Cisco Cisco 1900 2900 3900 Series 8-Port Gigabit Ethernet HS-WIC with PoE Installation Guide
Connecting Cisco DSU/CSU High-Speed WAN Interface Cards
Obtaining Documentation, Obtaining Support, and Security Guidelines
5
Cisco IOS Release 12.4(20)T
OL-14875-01
Step 4
Turn on power to the router.
Step 5
Check that the CD LED comes on, which means that the internal DSU/CSU is communicating with the
DSU/CSU at the T1 service provider’s central office.
DSU/CSU at the T1 service provider’s central office.
Obtaining Documentation, Obtaining Support, and Security
Guidelines
Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback,
security guidelines, and also recommended aliases and general Cisco documents, see the monthly
What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical
documentation, at:
security guidelines, and also recommended aliases and general Cisco documents, see the monthly
What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical
documentation, at:
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