Cisco Router Cisco 831 How to use

Corporate Headquarters:
Copyright © 2002. Cisco Systems, Inc. All rights reserved.
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Release Notes for the Cisco 831, 836 and 837
Routers and SOHO 91, 96 and 97 Routers
This document describes new and changed information for the following documents:
•Cisco 837 Router and SOHO 97 Router Hardware Installation Guide
•Cisco 831 Router and SOHO 91 Router Cabling and Setup Quick Start Guide
•Regulatory Compliance and Safety Information for Cisco 800 Series and SOHO Series Routers
•Cisco 836 Router and SOHO 96 Router Hardware Installation Guide
•Cisco 836 Router and SOHO 96 Router Cabling and Setup Quick Start Guide
Related Documentation
The documentation title for the Cisco 837 Router and SOHO 97 Router on the top of page xii of the
Preface chapter is incorrect. The correct documentation title should be Cisco 837 Router and SOHO 97
Router Hardware Installation Guide.
Quick Start Guide: Setting Up the Cisco 831 and SOHO 91 Routers
In the Cisco 831 Router and SOHO 91 Router Cabling and Setup Quick Start Guide, the explanation of
the purpose of the document Cisco 800 Series Routers Software Configuration Guide is incorrect. This
error is on page 2 of the “Easy Installation: Try These Steps First” section. The correct explanation
should be as follows:
Cisco 800 Series Routers Software Configuration Guide—Provides detailed configuration instructions
for the Cisco 800 series router.

2
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
ADSL Cable
ADSL Cable
In the Cisco 837 Router and SOHO 97 Router Hardware Installation Guide, the lavender ADSL cable
mentioned in the “Unpacking the Box” section on page 2-5” of the Installation chapter is an item
included with the router. The default lavender ADSL cable that goes with the router box is a
straight-through cable. Upon request, the ADSL cable can be changed to a lavender with blue stripe
crossover cable.
ADSL Connector Pinouts (RJ-11)
In the Cisco 837 Router and SOHO 97 Router Hardware Installation Guide, the description of the ADSL
connector pinouts on page A-3 of Appendix A is incorrect. The correct description is as follow:
Warning Information for China
The Cisco 837 Router and SOHO 97 Router passed the compliance and safety test in China in January,
2003. The following new safety and warning information written in Simplified Chinese should therefore
be included in the “Compliance Statement” section starting from page 8 of the Regulatory Compliance
and Safety Information for Cisco 800 Series and SOHO Series Routers.
Table 1 ADSL Connector Pinouts (RJ-11)
Pin Functions
1Unused
2Unused
3Tip
4Ring
5Unused
6Unused

3
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Warning Message
Warning Message
Two of the warning messages listed in the Cisco 836 Router and SOHO 96 Router Hardware Installation
Guide and the Regulatory Compliance and Safety Information for Cisco 800 Series and SOHO Series
Routers do not exactly match to the router’s specification. They should be removed from the warning list.
The first warning message is as follows:
Warning This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do
not touch the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11
port, or the associated circuit-board when the ringer is active. The ringer is activated by an incoming
call.
It appears on page 2-3, Chapter 2 Installation of the Cisco 836 Router and SOHO 96 Router Hardware
Installation Guide and page 16 of the Regulatory Compliance and Safety Information for Cisco 800
Series and SOHO Series Routers. The warning message is not necessary because the Cisco 836 router
and SOHO 96 router do not have a ring signal generator embedded.
The second warning message is as follows:
Warning Network hazardous voltages are present in the ISDN cable. If you detach the ISDN cable, detach the
end away from the router first to avoid possible electric shock. Network hazardous voltages also are
present on the system card in the area of the ISDN port (RJ-45 connector), regardless of when power
is turned off (by pressing power switch to standby).
厂牌名称: Cisco
产品名称: ADSL 调制解调器
型号 : SOHO 97
输出电源: DC 18V/800Ma
制造厂: 国碁电子(中山) 有限公司
产地:中国
警语: 注意不可以插错电源, 使用网络线与计算器连系
厂牌名称: Cisco
产品名称: ADSL 调制解调器
型号 : 837
输出电源: DC 18V/800Ma
制造厂: 国碁电子(中山) 有限公司
产地:中国
警语: 注意不可以插错电源, 使用网络线与计算器连系

4
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Correction of the Switch
It appears on page 2-4, Chapter 2 Installation of the Cisco 836 Router and SOHO 96 Router Hardware
Installation Guide and page 22 of the Regulatory Compliance and Safety Information for Cisco 800
Series and SOHO Series Routers. The warning is not necessary because the ISDN cable does not connect
to the ISDN wall jack directly, instead, it connects to a NT1 box first, and the NT1 box to the ADSL
splitter. The ADSL splitter then connects to the ISDN wall jack through an unshielded Category 5 cable.
Therefore, no network hazardous voltages are present in the ISDN cable.
Correction of the Switch
The switch cover wording on the back panel of the Cisco 831, 836 and 837 routers, and the Cisco SOHO
91, 96 and 97 routers is not correct. The words “ON” and “OFF” shown on the switch cover should be
“1” and “0” as depicted in Figure 1, Figure 2, and Figure 3. “1” represents power on, while “0”
represents power off. The back panel of the Cisco 831, 836 and 837 routers is almost identical to the
back panel of the Cisco SOHO 91, 96 and 97 routers. The change on the switch cover will not affect any
functionality of the router.
Figure 1 Back Panel of the Cisco 837 Router
Figure 2 Back Panel of the Cisco 831 Router
82007
ETHERNET
4321
Cisco 837
ADSL +18 VDC
CONSOLE
135
24678
82022
ETHERNET 10BASET COMPUTERS (E0)
4321
Cisco 831
ETHERNET 10BASET
INTERNET (E1)
+18 VDC
CONSOLE
135
24
6
78

5
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
New Warning Tag on Desktop Power Adapter
Figure 3 Back Panel of the Cisco 836 Router
New Warning Tag on Desktop Power Adapter
A new yellow tag will be attached to the power cord of the desktop power adapter. This tag contains the
correct input voltage information to help avoid using the wrong power supply cable when connecting to
the Cisco 831, 836 and 837 routers and Cisco SOHO 91, 96 and 97 routers. Always use the desktop
power adapter shipped with your router to connect to the router. Refer to Figure 4 for details on the
warning message.
Figure 4 Warning Message on Desktop Power Adapter Power Cord
Connecting the Power Plug to the Router
Use the power latch provided in the accessory kit to prevent the power adapter plug from disconnecting
from the Cisco 831, 836 and 837 routers and Cisco SOHO 91, 96 and 97 routers.
Perform the steps below to slide the power adapter plug into the power latch and connect the plug to the
router.
ETHERNET
4321
Cisco 836
CONSOLE ISDN S/T
82715
ADSL o ISDN
+18 VDC
135
247
6
89
Cisco 800 / SOHO series
18Vdc
88927

6
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Connecting the Power Plug to the Router
Step 1 Place the cable of the power adapter through the ditch of the power latch as shown in Figure 5.
Figure 5 Power Latch Assembly
Step 2 Slide the plug into the power latch ditch as shown in Figure 6 and Figure 7.
Figure 6 Power Plug and Power Latch
1Power adapter plug 2Power latch
95479
1
2
95480

7
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Connecting the Power Plug to the Router
Figure 7 Power Plug in Power Latch Ditch
Step 3 Turn the power latch upside down as shown in Figure 8.
Figure 8 Upside-Down Power Latch
Step 4 Connect the plug to the Cisco 837 router as shown in Figure 9.
95481
95482

8
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Connecting the Power Plug to the Router
Figure 9 Connect the Plug to the Cisco 837 Router
.
Step 5 Connect the plug to the power jack of the router and hook the latches to the holes on the router as
shown in Figure 10. Figure 10 shows a Cisco 837 router, but this step can be applied to the Cisco 831
and 836 routers and Cisco SOHO 91, 96 and 97 routers.
Step 6 The power plug is connected to the router firmly with the help of power latch as shown in Figure 10.
Figure 10 Power Plug Connects to Router
1Cisco 837 router 2Power latch
95494
ETHERNET
4321
Cisco 837
ADSL +18 VDC
CONSOLE
1
2
95495
ETHERNET
4321
Cisco 837
ADSL
CONSOLE
+18 VDC

9
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Obtaining Documentation
Obtaining Documentation
The following sections explain how to obtain documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following URL:
http://www.cisco.com
Translated documentation is available at the following URL:
http://www.cisco.com/public/countries_languages.shtml
Documentation CD-ROM
Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM
package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may
be more current than printed documentation. The CD-ROM package is available as a single unit or
through an annual subscription.
Ordering Documentation
Cisco documentation is available in the following ways:
•Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from
the Networking Products MarketPlace:
http://www.cisco.com/web/ordering/root/index.html
•Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription
Store:
http://www.cisco.com/go/subscription
•Nonregistered Cisco.com users can order documentation through a local account representative by
calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, elsewhere in North
America, by calling 800 553-NETS (6387).
Documentation Feedback
If you are reading Cisco product documentation on Cisco.com, you can submit technical comments
electronically. Click the Fax or Email option under the “Leave Feedback” at the bottom of the Cisco
Documentation home page.
You can e-mail your comments to b[email protected].

10
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Obtaining Technical Assistance
To submit your comments by mail, use the response card behind the front cover of your document, or
write to the following address:
Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can
obtain documentation, troubleshooting tips, and sample configurations from online tools by using the
Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to
the technical support resources on the Cisco TAC Web Site.
Cisco Connection Online
Cisco Connection Online (CCO) is Cisco Systems’ primary, real-time support channel. Maintenance
customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services
to Cisco’s customers and business partners. CCO services include product information, product
documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes,
brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced
simultaneously: a character-based version and a multimedia version that resides on the World Wide Web
(WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and
it is excellent for quick access to information over lower bandwidths. The WWW version of CCO
provides richly formatted documents with photographs, figures, graphics, and video, as well as
hyperlinks to related information.
You can access CCO in the following ways:
•WWW: http://www.cisco.com
•WWW: http://www-europe.cisco.com
•WWW: http://www-china.cisco.com
•Telnet: cco.cisco.com
•Modem: From North America, 408 526-8070; from Europe, 33 1 64 46 40 82. Use the following
terminal settings: VT100 emulation; databits: 8; parity: none; stop bits: 1; and connection rates up
to 28.8 kbps.
For a copy of CCO’s Frequently Asked Questions (FAQ), contact [email protected]. For additional
information, contact [e-mail].
Note If you are a network administrator and need personal technical assistance with a Cisco product that is
under warranty or covered by a maintenance contract, contact Cisco’s Technical Assistance Center
(TAC) at 800553-2447, 408526-7209, or [email protected]m. To obtain general information about Cisco
Systems, Cisco products, or upgrades, contact 800553-6387, 408526-7208, or [email protected].

11
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Cisco Connection Online
Technical Assistance Center
The Cisco TAC is available to all customers who need technical assistance with a Cisco product,
technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC
Web Site and the Cisco TAC Escalation Center.
Inquiries to Cisco TAC are categorized according to the urgency of the issue:
•Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities,
product installation, or basic product configuration.
•Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably
impaired, but most business operations continue.
•Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects
of business operations. No workaround is available.
•Priority level 1 (P1)—Your production network is down, and a critical impact to business operations
will occur if service is not restored quickly. No workaround is available.
Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of
service contracts, when applicable.
Cisco TAC Web Site
The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The
site provides around-the-clock access to online tools, knowledge bases, and software. To access the
Cisco TAC Web Site, go to the following URL:
http://www.cisco.com/tac
All customers, partners, and resellers who have a valid Cisco services contract have complete access to
the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a
Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or
password, go to the following URL to register:
http://www.cisco.com/register/
If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com
registered, you can open a case online by using the TAC Case Open tool at the following URL:
http://www.cisco.com/tac/caseopen
If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC
Web Site.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority
level 2; these classifications are assigned when severe network degradation significantly impacts
business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC
engineer will automatically open a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following
URL:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

12
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Cisco Connection Online
Before calling, please check with your network operations center to determine the level of Cisco support
services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network
Supported Accounts (NSA). In addition, please have available your service agreement number and your
product serial number.
CCIP, the Cisco Arrow logo, the Cisco Powered Network mark, the Cisco Systems Verified logo, Cisco Unity, Follow Me Browsing, FormShare,
iQ Breakthrough, iQ Expertise, iQ FastTrack, the iQ Logo, iQ Net Readiness Scorecard, Networking Academy, ScriptShare, SMARTnet, TransPath,
and Voice LAN are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, Discover All That’s Possible, The Fastest
Way to Increase Your Internet Quotient, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX, Catalyst, CCDA,
CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco
Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step, GigaStack,
Internet Quotient, IOS, IP/TV, LightStream, MGX, MICA, the Networkers logo, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing,
RateMUX, Registrar, SlideCast, StrataView Plus, Stratm, SwitchProbe, TeleRouter, and VCO are registered trademarks of Cisco Systems, Inc. and/or
its affiliates in the U.S. and certain other countries.
All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply
a partnership relationship between Cisco and any other company. (0208R)
Copyright © 2002, Cisco Systems, Inc.
All rights reserved.

13
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Cisco Connection Online

14
Release Notes for the Cisco 831, 836 and 837 Routers and SOHO 91, 96 and 97 Routers
78-15225-03
Cisco Connection Online