Cisco 700 series, Installation Manual

Page: 44 / 118

Connecting the ISDN Line
Cisco 700 Series Router Installation Guide 3-8
To connect an ISDN line to the U port on a router, complete the following steps.
Step 1
Connect the red ISDN U cable to the red port labeled ISDN U on the rear panel
of your router.
Step 2
Connect the other end of the red ISDN U cable to the ISDN wall socket. (See
Figure 3-4.)
Figure 3-4 Connecting to the ISDN U Port
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
Connect red cable
to red ISDN U port
If your wall jack has an RJ-11 connector,
attach RJ-45-to-RJ-11 adapter cable
to red cable, and then connect RJ-11
connector to ISDN wall jack
Connect red
cable to ISDN
wall jack
RJ-45-to-RJ-11
adapter cable
17261