3-3
Cisco 800M Series Integrated Services Router Hardware Installation Guide
Chapter 3 Connecting the Router
Note
Use the Cisco Configuration Express to configure the Internet connection settings. See
Cisco Configuration Professional Quick Start Guide
for more information.
Connecting an External Ethernet Switch
Cisco C841M-4X-JSEC/K9 and C841M-4X-JAIS/K9 ISRs have four LAN ports and Cisco
C841M-8X-JAIS/K9 ISR has eight LAN ports. If you are using Cisco C841M-4X-JSEC/K9 or
C841M-4X-JAIS/K9 ISR, you can connect four PCs to the router. If you need to connect more than four
PCs, you can add Ethernet connections to the router by connecting an external Ethernet switch to the
Ethernet switch on the router. Similarly, if you are using Cisco C841M-8X-JAIS/K9 ISR, use an external
Ethernet switch to connect more than eight PCs.
To connect an external Ethernet switch to an Ethernet switch port on the router, perform these steps:
Step 1
Connect one end of the Ethernet cable to an Ethernet switch port on the router, as shown in
Note
The connections remain the same for a 4 port module.
Figure 3-2
Connecting to an Ethernet Switch
Step 2
Connect the other end of the cable to the available port on the Ethernet switch to add additional Ethernet
connections.
MODE
Catalyst 3500
SERIES
XL
INLINE PO
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UTIL
DUPLX
SPEED
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1X
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64925
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Ethernet switch port on the router
3
CAT5 Ethernet cable, RJ-45–to–RJ-45,
connecting to an external Ethernet switch port
2
Available port on the external Ethernet switch
