Verilink NCC 2020 (880-503284-001) Product Manual - Manual (Page 21)

Quick Set-Up
Verilink NCC 2020 User Manual 2-7
The remaining options are correct for this example. The T1 circuit
and DTE should now be connected.
Once the CSU has been connected to the T1 circuit for at least
fifteen minutes, meaningful performance statistics will be available
under the Performance Menu. See
Chapter 4 for more details.
Within 15 seconds of connecting the T1 circuit, the NET LED on the
front of the NCC 2020 should change from red to green. If it does
not, the Diagnostics Menu may be used for troubleshooting. See
Chapter 5 for more information on diagnostics.
For more information on DIU 2130 modules see the DIU 2130 User
Manual .
The configuration options for the NCC 2020 are covered in detail in
Table 3-4, in Chapter 3 of this manual.