Installation guide
Connecting the Router to Your Local Network
ii
Cisco 1750 Router Hardware Installation Guide
78-6169-02
Be sure to read the safety information in the Regulatory Compliance and Safety 
Information for the Cisco 1600 and Cisco 1700 Routers document that came with 
your router.
Warning
Read the installation instructions before you connect the system to 
its power source.
Warning
This equipment needs to be grounded. Use a green and yellow 14 
AWG ground wire to connect the host to earth ground during 
normal use.
Warning
Do not work on the system or connect or disconnect cables during 
periods of lightning activity.
Caution  Do not place anything on top of the router that weighs more than 
10 pounds (4.5 kg). Excessive weight on top of the router could 
damage the chassis.
Connecting the Router to Your Local Network
The router is connected to your local Ethernet network through the yellow 10/100 
Ethernet port. You must provide the following items for this connection:
• A straight-through, RJ-45-to-RJ-45 Ethernet cable
• A 10/100-Mbps Ethernet hub or switch
Warning
The ports labeled 
10/100-Mbps Ethernet port
 and 
Console port
 are 
safety extra-low voltage (SELV) circuits. SELV circuits should only 
be connected to other SELV circuits. Because BRI circuits are 
treated like telephone-network voltage, avoid connecting the 
SELV circuits to the telephone network voltage (TNV) circuits. (To 










