Hi Yatou, is your question if a WIC-1DSU-T1 card can be connected to a T1 circuit ? Here is what I found on the Cisco site:
WIC-1DSU-T1 The WIC-1DSU-T1 card is a single-port, T1/fractional T1 CSU/DSU interface card. Use the WIC-1DSU-T1 card for a cost effective router-CSU/DSU combination with the following features: T1 or fractional T1 network interface N X 64 kbps or N X 56 kbps non-channelized data rates (N = 1 to 24) Full management features: Configuration: Capability for remote configuration via telnet from Cisco IOS CLI Monitoring: Router and CSU/DSU manageable as a single SNMP entity; extensive CSU/DSU statistics provided by Cisco IOS CLI Troubleshooting: Extensive loopbacks (including a manual button for network line loopback), bit error rate tester (BERT) test patterns, alarm counters, and performance reports, all of which are accessible from Cisco IOS CLI. LEDs for carrier detect, loopback, and alarm functions. Technical Specifications Table 2-17 lists the technical specifications of the WIC-1DSU-T1 card. Table 2-17: WIC-1DSU-T1 Technical Specifications Type Description Interface type T1 or fractional T1 Serial network support Synchronous, full duplex Physical connector RJ-45 Number of connectors/ports One Cisco IOS requirement 11.3(4)T or later Compliance FCC Class B device, CE Safety conformance UL1950 Spare WIC-1DSU-T1= Regards, Georg Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=39141&t=39079 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]