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Cisco Integrated Services Router Hardware Installation Guide
OL-23125-02
Chapter3 Connecting the Router Cisco 860, 880, 890 Series
To connect the Data BRI port to the ISDN service provider, follow these steps:
Note Although the following procedure shows a Cisco 888W data router, this procedure applies to all
Cisco 880 series router with a Data BRI port.
Step1 Connect one end of the orange ISDN S/T cable to the Data BRI port on the router. Figure3-25 shows a
Data BRI connection.
Figure3-25 Connecting the Data BRI Port to the ISDN Line
Step2 Connect the other end of the orange ISDN S/T cable to the S/T port on the NT1 box.
Step3 Connect the first unshielded CAT 5 cable from the U-port on the NT1 box to the telephone line port on
the splitter.
1Data BRI port on the router 6U-port on the NT1 box
2ISDN S/T cable 7xDSL splitter (provided by the xDSL service
provider)
3Network termination 1 (NT1) box 8Telephone line port on the splitter
4S/T port on the NT1 box 9Telecommunication service port on the
splitter
5Unshielded CAT 5 cable 10 Wall jack
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