Cisco 700 - Manual (Page 42)

Connecting the ISDN Line
Cisco 700 Series Router Installation Guide 3-6
Figure 3-2 Connecting to the ISDN S/T Port When an NT1 Is Not Required
NT1 Required
To connect an ISDN line to the S/T port of a Cisco 761, Cisco 762, Cisco 765, Cisco 771,
Cisco 772, or Cisco 775
router when your telephone service provider said that an NT1 is
required, complete the following steps:
Step 1 Connect the orange ISDN S/T cable to the orange port labeled ISDN S/T on the
rear panel of your router.
Step 2 Connect the other end of the orange ISDN S/T cable to the NT1.
Step 3 Connect the ISDN cable provided with the NT1 to the NT1.
Step 4 Connect the other end of the ISDN cable to the ISDN wall jack.
(See Figure 3-3.)
12760
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 orange cable
to orange ISDN S/T port
Connect orange cable
to ISDN wall jack