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Primary Rate Interface equipment: overview
553-2901-200
Standard 11.00
— QPC471 or QPC775 Clock Controller
The QPC775 Clock Controller is currently not available for U.S.
markets. The QPC471 and QPC775 Clock Controllers cannot be mixed
in one system. Vintages A through G of the QPC471 Clock Controller
can be used in one system; vintage H of QPC471 Clock Controllers
cannot be mixed with Clock Controllers of other vintages.
See
Figure 1
for a representation of the basic PRI system hardware.
Note: This illustration shows the basic configuration, without the
dual-port NT5D12 DTI/PRI card, nor the associated dual-port
NTBK51AA Downloadable D-Channel daughterboard.
August 1996
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