Chapter 2 Installation
Installing Your Router
Figure 2-3 Connecting an ISDN Line to Cisco 801 and Cisco 803 Routers (without External NT1)
Cisco 803 router
HUB NO HUB
ETHE | RNET 10 | Cisco | 803 |
| BASE T | ||
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| CONSOLE | ISDN S/T |
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0 |
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| PHONE |
1 | 2 |
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1.Connect orange cable to orange ISDN S/T port.
ISDN wall jack
11677
2. Connect other end of cable to ISDN wall jack.
Figure 2-4 Connecting ISDN to Cisco 801 and Cisco 803 Routers (with External NT1)
Cisco 803 router
HUB | ETHERNET | 10 BASE T | Cisco 803 | ||
NO HUB | |||||
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| CONSOLE | ISDN S/T | |
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| PHONE | |
| 1 | 2 |
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1. Connect orange cable
to orange ISDN S/T port.
NT1
2.Connect other end 
of cable to NT1.
3.Connect ISDN U cable to NT1.
5. Connect NT1 power cord to electrical outlet.
ISDN wall jack
11676
4.Connect other end of cable to ISDN wall jack.
Cisco 800 Series Routers Hardware Installation Guide
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