54 Chapter 3: Assembling and Cabling the WAN Components
The 1000 series routers provide a single LAN and a single WAN interface. The 1004 includes
a single ISDN BRI (S/T or U) interface. The 1003 includes a single serial interface. The 1600
and 800 series routers are seen as replacements to the 1000 series because routers in the 1000
series are nearing their end of life.
Assembling and Cabling the Equipment
There are a number of types of physical connectivity options available based on the technologies
being implemented. This section touches on the basics behind these connections. Much of what
this section holds is review for most people with any significant time in the industry. For more
in depth information regarding physical connectivity, pinouts for individual cables, and other
requirements, check out www.cisco.com.
Available Connections
For this section, refer to Figure 3-3, which represents a number of technologies. Note that if all
the labels are removed from the figure, the various connectivity possibilities become numerous.
Figure 3-3
Connection Types
Windows 95 PC
Cisco 700
Ethernet
PC modem
SOHO Site
RJ-11
BRI (RJ-45)
RJ-11
Modem
Serial
RS232
Central site
Cisco 36x0
Ethernet
Serial V.35, X.21, RS232
EIA/TIA-449, EIA-530
Serial V.35, X.21, RS232
EIA/TIA-449, EIA-530
BRI (RJ-45)
Cisco 1600
Branch office
T1/E1 for PRI
RJ-48
ISDN/Analog
Frame Relay
service