Cisco 1603R Quick Start Manual page 8

C. Connect the router to the wide-area network (continued).
Cisco 1603 ISDN BRI S/T Connection
Note: You must provide a straight-through RJ-45-to-RJ-45 cable and (if required for your site) a network
termination (NT1) device for this connection.
Step 1
Connect one end of the cable to the orange ISDN BRI Ø S/T port on the rear panel.
Step 2
Depending on what is required by your telephone company, do one of the following:
• Connect the other end of the cable to an external NT1, then connect the NT1 to the ISDN wall jack.
• Connect the other end of the cable to the ISDN wall jack (as shown in this illustration).
8
OK LED