 105 and Installing or Replacing the ...

Page 126: ...Ms 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 Caution Handle PVDMs by the edges only PVDMs are ESD sensitive components and can be damaged by mishandling PVDM Location and Orientation The four PVDM connectors are located on the motherboard and are identified as PVDM0 PVD...

Page 127: ... 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 Step 3 Hold the PVDM at an angle and insert it carefully into the PVDM connector Tilt the PVDM up to the vertical position so that the clips snap into place at both ends See Figure 65 Figure 65 Installing a PVDM Polariz...

Page 128: ...ue with the AIM Installation and Removal procedure on page 88 If you are finished installing components continue with the Reinstalling the Power Supply Assembly in a Cisco 3825 Router procedure on page 105 or the Installing or Replacing the Plug In Motherboard in a Cisco 3845 Router procedure on page 105 Installing a Power Supply in a Cisco 3825 Router Three types of power supplies are available f...

Page 129: ... power supply and tray assembly following the procedure in the Removing the Power Supply Assembly from a Cisco 3825 Router section on page 81 Step 3 Turn the power supply assembly over so that the tray is on top Step 4 Using a number 1 Phillips screwdriver remove the two screws that hold the power supply to the tray Separate the pwer supply from the tray See Figure 67 Figure 67 Cisco 3825 Power Su...

Page 130: ...he primary power cable is connected to the motherboard as shown in Figure 69 Figure 69 Primary Power Cable Motherboard Connection 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 insta...

Page 131: ...eps 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 Make sure that the secondary power cable is connected to the motherboard as shown i...

Page 132: ...nents 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 To install a PVDM continue with the PVDM Installation and Removal procedure on page 96 1...

Page 133: ...ray 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 Make sure that the secondary power cable is connected to the motherboard as shown in Figure 71 Install the IP phone power cable as shown in Figure 73 Make s...

Page 134: ... 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 To install a PVDM continue with the PVDM Installation and Removal procedure on page 96 1 IP phone po...

Page 135: ...driver Step 1 Place the router on a flat surface with the front panel facing you Step 2 Place the cover on the base with about 1 inch 25 mm of clearance between the cover and the rear panel Step 3 Slide the cover back onto the base making sure that the hook at the rear edge of the cover near the left side fits underneath the card cage on the rear panel of the router Step 4 Reinstall the three scre...

Page 136: ...lies is permitted Caution To comply with Telcordia NEBS GR 1089 Core and EN 300386 requirements you must use foil twisted pair cable that is properly grounded at both ends To remove or install a power supply you must first remove the fan tray assembly Follow the same procedure to replace the fan tray assembly with a new one Step 1 Flip open the four small doors on the edges of the router front pan...

Page 137: ...hat the ejector levers on the new or replacement power supply are extended out away from the power supply Insert the power supply into the router from the front The power supply has a built in connector you do not need to attach any cables Step 4 Rotate the ejector levers inward until the power supply latches into place Fold down the handle Use a flat blade or number 2 Phillips screwdriver to tigh...

Page 138: ...108 Installing and Upgrading Internal Components in Cisco 3800 Series Routers OL 5975 04 Removing and Installing the Fan Tray and Power Supplies in a Cisco 3845 Router ...

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