Cisco Systems WIC-1DSU-T1 Network Card User Manual


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another DSU/CSU. This LED is on during
normal operation.
Loopback
button
−−
Push this button to put the WAN interface
card into loopback mode. The service
provider can send a signal to test the
connection from your site to the central
office switch.
Push this button again to turn loopback
mode off.
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Updated: Jun 26, 2005 Document ID: 46795
Cisco − WIC−1DSU−T1 WAN Interface Card Cable Specifications
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