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Maintaining the Router B-1
APPENDIX
B
Maintaining the Router
This appendix contains selected maintenance procedures you might need to perform on the
router as your internetworking needs change.
This appendix includes the following sections:
• Opening the Chassis
• Upgrading the DRAM SIMM
• Replacing the System-Code SIMMs
• Closing the Chassis
Additional maintenance procedures are available on the documentation CD that
accompanied the router.
Caution Before opening the chassis, be sure that you have discharged all static electricity
from your body and the power is OFF. Before performing any procedures described in this
appendix, review the section “Safety Recommendations” in the chapter “Preparing to
Install the Router.”
Warning Before working on a chassis or working near power supplies, unplug the power
cord on AC units; disconnect the power at the circuit breaker on DC units. (To see translated
versions of this warning, refer to the Regulatory Compliance and Safety Information
publication.)
- About This Guide 1
- Organization 2
- Conventions 2
- Overview of the Router 5
- Illo has been ordered 6
- Overview of the Router 1-3 7
- Router Hardware Features 7
- Port Configuration 8
- Remote Node Services 9
- Terminal Services 10
- Plain old 11
- IP or IPX 11
- System Specifications 12
- Obtaining Service and Support 13
- Cisco Connection Online 14
- Ordering Documentation 15
- Safety Recommendations 17
- General Site Requirements 20
- Configuring Equipment Racks 21
- Power Supply Considerations 22
- DTE or DCE 23
- Signaling Standards 25
- Router connections 27
- EIA/TIA-449 V.35 X.21 27
- EIA/TIA-232 EIA-530 27
- EIA/TIA-232 Connections 28
- EIA/TIA-449 Connections 28
- V.35 Connections 29
- X.21 Connections 30
- EIA-530 Connections 31
- Ethernet Connections 32
- Token Ring Connections 32
- BRI Connections 33
- Console Port Connections 34
- Auxiliary Port Connections 34
- Inspecting the System 35
- Installing the Router 37
- Setting Up the Chassis 38
- Rubber feet (5) 39
- Black adhesive strip 39
- Attaching the Brackets 40
- Installing the Router 3-5 41
- Wall-Mounting the Chassis 42
- Installing the Router 3-7 43
- DC Power Specifications 45
- Wiring the DC Power Supply 45
- Installing the Router 3-11 47
- Input: –40––72V 48
- Current: 1.5–1.0A 48
- Watts: 40W 48
- Connecting to a Network 49
- Installing the Router 3-15 51
- Specifications.” 53
- Installing the Router 3-19 55
- Input: 100-240VAC 56
- Freq: 50/60HZ 56
- Current: 1.2-0.6 A 56
- Configuring the Router 59
- Using Configuration Mode 61
- Using AutoInstall 62
- Using the Setup Facility 63
- Configuring the Router 64
- Configuring the Router 4-7 65
- Configuring the Router 4-11 69
- Setting Half-Duplex Mode 73
- Specifying the Boot Method 75
- Getting More Information 77
- Troubleshooting the Router 79
- Isolating Problems 80
- ° F (0to40°C) 80
- Reading the LEDs 81
- Maintaining the Router 83
- Opening the Chassis 84
- Screw Slot 85
- Flat-blade screwdriver 85
- CODE1 CODE0 86
- Upgrading the DRAM SIMM 87
- • ESD-preventive wrist strap 89
- • System-code SIMM(s) 89
- System-Code SIMM Replacement 90
- Maintaining the Router B-9 91
- Closing the Chassis 92
- Cable Specifications 95
- Identifying a Roll-Over Cable 96
- Token Ring Pinout 101
- EIA/TIA-232 104
- EIA/TIA-449 108
- <— indicates DCE to DTE 111
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