Installing Your Router
3-7
Figure 3-3
Connecting to the ISDN S/T Port When an NT1 Is Required
Connecting the ISDN Line to the U Port
The U port connects to the telephone service provider network using the internal NT1.
Figure 3-4 shows the ISDN U port connection.
Caution
Always connect the red cable to the red U port on the router. Do not
connect the cable to a yellow Ethernet port. This will damage your router.
CONFIG
1
+5V ---1.5A +/-5%
-30V--- 0.2A +/-25%
S
0
NT-1
ISDN U
ISDN S/T
10BASET
CISCO 776
2
3
4
17258
Connect orange cable
to orange ISDN S/T port
Connect orange
cable to NT1
Connect ISDN U
cable to NT1
Connect cable to
ISDN wall jack
Connect NT1
power cord to
electrical outlet
Summary of Contents for 700 series
Page 8: ...Cisco 700 Series Router Installation Guide viii ...
Page 36: ...Where To Go From Here Cisco 700 Series Router Installation Guide 2 6 ...
Page 62: ...Where To Go From Here Cisco 700 Series Router Installation Guide 4 14 ...
Page 80: ...HUB NODE Switch Cisco 700 Series Router Installation Guide 6 6 ...
Page 96: ...Cisco 700 Series Router Installation Guide Loading a Configuration B 10 ...
Page 110: ...Cisco 700 Series Router Installation Guide Router Configuration Requirements C 14 ...