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Preparing to Install the Router 2-11

Preparing to Connect to a Network

Figure 2-1 Serial Transition Cables

Although attempting to manufacture your own serial cables is not recommended (because

of the small size of the pins on the DB-60 serial connector), cable pinouts are provided in

the appendix “Cable Speciﬁcations.” To order a cable, refer to the section “Obtaining

Service and Support” in the “Overview of the Router” chapter.

Router connections

EIA/TIA-449 V.35 X.21

Network connections at the modem or CSU/DSU

H2485

EIA/TIA-232 EIA-530

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 137 138

About This Guide 1
Organization 2
Conventions 2
Overview of the Router 5
Hardware Features 6
Overview of the Router 1-3 7
Overview of the Router 1-5 9
System Speciﬁcations 10
Obtaining Service and Support 11
Cisco Connection Online 12
Ordering Documentation 13
ISDN Connections 21
DTE or DCE 22
Signaling Standards 24
Router connections 25
EIA/TIA-449 V.35 X.21 25
EIA/TIA-232 EIA-530 25
EIA/TIA-232 Connections 26
EIA/TIA-449 Connections 26
V.35 Connections 27
X.21 Connections 28
Where to Go Next 31
Installing the Router 33
Required Tools and Equipment 34
Setting Up the Chassis 35
Rack-Mounting the Chassis 37
Wall-Mounting the Chassis 39
TOKEN RING 41
DC Power Speciﬁcations 42
Wiring the DC Power Supply 43
Input: –40– –72V 44
Current: 1.5–1.0A 44
Watts: 40W 44
Connecting to a Network 45
Installing the Router 3-17 49
AUX SER 0 ETH 51
Installing the Router 3-21 53
Conﬁguring the Router 55
Configuring the Router 4-3 57
Configuring the Router 4-5 59
Configuring the Router 4-9 63
Configuring the Router 4-11 65
Using Conﬁguration Mode 66
Using AutoInstall 67
Cisco IOS Software Basics 68
Saving Conﬁguration Changes 71
Conﬁguring ISDN 72
SPID_no [LDN] 74
Example ISDN Conﬁguration 75
Configuring ISDN 76
Getting More Information 77
Troubleshooting the Router 79
Isolating Problems 80
° F (0to40°C) 80
Reading the LEDs 81
Figure A-3 Model 2503 LEDs 82
Figure A-4 Model 2504 LEDs 82
Figure A-5 Model 2513 LEDs 82
Figure A-6 Model 2514 LEDs 83
Figure A-7 Model 2515 LEDs 83
Maintaining the Router 85
Opening the Chassis 86
Screw Slot 87
Flat-blade screwdriver 87
Maintaining the Router B-5 89
Maintaining the Router B-7 91
Upgrading the DRAM SIMM 92
• ESD-preventive wrist strap 94
• System-code SIMM(s) 94
System-Code SIMM Replacement 95
Closing the Chassis 97
Cable Speciﬁcations 99
Identifying a Roll-Over Cable 100
Token Ring Port Pinouts 105
EIA/TIA-232 108
EIA/TIA-449 111
<— indicates DCE to DTE 114
Multiport Serial Routers 123
Safety Recommendations 124
General Site Requirements 125
Site Environment 126
Preventive Site Conﬁguration 126
Conﬁguring Equipment Racks 127
Power Supply Considerations 127
Installation Checklist 129
Creating a Site Log 130
Cabling Considerations 130
Distance Limitations 131
Console Port Connections 133
Auxiliary Port Connections 133
Ethernet Connections 134
Token Ring Connections 134
BRI Connections 136
Inspecting the System 137

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